Tremco Illmod 600

Tremco Illmod 600


Minimal surface preparation required

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.

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    What the experts have to say

    Gold Certification
    Standard: UL 2818 - 2013 Gold Standard for Chemical Emissions for Building Materials, Finishes and Furnishings. Number: 23107-420 Certification Status: Certified.
    • 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

    Black and grey
    5.5 to 6.5 lb/ft³
    Tensile strength:
    21 psi minimum
    Thermal resistance:
    3.3 to 3.6 hr x F x ft²/BTU
    Thermal conductivity:
    0.28-0.30 BTU-in/hr-F-ft²
    120% +/-20%
    Uniform static pressure:
    12 psf
    Fire testing:
    Flame spread: 0
    Chemical compatibility:
    No signs of corrosion on zinc, steel, galvanized steel, aluminum, and copper. No adverse chemical effects with concrete, lightweight concrete, brick, natural stones, plexiglas, or wood
    Full Information:
    Check out the full datasheet available in the Downloads section!