Foster® S.M. Adhesive 81-10™

1 of 92 products in this brand
Foster® S.M. Adhesive 81-10™ is a cost-effective and fast-setting synthetic elastomer adhesive designed for use with fibrous glass insulation, particularly suitable for insulation with a density of up to 3 lbs. per cubic foot. This adhesive is primarily used for bonding duct wrap and acoustical linings in air-handling ducts, offering an efficient and reliable solution for insulation applications.

Product Type: Elastomeric Adhesive

Application Area: Brush, Duct Wrap, Insulating Glass

Application Method: Roller, Spray

Features: Cost Effective, Fast Setting

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Identification & Functionality

Features & Benefits

Ready-to-Use Product Features
Product Highlights
  • S.M. ADHESIVE is designed for use in applications where fibrous glass insulation is bonded to the interior or exterior of sheet metal air conditioning ducts.
  • S.M. ADHESIVE meets ASTM C916, Type IV (ASC-A-7001- A, Type IV) and NFPA 90A and 90B 25/50 requirements.
  • S.M. ADHESIVE is produced under the classification and follow-up service of Underwriter’s Laboratories, Inc.

Applications & Uses

Application Area
Application Method
Preparation and Application Information

Material Preparation

DO NOT THIN. Stir well, but do not use sticks or boards, which would splinter or otherwise contaminate the product. No need to prime aluminum or galvanized metal. Apply only to clean, dry surfaces. Keep container closed when not in use to prevent solvent evaporation.

Application

Brush

Use a clean paintbrush. Uniformly, apply to metal surface at 200 – 400 sq. ft./gal. (4.9 – 9.8 m2 /l). Press insulation into place, making sure complete contact is made with applied adhesive. Bond may be made within 0 to 15 minutes.

Spray

May be spray applied with conventional air atomizing equipment or airless spray equipment. For spray equipment information, please consult spray recommendations or contact your spray equipment supplier. Average viscosity range: 200 – 500 cps.

Clean Up

Use solvents such as chlorinated solvent (non-flammable) or mineral spirits (flammable) for cleaning brushes and equipment.

Limitations
  • Always test plastic materials for compatibility when using solvent-based products.
  • Make certain this product is completely dry and the area free from solvent odor if food is involved.
  • Not suggested for sealing vapor barrier jackets.
  • Allow to dry to a solvent-free condition before installing weld pins.
  • Overhead applications may require mechanical fasteners.

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Average Weight / U.S. Gallon6.2lbs.ASTM D1475
Average Non-Volatile (by Volume)17 - 19% ASTM D2369
Average Non-Volatile (by Weight)27 - 30% ASTM D2369
Coverage Range200 - 400sq. ft./gal.-
Bonding Time Range0 - 15Minutes-
Flash Point-7°F
Application Properties
ValueUnitsTest Method / Conditions
Service Temperature Limits (at coated surface)-20 to 200°F
Flame Characteristics
ValueUnitsTest Method / Conditions
Flame Spread ¹10ASTM E84
Smoke Developed ¹25ASTM E84
Note

¹ - Tested at coverage rate of 200 sq. ft./gal. Applied to 1/4 inch (6.4 mm) inorganic reinforced cement board. The flame spread may vary at different product thicknesses and/or when applied over other surfaces.

Regulatory & Compliance

Storage & Handling

Storage Condition

Store and apply between 40°F and 100°F.