SILAPRENE® 20248 is a solvent-based acrylic pressure-sensitive adhesive. It is designed to provide high-performance properties with a two-mil dry coating on primed polyester. The curing system does not require a cure, although curing can be accelerated to optimize high-temperature shear properties and solvent resistance.

Product Type: Pressure Sensitive Adhesive, Solventborne Adhesive

Compatible Substrates & Surfaces: Composites, Fiberglass, Galvanized Steel, Metal, Plastics, Stainless Steel

Chemical Family: Acrylics & Acrylates

Technical Data Sheet
Message our experts with questions
Robert Blackstone avatar

Robert Blackstone

Global Leader - Inside Sales

Please reach out to me with any questions, I am happy to assist you in finding the right product or learning more about our storefront

Enhanced TDS

Identification & Functionality

Chemical Family

Applications & Uses

Curing System

Does not require cure. Curing can be accelerated to optimize high temperature shear properties and solvent resistance by curing for:

  • 2 minutes at 250°F or
  • 1 week at 150°F or
  • 1 - 3 months at room temperature


Soluble in
Toluene/ethyl acetate
Typical Properties
ValueUnitsTest Method / Conditions
Viscosity (at 73°F, spindle 4, at 20 rpm)2,500 - 3,500cP-
Solid Contentapprox. 49%-
Densityapprox. 7.9lb/gal-
Shear Resistance (at RT 10+ days)1000.0g/inch²PSTC-1
Shear Resistance (at RT: 8+ h)1000.0g/ ½ square inch-

Regulatory & Compliance

Certifications & Compliance

Technical Details & Test Data

Test Data
Property Key Value
180° peel 3.5 - 6.5 pli. (PSTC-1)


Safety & Health

Precautionary Data

This product is extremely flammable. Vapors may form an explosive mixture with air. Precautions should be taken to keep product away from fire, sparks, motors and other sources of heat or flame. Turn off or deactivate any electrical equipment or sources of ignition. Adequate ventilation is required to keep vapor concentrations below the Threshold Limit Value.

  • Keep away from children.
  • Keep container closed when not in use
  • Store closed container under 80°F.
  • This product contains a toxic chemical subject to the reporting requirements of Section 313 of the Emergency Planning and Community Right-to-Known act of 1986 and 40 CFR 372.

Packaging & Availability

Regional Availability
  • North America

Storage & Handling

Shelf Life
6 Months