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Gaco 183M Closed Cell Foam

Gaco 183M is an HFC-blown (zero ozone-depleting) liquid spray system that cures to a medium-density rigid polyurethane insulation material. It contains polyols derived from naturally renewable oils, post-consumer recycled plastics, and pre-consumer recycled materials. 183M does not contain CFC’s, HCFC’s or other gases harmful to the environment. This system can be sprayed on clean, dry substrates down to 35°F (2°C). It is a Class I fire rated foam that meets the requirements of ICC-ES AC377 Acceptance Criteria for Foam Plastic Insulation. 183M meets the requirements of AC377 Appendix X for use in attic and crawl spaces without an additional ignition barrier. It is ABAA Evaluated and GreenGuard certified.

GreenGuardGreenGuard Gold   


SPRAYABILITY. Superior formulation utilizing Transcend™ technology provides a consistent, user friendly foam with predictable yields.

LESS VISCOUS FORMULATION. Reduces wear and tear on equipment with less clogging of guns.

LOWER ODOR FORMULA. Reduces odor in application, improving work environment.

WINTER AND SUMMER FORMULATIONS. Allows you to expand your spray window in colder temperatures.

LOWER SPRAY TEMPERATURE. Easier on equipment and more comfortable to apply.



ENERGY EFFICIENT. Seamless air barrier reduces uncontrolled air leakage, lowering energy costs for building owner and homeowner.

STRONG. Improves overall structural strength of wall and roof systems.

HEALTHY. Reduces condensation, moisture and mold, improving occupant comfort, health and safety.

RESPONSIBLE. Higher aged R-values than conventional insulation. Reduces energy consumption, and contains no ozone-depleting chemicals. Earn up to 20 LEED credits.

QUIET. Acts as a sound barrier to help block airborne noises. 



See a complete list of available brochures, specifications, test reports and case histories in the green area on the top right of the page. 

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