3M slipsheeting update 2021-07-09.pdf

July 9, 2021

Due to supply shortages with the 3M™ Slipsheeting product in early 2020, 3M recommended the purchase of an alternative slipsheeting product from Griff.

Griff is no longer supported as a slipsheeting alternative for 3M sign sheeting.

3M will supply their new in-house alternative slipsheeting product as noted in Information Folder 1.11 and the attached Technical Memo when 3M’s standard slipsheeting product is not available.

Some sign sheeting product liners can also be used as a slipsheeting alternative (see Information Folder 1.11 and the attached Technical Memo).

Please contact Dan Tschida at dmtschida@mmm.com if you have Griff product and are concerned about its use.

Wisconsin Department of Transportation Purchasing Section S822 4822 Madison Yards Way Madison, WI 53705-9100

Governor Tony Evers Secretary Craig Thompson wisconsindot.gov Telephone: (608) 266-0572

Email: mark.mackenzie@dot.wi.gov mailto:dmtschida@mmm.com

Transportation Safety Division

3M™ Reflective Sheeting Sign Maintenance Management Information Folder 1.11 January 2021

Replaces IF 1.11 Dated April 2011 1 Description This information folder defines the 3M procedures for storage, packaging, installation, positioning, cleaning, graffiti removal, and maintenance management of signs made with 3M reflective sheeting products. Per the terms and conditions described in the 3M Product Bulletin for the relevant sheeting product, the procedures described herein must be followed for finished sign faces to qualify for a 3M Warranty.

2 Retroreflective Sheeting Storage Unapplied 3M reflective sheeting products should be stored in a cool, dry area, preferably at a temperature of 65– 75 ºF (18–24 ºC) and a relative humidity of 30–50%. Rolls of sheeting should be stored horizontally in their shipping cartons. Partially used rolls should be returned to their shipping cartons or suspended horizontally from rods or pipes through their cores. Unimaged cut sheets should be stored flat.

2.1 Shelf Life

Sheeting must be applied to substrate within two years of date of sheeting manufacture.

3 Sign Dating Mark the date of manufacture (“Fabrication Date”) on all finished signs using a durable making method. The Fabrication Date constitutes the start of any applicable warranty period. Please consult relevant 3M product bulletin for warranty details. It is also recommended that signs be marked with their date of installation. When dating signs, position date markings so that they will not be covered by mounting posts. Metal stamping, permanent marking crayon, and durable stickers are all suitable marking methods.

2 3M™ Reflective Sheeting Sign Maintenance Management January 2021

4 Slipsheeting All packages containing finished signs or imaged sign faces must be packaged using slipsheeting.

3M™ Slipsheeting ("Slipsheeting") is a coated paper packaging product that helps protects sign faces from blocking, scuffing, and scratching during storage and transport. 3M Slipsheeting is a generic name for two different materials: our primary slipsheeting material, which is light green and glossy on one side, and an alternate slipsheeting material, which is white on both sides, glossy on only one. Please refer to 3M Product Bulletin Slipsheeting for details. Additionally, the glossy side of the release liner from any of the following 3M sheeting products may be used as slipsheeting:

• 3M™ Premium Protective Overlay Film Series 1160

• 3M™ ElectroCut™ Film Series 1170

• 3M™ Engineer Grade and Utility Grade Reflective Sheeting Series 3200

• 3M™ Engineer Grade Prismatic Reflective Sheeting Series 3430 with Pressure Sensitive Adhesive

• 3M™ High Intensity Prismatic Reflective Sheeting Series 3930

• 3M™ Diamond Grade™ Visual Impact Performance Reflective Sheeting Series 3990

• 3M™ Diamond Grade™ DG3 Reflective Sheeting Series 4000

• 3M™ Advanced Flexible Engineer Grade Reflective Sheeting Series 7300

When using one of the above listed liners and unsure of which side of the liner is the glossy side, use a Sharpie® marking pen to draw a two inch line on each side of the liner and allow to dry for five seconds. The marking pen line will be easily wiped off the glossy side that must be placed against the sign face.

Note: the Sharpie® test does not apply to primary or alternate 3M Slipsheeting.

Screen-printed signs must be fully cured prior to packing with either primary or alternate 3M Slipsheeting and continue to be packaged per 3M Information Folder 1.8, Process Color Series 880 and 900 Instructions for Use.

Signs that have been screen printed using Series 990 inks require the use of primary 3M Slipsheeting; alternate 3M Slipsheeting is not suitable for use with Series 990 screen-printed sign faces.

Note: screen-printed signs packaged with slipsheeting of any kind are known to be somewhat sensitive to high temperature and high humidity conditions. In some cases, screen-printed signs exposed to some or all these conditions may develop minor cosmetic blemishes which are detectable under close inspection. Minor cosmetic blemishes are those that do not affect a finished sign's ability to meet the performance specifications defined in the relevant 3M Product Bulletin. As such, minor cosmetic blemishes do not qualify for remedy under the 3M Warranty.

All 3M Slipsheeting materials, including the liners listed above, must be used with the glossy side of the slipsheeting against the screen-printed sign or sign face.

Table 1 indicates slipsheeting compatibility for each 3M reflective sheeting product and imaging method.

Table 1. Slipsheeting compatibilities based on 3M sheeting product and imaging method.

Series 990 Inks Series 880i, 880n, and 1130AQM Inks

Direct Applied Copy

Colored Series 1170 Films

Digitally Printed Sheeting with 1170C Film

Series 3430 Series 3830 Series 3930 Series 3940 Series 3990 Series 4000

Series 7300

Series 3200

Primary Slipsheeting Alternate Slipsheeting

Glossy side of release liner from Series 1160,1170, 3200, 3430, 3930, 3990, 4000, and 7300 http://multimedia.3m.com/mws/media/7263O/if-1-8-3m-series-700-880-990-process-color-instructions.pdf

3 3M™ Reflective Sheeting Sign Maintenance Management January 2021

5 Sign Storage Store all packaged faces (sheeting not applied to a substrate), unimaged blanks, and finished signs inside where they are free from exposure to rain, snow, and extreme temperatures. Store finished signs and sheeted blanks vertically, on edge, in a dry indoor area, as shown in Figures 1, 2, and 3. 3M recommends that a sign inventory system be used to help ensure that older stock is used first. It is also recommended that every sign shipment be accompanied by storage instructions.

Figure 1. Signs stored vertically on a pallet stand.

Figure 2. Signs stored vertically on shelving designed to accommodate larger signs.

Figure 3. Signs stored vertically on shelving designed to accommodate small signs.

WARNING: Keep packaged signs dry. Store sign packages indoors on edge. Do not allow packaged panels or finished signs to become wet in shipment or storage. If packaged signs do become wet, unpack immediately and allow to dry. Allowing packaged signs or faces to remain wet can result in unwarranted permanent damage.

4 3M™ Reflective Sheeting Sign Maintenance Management January 2021

When crating large signs, secure their ribs or back bracing to their crates so they are suspended within their crates while maintaining a gap of at least one inch between sign faces. Figure 4 shows crates containing signs secured in this manner; each crate contains two signs of similar size, secured so as to maintain an appropriate air space between the two sign faces and eliminate the need for slipsheeting.

Figure 4. Large sign storage. Each crate contains two signs of similar size that have been secured to maintain an air space between the two sign faces and eliminate the need for slipsheeting.

5.1 Guide Signs

Guide signs should be stored upright, in a vertical position, on edge, off the ground, on blocks of wood, and with sufficient space between them to allow air to freely circulate between and around them. This will allow normal moisture evaporation from their surfaces. Avoid contact between sign faces and any packaging or treated wood posts. Figure 5 illustrates proper outdoor storage for large signs.

Figure 5. Extruded signs secured vertically for temporary outdoor storage. Signs are shown secured vertically, in racks with sufficient space between them to prevent face damage through contact and to facilitate air flow.

5.2 Screen Printed Faces

Unmounted screen-printed faces must be stored flat and interleaved with 3M™ Slipsheeting as described in Section 4. Package screened faces in lots of 50 or fewer. If wooden boxes and corrugated crates are used to store sheeting, they must be of a design that prevents damage to the sheets.

5.3 Cut-Out Letters and Emblems

Store cut-out letters and emblems in containers designed to prevent shifting and damage during shipment and storage. Store cut-out letters and emblems for storage in easily managed numbers. 3M recommends the common practice of packaging cut-out letters and emblems in lots of 25 of the same letter and size, in clean polyethylene bags, with a stiffening card in each bag to prevent bending and edge damage.

5 3M™ Reflective Sheeting Sign Maintenance Management January 2021

6 Packaging Package finished signs in cardboard sleeves in lots of 10 or fewer and ship on pallets via common carrier, as shown in Figures 6 and 7, or band finished signs in lots of 10 or fewer and ship in custom crates, as shown in Figure 8.

Figure 6. Signs packaged in cardboard sleeves.

Figure 7. Signs packaged in cardboard sleeves and stored on edge.

Figure 8. Signs packaged on edge in custom shipping crate.

WARNING: Packaged faces, packaged unimaged blanks, and packaged finished signs must remain dry during storage and shipment. If packaged faces, blanks, or finished signs become wet, unpack immediately and allow to dry. Allowing packaged signs or faces to remain wet can result in unwarranted permanent damage.

All packages containing multiple stacked signs or sign faces, whether imaged or not, must include slipsheeting as described in Section 4.

6 3M™ Reflective Sheeting Sign Maintenance Management January 2021

Note: 3M™ Advanced Flexible Engineer Grade Reflective Sheeting Series 7300 and 3M™ Engineer Grade and Utility Grade Reflective Sheeting Series 3200 screen printed with 3M™ Process Color Series 990 require 3M Slipsheeting. See Section 4 for details.

7 Sign Shipment Do not scratch or mar sheeting surfaces. Signs and sign packages must be shipped in a manner that prevents abrasion or other damage to the sign faces. Signs that are shipped with contamination, burrs, or deformities in the aluminum may cause permanent damage to the sign sheeting.

7.1 Small Signs

Packaged signs or sign faces must be shipped in covered trucks or trailers to prevent water entry and exposure to extreme weather conditions. If packaged signs or sign faces become wet, unpack immediately and allow to dry.

Once packaged signs reach their final destination, they must be stored indoors where they protected from rain, snow, and external environmental conditions. It is, therefore, recommended that every sign shipment be accompanied by storage instructions.

7.2 Guide Signs

Do not scratch or mar sheeting surfaces. Guide signs must be shipped unpackaged (no materials in contact with sign face), in open or closed trucks or trailers, and secured vertically in racks with sufficient space between them to prevent damage, as shown in Figures 9 and 10.

Figure 9. Extruded panel signs secured for transportation. Signs are shown secured vertically, in racks with sufficient space between them to prevent face damage through contact and to facilitate air flow.

Figure 10. Flat panel signs secured for transportation. Signs are shown secured vertically, in racks with sufficient space between them to prevent face damage through contact and to facilitate air flow.

7 3M™ Reflective Sheeting Sign Maintenance Management January 2021

8 Installation Nylon washers are required whenever twist style fasteners are used to mount Signs. Tighten mounting bolts by holding the bolt head stationary on the face of the sign and tightening the nut from the back of the sign.

8.1 Large Signs

Use care to prevent cables, hooks, or chains from contacting the sign surface during erection of large signs.

Such contact can cause permanent visible damage. Do not scuff or walk on signs. Vertical back stiffeners should be used to prevent buckling or rivet popping during handling of large sign panels.

9 Sign Positioning To achieve maximum traffic sign retroreflection while minimizing specular glare, signs must be correctly positioned. Specular glare is the mirror type reflection characteristic of glossy surfaces. Severe specular glare can make sign legends unreadable. To maximize effectiveness and minimize or eliminate specular glare, employ the following guidelines when positioning signs.

9.1 Ground Installations

On a tangent section, position sign so that the vertical axis is plumb and the horizontal axis is at an angle of 93º relative to the traffic lane the sign serves, as shown in Figure 11. This is known as the standard A format.

Figure 11. Standard A format.

On a horizontal curve section, position the sign so that its vertical axis is plumb and its horizontal axis is at an angle of 93º relative to a straight line extending from the sign to the point at which the sign is to be read (i.e. 40 feet/1 inch of letter height), as shown in Figure 12.

Figure 12. Horizontal curve format.

Direction of Traffic

93º

8 3M™ Reflective Sheeting Sign Maintenance Management January 2021

9.2 Overhead Signs

For an overhead sign mounted to a roadway bridge that is not perpendicular to the roadway, shim the mounting frame to make it perpendicular to the road surface, as shown in Figure 13, to reduce the sign face entrance angle.

Figure 13. Mounting format for an overhead sign installed on a bridge that is not perpendicular to the roadway.

Rotate the top of the sign slightly forward (<5º) from vertical to maximize luminance from vehicle headlights on non-illuminated signs, as shown in Figure 14.

Figure 14. Vertical alignment of non-illuminated overhead sign.

A sign on a road with an uphill grade requires more vertical rotation than a sign on a flat road does. A sign on a downhill grade can usually be mounted plumb, as illustrated in Figure 15.

Figure 15. Vertical sign rotations for (left) uphill road grade, and (right) downhill road grade.

Bridge

Sign

Direction of Traffic

Sign

Road

90º

Plumb Plumb

Sign

90º

Sign

Road Road

9 3M™ Reflective Sheeting Sign Maintenance Management January 2021

10 Temporary Sign Covering Do not cover signs. Sign coverings can create an environment that can cause permanent damage that is not covered under a 3M warranty.

11 Cleaning For maximum retroreflectivity and durability, and acceptability, signs should be kept clean and free from dirt, road tar, oil, and bituminous material. Treat reflective sheeting products with the same care used when cleaning high gloss automotive finishes. Avoid pressure and brushes with stiff bristles that may damage sign faces and use gentle cleaners.

11.1 Cleaner

For maximum service life, do not use abrasives or harsh chemically concentrated cleaners. A liquid, non-abrasive detergent solution suitable for high quality painted surfaces is recommended. Cleaner must be non-abrasive, neither highly acidic nor highly alkaline (pH of 6 to 8 is recommended), and free of damaging solvents. If there is any doubt concerning the suitability of a cleaner, it should be tested on a separate piece of sheeting or small section of sign before being used in volume.

11.2 Pressure Sprayers

Avoid high pressure sprayers. Sheeting edges are especially susceptible to pressure spray damage.

11.3 Recommended Procedure

1 Flush the entire surface with clean water to remove loose dirt particles.

2 Wash the sign face with a soft brush, rag, or sponge, using detergent or suitable commercial cleaners.

Wash thoroughly from the top down, avoiding abrasion. Once cleaner has been applied, keep a steady stream of water flowing on the surface to wash away dirt particles. A standard hand spray may be used under following conditions:

o Minimum of 12 inches (30 cm) between cleaning jet(s) and sign face o Cleaning wand or jets at an angle of no more than 45 degrees from perpendicular to the marking surface

3 Rinse the entire sign face with clean water. Allow to drain dry.

11.4 Tar, Oil, and Road Spray

If any tar, oil, or road spray material that remains on the sign after following the procedure described in above, moisten a soft cloth with 3M Citrus Cleaner and wipe the remaining soiled areas lightly. Following the Citrus Cleaner, wash the sign with detergent and water, then rinse with clean water. Allow to drain dry.

Do not spray Citrus Cleaner or other cleaning solutions directly onto the sheeting surface. Avoid using Citrus Cleaner or other cleaning compounds at sheeting edges.

WARNING: Do not use strong solvents. Cleaning sign surfaces with solvents may cause damage to the sign faces.

11.5 Graffiti Removal

When graffiti must be removed from a reflective sign, restoration may be attempted. The type of graffiti marking material (type of paint, ink, etc.) and duration of exposure both influence how likely removal is to result in sign damage. When attempting to remove graffiti, the following escalation of cleaner strength is recommended:

1 Soap and water 2 Isopropyl alcohol 3 3M Citrus Cleaner 4 Mineral spirits 5 Commercially available graffiti removers

10 3M™ Reflective Sheeting Sign Maintenance Management January 2021

Each of the above-listed solvents has the potential to permanently damage sheeting surfaces if exposure time is too long. When attempting to remove graffiti from a sign using a solvent, it is strongly recommended that the solvent be tested on a small and inconspicuous portion of the sign, using a cloth moistened with the cleaning agent, to assess the potential for sheeting or process color damage before applying the cleaner to the entire sign.

NOTE: Some cleaners do not affect daytime appearance but do cause loss of retroreflectivity. View cleaned areas with a light source after cleaning to ensure that retroreflectivity has not been affected.

All purpose-specific graffiti removers have significant potential to damage reflective sheetings. The use of 3M Premium Protective Overlay Series 1160 Film facilitates graffiti removal properties. However, overexposure to graffiti removers can also damage Series 1160 overlay. See 3M Product Bulletin 1160 for details and recommendations.

It may be possible to remove the graffiti before continued rubbing damages the sheeting or removes the process color. However, continued or repeated cleaning with these solvents will result in loss of reflectivity, removal of screened color, and reduced durability.

12 Health and Safety Information Read all health hazard, precautionary, and first aid statements found in the Safety Data Sheets (SDS) and Article Information Sheets for important health, safety, and environmental information. To obtain SDSs and Article Information Sheets for 3M products, go to 3M.com/SDS, contact 3M by mail, or for urgent requests call 1-800-364-3577.

13 Other Product Information Always confirm that you have the most current version of the applicable product bulletin, information folder, or other product information from 3M’s Website at http://www.3M.com/roadsafety.

14 Literature References 3M IF 1.8 3M™Process Colors Series 880 and 900 Instructions for Use 3M PB 990 3M™ Process Color Series 990 3M PB 1160 Premium Protective Overlay Film Series 1160 3M PB 1170 3M™ ElectroCut™ Film Series 1170 3M PB 3200 Engineer Grade and Utility Grade Reflective Sheeting Series 3200, 3260 and 5200 3M PB 3430 Engineer Grade Prismatic Reflective Sheeting Series 3430 with Pressure Sensitive Adhesive 3M PB 3930 3M™ High Intensity Prismatic Reflective Sheeting Series 3930 3M PB 3930DS 3M™ High Intensity Prismatic Reflective Digital Sheeting Series 3930DS 3M PB 3990 3M™ Diamond Grade™ VIP Reflective Sheeting Series 3990 3M PB 4000 3M™ Diamond Grade™ DG3 Reflective Sheeting Series 4000 3M PB 4000DS 3M™ Diamond Grade™ DG3 Prismatic Reflective Digital Sheeting Series 4000DS 3M PB 7300 3M™ Advanced Engineer Grade Reflective Sheeting Series 7300 3M PB Slipsheeting 3M™ Slipsheeting https://multimedia.3m.com/mws/media/1575967O/product-bulletin-series-3930ds.pdf http://multimedia.3m.com/mws/media/7408O/pb-1160-3m-premium-protective-overlay-film-series-1160.pdf http://www.mmm.com/tss http://multimedia.3m.com/mws/media/7408O/pb-1160-3m-premium-protective-overlay-film-series-1160.pdf https://multimedia.3m.com/mws/media/1575966O/product-bulletin-series-4000ds.pdf https://multimedia.3m.com/mws/media/1459545O/3m-advanced-flexible-engineer-grade-reflective-sheeting-series-7300-product-bulletin.pdf http://multimedia.3m.com/mws/media/7409O/pb-1170-3m-electrocut-film-series-1170.pdf http://multimedia.3m.com/mws/media/902497O/pb-3200-3260-and-5200-3m-engineer-grade-and-utility-grade.pdf http://multimedia.3m.com/mws/media/560296O/pb3430-us-engineer-grade-prismatic-reflective-sheeting.pdf https://multimedia.3m.com/mws/media/254031O/high-intensity-grade-reflective-products.pdf https://multimedia.3m.com/mws/media/7389O/pb-3990-3m-diamond-grade-vip-reflective-sheeting.pdf https://multimedia.3m.com/mws/media/349914O/pb-4000-3m-diamond-grade-dg3-reflective-sheeting.pdf http://multimedia.3m.com/mws/media/7263O/if-1-8-3m-series-700-880-990-process-color-instructions.pdf http://multimedia.3m.com/mws/media/42265O/pb-990-3m-process-color-series-990.pdf

For Information or Assistance Call: 1-800-553-1380 In Canada Call:

1-800-3M HELPS (1-800-364-3577)

Internet:

http://www.3M.com/roadsafety

3M, Science. Applied to Life., ElectroCut, and Diamond Grade are trademarks of 3M. Used under license in Canada.

3M assumes no responsibility for any injury, loss, or damage arising out of the use of a product that is not of our manufacture. Where reference is made in literature to a commercially available product, made by another manufacturer, it shall be the user’s responsibility to ascertain the precautionary measures for its use outlined by the manufacturer.

Important Notice All statements, technical information and recommendations contained herein are based on tests we believe to be reliable at the time of this publication, but the accuracy or completeness thereof is not guaranteed, and the following is made in lieu of all warranties, or conditions express or implied. Seller's and manufacturer's only obligation shall be to replace such quantity of the product proved to be defective. Neither seller nor manufacturer shall be liable for any injury, loss or damage, direct, special or consequential, arising out of the use of or the inability to use the product. Before using, user shall determine the suitability of the product for his/her intended use, and user assumes all risk and liability whatsoever in connection therewith. Statements or recommendations not contained herein shall have no force or effect unless in an agreement signed by officers of seller and manufacturer.

Transportation Safety Division 3M Center, Building 0225-04-N-14 St. Paul, MN 55144-1000 USA

Phone 1-800-553-1380 Web 3M.com/roadsafety

Please recycle. Printed in USA © 3M 2021.

All rights reserved. Electronic Only http://www.mmm.com/tss http://www.mmm.com/tss

Dan Tschida 3M Transportation Safety Division 3M Center, Building 235 Field Service Engineer St. Paul, MN 55144-1000

May 3, 2021

Technical Memo

New product delivery plan for 3M™ Slipsheeting SCW-568 back orders.

All packages containing multiple stacked signs or sign faces, whether imaged or not, must include slipsheeting. This document presents an exhaustive list of slipsheeting solutions that conform to the requirements of the 3M™ MCS™ Warranty for Traffic and 3M™ MCS™ Warranty.

3M has experienced a supply shortage of 3M™ Slipsheeting SCW-568. When SCW-568 is not available, we will supply you with an alternate slipsheeting. 3M has evaluated the alternate slipsheeting and determined that it can be used in the same way as SCW-568 with two exceptions:

1) It may not be used as slipsheeting for 3M™ Engineer Grade Reflective Sheeting Series 3200 (“3200”) and 3M™ Advanced Flexible Engineer Grade Reflective Sheeting Series 7300 (“7300”), unless digitally imaged and overlaminated with clear 3M™ ElectroCut™ Film Series 1170 (“1170C”); an

2) It may not be used as slipsheeting for signs screen printed using 3M™ Process Color Series 990 inks.

To facilitate the inclusion of the alternate slipsheeting material, 3M slipsheeting SKUs will now have the generic descriptor of “3M Slipsheeting.”

If/when we encounter a 3M Slipsheeting backorder situation, our alternate slipsheeting will be supplied. The glossy side of the primary slipsheeting material is light green. The alternate slipsheeting material is white on both sides, glossy on only one. It is incumbent upon the customer to take note of what slipsheeting material is received and use it appropriately (see table below for usage restrictions).

Additionally, the glossy side of the release liner from any of the following 3M sheeting products may be used as slipsheeting:

• 3M™ Premium Protective Overlay Film Series 1160

• 3M™ ElectroCut™ Film Series 1170

• 3M™ Engineer Grade and Utility Grade Reflective Sheeting Series 3200

• 3M™ Engineer Grade Prismatic Reflective Sheeting Series 3430 with Pressure

Sensitive Adhesive

• 3M™ High Intensity Prismatic Reflective Sheeting Series 3930

• 3M™ Diamond Grade™ Visual Impact Performance Reflective Sheeting

Series 3990

• 3M™ Diamond Grade™ DG3 Reflective Sheeting Series 4000

• 3M™ Advanced Flexible Engineer Grade Reflective Sheeting Series

When using one of the above listed liners and unsure of which side of the liner is the glossy side, use a Sharpie® marking pen to draw a two inch line on each side of the liner and allow to dry for five seconds. The marking pen line will be easily wiped off the glossy side that must be placed against the sign face.

Note: the Sharpie® test does not apply to primary or alternate 3M Slipsheeting.

Screen-printed signs must be fully cured prior to packing with either primary or alternate 3M Slipsheeting and continue to be packaged per 3M Information Folder 1.8, Process Color Series 880 and 900 Instructions for Use. Signs that have been screen printed using Series 990 inks require the use of primary 3M Slipsheeting; alternate 3M Slipsheeting is not suitable for use with Series 990 screen-printed sign faces.

Note: screen-printed signs packaged with slipsheeting of any kind are known to be somewhat sensitive to high temperature and high humidity conditions. In some cases, screen-printed signs exposed to some or all these conditions may develop minor cosmetic blemishes which are detectable under close inspection. Minor cosmetic blemishes are those that do not affect a finished sign’s ability to meet the performance specifications defined in the relevant 3M Product Bulletin. As such, minor cosmetic blemishes do not qualify for remedy under the 3M Warranty.

All 3M Slipsheeting materials, including the liners listed above, must be used with the glossy side of the slipsheeting against the screen-printed sign or sign face.

The following table indicates slipsheeting compatibility for each 3M reflective sheeting product and imaging method.

Series 990 Inks

Series 880i, 880n, and 1130AQM Inks

Direct Applied Copy

Colored Series 1170 Films

Digitally Printed Sheeting with 1170C Film

Series 3430 Series 3830 Series 3930 Series 3940 Series 3990 Series 4000

Series 7300

Series 3200

Primary Slipsheeting Alternate Slipsheeting

Glossy side of release liner from Series 1160,1170, 3200, 3430, 3930, 3990, 4000, 7300

The Slipsheeting is made available to you in “AS IS” condition. 3M MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO 1) ANY IMPLIED WARRANTIES OF

MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR ANY IMPLIED

WARRANTY ARISING OUT OF A COURSE OF DEALING, CUSTOM, OR USAGE; 2)

WARRANTIES RELATED TO THE SLIPSHEETING'S EFFECTIVE LIFE OR ABILITY TO SURVIVE

ANY TESTING; OR 3) WARRANTIES OF TITLE OR NON-INFRINGEMENT OF INTELLECTUAL

PROPERTY. You are solely responsible for evaluating and determining whether the Slipsheeting is suitable and appropriate for your particular use and intended application, and for the safe handling of the Slipsheeting. You understand that the Slipsheeting performance and any finished materials incorporating the Slipsheeting depends upon a variety of factors including, but not limited to, preparation, application procedure, geographic area, exposure conditions, and maintenance. You assume the entire risk as to use, quality, and performance of Slipsheeting.

As of the date of this document, please allow 30 days from the time of order until shipping.

Subject to change. Please contact your 3M representative for more information.

We appreciate your trust in 3M solutions and the opportunity to serve your needs. We remain committed to providing products that help improve visibility and safety.

Should you have any questions, please contact your 3M representative.

Sincerely, Dan Tschida Field Service Engineer 3M Transportation Safety Division

Wisconsin Department of Transportation

Purchasing Section S822

4822 Madison Yards Way

Madison, WI 53705-9100

Governor Tony Evers

Secretary Craig Thompson wisconsindot.gov

Telephone: (608) 266-0572

Email: mark.mackenzie@dot.wi.gov

July 9, 2021

Due to supply shortages with the 3M™ Slipsheeting product in early 2020, 3M recommended the purchase of an alternative slipsheeting product from Griff.

Griff is no longer supported as a slipsheeting alternative for 3M sign sheeting.

3M will supply their new in-house alternative slipsheeting product as noted in Information Folder 1.11 and the attached Technical Memo when 3M’s standard slipsheeting product is not available.

Some sign sheeting product liners can also be used as a slipsheeting alternative (see Information Folder 1.11 and the attached Technical Memo).

Please contact Dan Tschida at dmtschida@mmm.com if you have Griff product and are concerned about its use.

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