Static control epoxy coating.pdf

RESUFLOR™ 3725

STATIC CONTROL EPOXY COATING

P A GP3725 S

P B GP3725B01 H

Protective

Marine Coatings

Revised: March 15, 2021 www.sherwin-williams.com/protective

P D RESUFLOR 3725 Static Control Epoxy Coating is a high solids, two-component novolac epoxy coating used for static dissipative and conductive fl ooring systems. It is designed as a static dissipative coating over an insulative surface and as a conductive coating when used over a conductive primer.

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• Two-component system for ease of use

• Good chemical resistance

• Dissipates static charge

• Conductive when used over conductive primer

T U RESUFLOR 3725 Static Control Epoxy Coating is used as a coating or topcoat over standard fl ooring systems to provide a static dissipative fl ooring system in the range of 106 to 109 ohms resistance. It is an ideal fl ooring fi nish in computer rooms, circuit board assembly areas, hangars and where highly sensitive electronic equipment is used regularly. Resufl or 3725 can be used as a conductive coating in the range of 25,000 to 106 ohms resistance when applied over a conductive primer (Resufl or Aqua 3424). Conductive fl ooring is required in fl ammable material handling areas, black powder storage areas, and other areas where highly explosive materials are present. Resufl or 3725 provides exceptional resistance to wear, abrasion and chemical attack from most common alkalis and acids.

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• Slab on grade requires vapor moisture barrier

• Substrate must be structurally sound, dry and free of bond inhibiting contaminants

• During installation and initial cure cycle substrate and ambient air temperature must be at a minimum of 50ºF (10°C).

Substrate temperature must be at least 5ºF (3ºC) above the dew point (for lower temperature installation contact technical service).

• Strictly adhere to published coverage rates

• A conductive primer must be used with this product when being used as a conductive coating

• This coating though resistant, is not a guarantee against tire staining. Vehicular tires from cars and trucks to tractors and boat trailers are varied and have the potential to leave a stain under certain conditions. Place rubber mats or carpet pieces under the tires to avoid the issue.

S P Proper inspection and preparation of the substrate to receive resinous material is critical. Read and follow the “Instructions for Concrete Surface Preparation” (Form G-1) for complete details.

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P C Color: Light, Medium Gray

Mix Ratio: 2:1

Volume Solids: 88% ± 2%, mixed

Weight Solids: 93% ± 2%, mixed

VOC (EPA Method 24): <100 g/L ; 0.83 lb/gal, mixed

Viscosity, mixed: 4,500 cps

Recommended Spreading Rate per coat:

Minimum Maximum

Wet mils (microns): 4 (100) 6 (150) ~Coverage sq ft/gal (m2/L): 275 (7.0) 400 (10.2)

Drying Schedule @ 4-6 mils (100-150 microns) wet:

@ 73°F (23ºC)

To touch: 5-7 hours To recoat: 12-18 hours Light traffi c: 24 hours minimum Full cure: 7 days

If maximum recoat time is exceeded, abrade surface before recoating.

Drying time is temperature, humidity, and fi lm thickness dependent.

Pot Life: gallon mass 2 hours @ 73°F (23ºC)

Shelf Life:

Flash Point:

Part A: 12 months, unopened Part B: 12 months, unopened Store indoors at 50°F (10°C) to 90°F (32°C)

>120°F (>50°C), ASTM D 93. mixed

P C Test Name Test Method Results Abrasion Resistance

ASTM D4060,

CS17 wheel, 1,000 cycles

90-100 mgs loss

Conductivity ASTM F150-06 106 to 10 9 ohms Conductivity applied over conductive base coat

ASTM F150-06 25,000 to 106 ohms

Flammability Self-extinguishing over concrete

Hardness, Shore D ASTM D 2240 70 Impact Resistance ASTM D 2794 160 in/lbs (pass) Resistance to Elevated Tempera-tures

MIL-D-3134J No slip or fl ow at reqauired tem-perature of 158ºF (70ºC)

Static Charge Decay

MIL-B-81705B Dissipates a 5,000 volt charge zero in less than 0.1 seconds

RESUFLOR™ 3725

STATIC CONTROL EPOXY COATING

P A GP3725 S

P B GP3725B01 H

Protective

Marine Coatings

Revised: March 15, 2021 www.sherwin-williams.com/protective

C Clean up mixing and application equipment immediately after use. Use toluene or xylene. Observe all fi re and health precautions when handling or storing solvents.

S Refer to the SDS sheet before use.

Published technical data and instructions are subject to change without notice. Contact your Sherwin-Williams representative for additional technical data and instructions.

M Occasional inspection of the installed material and spot repair can prolong system life. For specifi c information, contact your Sherwin- Williams representative.

D The information and recommendations set forth in this Product Data Sheet are based upon tests conducted by or on behalf of The Sherwin-Williams Company.

Such information and recommendations set forth herein are subject to change and pertain to the product off ered at the time of publication. Consult your Sherwin- Williams representative to obtain the most recent Product Data Information and Application Bulletin.

W The Sherwin-Williams Company warrants our products to be free of manufactur-ing defects in accord with applicable Sherwin-Williams quality control procedures.

Liability for products proven defective, if any, is limited to replacement of the defec-tive product or the refund of the purchase price paid for the defective product as determined by Sherwin-Williams. NO OTHER WARRANTY OR GUARANTEE

OF ANY KIND IS MADE BY SHERWIN-WILLIAMS, EXPRESSED OR IMPLIED,

STATUTORY, BY OPERATION OF LAW OR OTHERWISE, INCLUDING MER-

CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

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APPLICATION INSTRUCTIONS:

1. Inspect base coat prior to application of seal coat. Test surface resistance in accordance with NFPA 99. Resistance range should be less than 150,000 ohms when used as a conductive coating over a conductive primer. If deviation from this range occurs, consult your Sherwin-Williams representative immedicately.

2. Both Part A & B components of Resufl or 3725 must be pre-mixed to disperse conductive elements evenly throughout the resin. It is normal to have color variations even after premixing.

Premix 3725A (resin) and 3725B (hardener) separately, using a low speed drill and Jiff y blade. Mix for one minute and until uniform, exercising caution not to whip air into the materials.

3. Add 2 parts 3725A (resin) to 1 part 3725B (hardener) by volume.

Mix with low speed drill and Jiff y blade for three minutes and until uniform. Apply using a squeegee or short nap roller at a spread rate of 320 sq. ft. per gallon to yield 5 mils WFT. Allow to cure at least 24 hours before opening to light foot traffi c.

NOTE: 1. If applied too thick, the stipple size increases and roller lines may appear. 2. Two coats will be required to hide the Resufl or Aqua 3424 Conductive Black Primer. 3. For ESD applications use a pigmented primer similar in color to the topcoat to avoid "show through" of the substrate.

O I Packaging:

Part A: 1 gallon (3.8L) and 5 gallon (18.9L) containers Part B: 1 gallon (3.8L) and 5 gallon (18.9L) containers

Weight: 12 ± 0.2 lb/gal; 1.4 Kg/L mixed, may vary by color