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Two-component foam systems consist of an “A” component and a “B” component. These two components mix in the nozzle of the pattented Handi-Gun and the resulting foam cures much more quickly than one-component foams. Handi-Foam Two-component Foams are available in a variety of densities. Two-component foam systems will expand immediately upon chemical reaction of A-component and B-component to a final volume that is 3 to 5 times the dispensed volume in typical applications and may be as much as 8 times the dispensed volume in specific applications depending on various factors such as cavity size ambient conditions etc. Kit Contains 205 Square Feet at 1″ Thick The foam will cure to a semi-rigid closed cell foam upon the chemical reaction of component A polymeric isocyanate with component B a polyol blend containing certain additives and carries an R-Value of 6 to 7 per inch .02 w/m.k. Handi-Foam Two-Component Foam is tack free in less than 60 seconds is cuttable in 2-5 minutes and fully cured in just 60 minutes. Cured foam can be trimmed sanded and/or painted. Consists of two canisters dispensing system two nozzles Density = 1.75lbs per cubic foot 28kg per cubic meter Contains no formaldehyde 2 Component foam is tack free in 30 seconds cuttable in 3-4 minutes and fully cured in 1 hour.