Thread: C5 gto
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Old 01-11-2011, 04:18 PM
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heinke heinke is offline
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Default Insulation

Peter,
Thanks for bringing up insulation safety concerns.

The material I have is RMax Thermosheath-3. Turns out its made from polyisocyanurate foam (covered with aluminum foil) and is not urethane. I'm not a chemist so I don't really know what polyisocyanurate really is. I pulled the MSDS (http://www.rmaxinc.com/downloads/MSD...masheath-3.pdf) and under Health Hazards section it says, "No know acute or chronic hazards. Dusts generated from product are nuisance dusts. This product is not considered to be a carcinogen." Under Reactivity Data section it says, "Material is stable. Hazardous polymerization cannot occur." It also says, "Conditions to Avoid: Sources of flame and ignition."

The product data sheet (http://www.rmaxinc.com/downloads/Dat...rmasheath3.pdf) says it has service temperatures up to 250 degrees Fahrenheit and water absorption at <1% by volume. It also says it's non-hazardous waste that can be disposed of in a landfill.

From what information the manufacturer provides, it really sounds like fairly benign stuff. The main question I'm now asking myself is whether it would ever be exposed to greater than 250 degrees when behind .040 aluminum sheet?

Does anyone else have information or experience that would say if polyisocyanurate foam is unsafe to use in the application where I have it?
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