Pre-Compressed Impregnated Foam Seal for Expansion Joints. Illmod® 600 is a UV stable, pre-compressed, self-expanding, flexible, flame-resistant joint seal. It is a high-density polyurethane foam that is impregnated with a modified acrylic resin and treated with a pressure-sensitive adhesive on one side for ease of installation. Illmod 600 self-expands to fill the joint creating an elastic, vapor-permeable, weathertight seal.
Remains permanently flexible
Low volatility
Chemically compatible with many types of commercial construction substrates
Compatible with several Tremco sealants
No mixing or masking
Can be painted over with water-based, flexible paint
Minimal surface preparation required
Proven wind driven rain resistance since 1965
Compatible with most porous or sensitive substrates
