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Unlike other insulation packages from the big box aircraft supply houses that come from some airline’s surplus bin, Heat Shield Mat was specifically chosen to be THE high-tech, easy-to-install insulation of choice for the firewall and cowling on your RV or other homebuilt. It may be installed during construction or retrofitted to flying aircraft.
Heat Shield Mat is self-adhesive and has a woven fiberglass fabric backing and an aluminized face. The high temp adhesive easily resists temps that would cause others to fail. Aluminum is approximately 97% reflective and will greatly reduce the heat coming into the aircraft cabin. The fiberglass fabric insulation behind the aluminized foil face will stop any heat not already reflected.
Apply Heat Shield Mat to the engine side of your firewall and to the inside of your cowling in areas where exhaust heat might damage your paint. Seal the edges of the Heat Shield Mat with foil tape or high temp silicone RTV. ProSeal is also a good choice to seal edges in areas where fuel or oil might soften RTV.
Heat Shield Mat is easy to cut, very flexible, and will last the life of your aircraft. It is waterproof and resistant to fuel and oil. It is approximately 1/16″ thick. It comes in a 24″ x 24″ (nominal dimensions) sheet that is large enough for all sorts of odd jobs. Our favorite use is to protect cowling from hot spots near your exhaust pipes.
This product withstands 1100°F of radiant heat and up to 450°F of direct heat.
Alan D. –
Used it to insulate the inside of my cowling against the heat from the exhaust system. Which was 1/2” away in some areas. It adheres well and is flexible enough to go around the curves. Worked great! Has survived over 135 hrs to date with no issues.