THERMastic 80 Adhesive.pdf

A High Performance SEBS Modified Elastomeric Hot-Melt Adhesive

THERMastic® 80 Adhesive is a high quality unblown asphalt modified with SEBS polymers. THERMastic 80 Adhesive provides excellent performance qualities.

THERMastic 80 Adhesive is used as an insulation, interply, and flood coat adhesive for modified bitumen systems as well as in high performance built-up roofs. THERMastic 80 exceeds the performance requirements of ASTM D 6152. Refer to UL Roofing Materials and Systems Directory and/or FM Approvals RoofNav for applicable system configurations.

Available in 55 lb.(24.9kg) containers, 9 containers per pallet.

General Application Data: Roof replacement usually involves more complexities than new construction roofing. Often encountered are situations such as rusted/ deteriorated decks, rotted wood components, rooftop equipment which cannot be moved or shut down, and numerous other conditions.

The following application information is designed to serve as a general guide. Your local Tremco Representative will prepare detailed specifications based upon your roof’s conditions.

Structural Deck: Must be properly designed and structurally sound.

Drainage: Excessive ponding conditions are unacceptable and will adversely affect performance of any roofing system. If positive drainage does not exist, water removal must be facilitated by lowering drains, and/or installing additional drains or tapered insulating systems.

Insulation: Insulation must be dry and kept dry. No more insulation shall be installed than can be covered that day. Follow insulation manufacturer’s instructions to obtain minimum thickness for spanning metal deck ribs.

Installation Procedures: According to particular job specifications, prepare surface to be covered:

• Replace areas of wet insulation, deteriorated deck, and wood components.

• Install roof insulation or a base sheet by mechanical attachment or in a uniform continuous mopping of THERMastic 80 Adhesive applied at 25-30 lb/100 ft2 (1.25-1.5 kg/m2).

Plan placement of roofing ply sheets to ensure that water will flow over or along, but not against exposed edges. Use standard kettle equipped with circulating pump. Do not heat THERMastic 80 Adhesive above its flash point.

Application temperature range: 415-465°F (213-240° C). Starting at low point of roof, apply a uniform continuous mopping of THERMastic 80 Adhesive using standard roofing mop or Tremco approved felt layer.

Use ply sheets to start and finish roof membrane along edges, terminations and projections as specified. Install ply sheets, overlapping each previous ply the specified width. Embed each ply in uniform and continuous mopping of THERMastic 80 Adhesive at an interply application rate of 25 lbs/100 sq ft (1.25 kg/m2) +20% tolerance.

DESCRIPTION

BASIC USES

PACKAGING

APPLICATION

THERMastic® 80 Adhesive

FEATURES

Hot Elastomeric Roof Membrane Adhesive

800% elongation

High performance

UL & FM approved

BENEFITS

• Provides very good elongation and recovery

• Excellent cold weather characteristics

• Long service life and increased durability of roof membrane

• Fire/wind protection

Ply shall never touch ply. Apply THERMastic 80 Adhesive no more than ten feet (3m) ahead of each roll. Lightly broom plies from unmopped side to assure complete adhesion. Tie in previous work 24”(610mm). Lap ply sheet ends 6”(152mm). Stagger end laps. Avoid walking on plies until THERMastic 80 Adhesive has cooled. Install flashings as specified.

Gravel: Apply THERMastic 80 over roof surface at 50 lb/100 ft2 ± 20% (2.4kg/m2).

Immediately broadcast 400 lb/100 ft2 (19.6kg/m2) of new, clean gravel or 300lb/ 100 ft2 (14.6 kg/m2) of slag into adhesive. Aggregate shall conform to ASTM D 1863.

Smooth Surface: Consult your local Tremco Representative for specific applications suitable for your geographic area.

THERMastic 80 Adhesive quantities for waterstop/tie-offs, flashings, miscellaneous detail applications and minimum kettle capacity are not included in interply and flood coat application rates.

• Not intended to perform under ponding conditions. Positive drainage required.

• Not to be exposed to solvents, oils, or other contaminants harmful to asphaltic materials.

• Not for use over expanded polystyrene (EPS) or EPS composite insulations installed in any configuration unless EPS is encapsulated within lightweight insulating cellular concrete.

• Not for direct use over isocyanurate insulation. Isocyanurate insulations must be overlayed with an acceptable coverboard.

• Not for use over phenolic insulations installed in any configuration.

• Backnail felts on roofs with slopes 2:12 (2” per foot) (17%) or greater. Do not install on roofs with slopes greater than 3:12 (3” per foot) (25%).

• Do not install when ambient temperatures are below 50°F (10° C) unless special cold weather application procedures are followed. Consult your local Tremco Representative for details.

Your local Tremco Roofing Sales Representative can provide you with effective maintenance procedures which may vary, depending upon specific conditions. Periodic inspections, early repairs and preventative maintenance are all part of a sound roof program.

Users must read container labels and Safety Data Sheets for health and safety precautions prior to use.

Your local Tremco Roofing Sales Representative, working with the Technical Service Staff, can help analyze conditions and needs to develop recommendations for special applications.

THERMastic® 80 Adhesive

APPLICATION

CONTINUED

SURFACING OPTIONS

APPLICATION RATES

LIMITATIONS

PHYSICAL PROPERTIES

MAINTENANCE

PRECAUTIONS

TECHNICAL SUPPORT

PROPERTY TYPICAL VALUE TEST METHOD

Volatile organic compound (less water, less exempt solvent) 0 g/L ASTM D3960

Elongation @ 77°F (25°C) 800% ASTM D412

Elastic Recovery 96% ASTM D412

Softening point 195-205°F (90-96°C) ASTM D36

Density @ 77°F (25°C) 8.2 lb/gal (982 kg/m3) ASTM D70

Flash point 525°F (274°C) minimum ASTM D92

Low Temperature Flexibility 18°F (-8°C) ASTM D3111

Penetration 51 dmm ASTM D5

Penetration after heat exposure 49.7 dmm ASTM D6152

Tremco is a US Registered trademark of Tremco CPG Inc.

The information provided on this data page supersedes all previous data concerning this product and its application.

The Statements provided concerning the materials shown are intended solely as a general guide for material usage and are believed to be true and accurate. Since the manner of use is beyond our control, Tremco DOES NOT MAKE NOR DOES IT AUTHORIZE ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PURPOSE, OR ANY OTHER WARRANTY, GUARANTEE OR REPRESENTATION, EXPRESSED OR IMPLIED, CONCERNING THIS MATERIAL EXCEPT THAT IT CONFORMS TO TREMCO’S PRODUCT SAMPLE. Buyer and user accept the product under those conditions and assume the risk of any failure, injury of person or property and loss or liability resulting from the handling, storage or use of the product, whether or not it is handled, stored, used in accordance with directions or specifications. UNDER NO CIRCUMSTANCE SHALL TREMCO BE LIABLE FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES ARISING FROM ANY BREACH OF WARRANTY. IN ALL CASES, TREMCO’S LIABILITY IS LIMITED, AT TREMCO’S OPTION, TO THE REPLACEMENT OF GOODS, OR THEIR VALUE, PROVEN TO BE DEFECTIVE IN MANUFACTURING.

www.tremcoroofing.com 3735 Green Road Beachwood, Ohio 44122 1.800.852.6013

50 Beth Nealson Drive Toronto, Ontario M4H 1M6 1.800.668.9879 Tremco Roofing and Building Maintenance is part of Tremco Construction Products Group.