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FoamLok 2000 is a 2 LB density closed cell foam that has almost no vapor or air permeability. The product in and of itself is considered a vapor barrier by Code.  FL2000 is a 2-part spray applied polyurethane cellular foam plastic.  The product is sprayed on as a liquid, expands, and cures within minutes.  The major differences between FL2000 closed cell foam and FL 500 open cell foam are as follows:

• Aged R-value of 6.2 per inch of depth (open cell is 3.9 per inch)
• Vapor Barrier (Open Cell allows vapor to move through in greater amounts)
• Structural (open cell foam has the consistency of angel food cake)
• More Expensive (more materials are needed to produce an "R" of Closed Cell)

Although FL2000 is suitable for almost any use, our typical installs of this product include:

• Commercial coolers and freezers where moisture control is difficult (high vapor drive)
• Older structures where high R-value is needed in a limited space
• Crawl spaces where moisture is significant
• Areas where foam may take a physical beating and strength is needed

Our paper Open vs. Closed Cell Foam is a great source for an even more detailed comparison of the products.  Remember, if you're confused, just contact us.  We work with these products every day!