Archive for November, 2009

Polyurethane foam insulation gun jammed. Is there a way to fix it?

I have a polyurethane foam insulation gun like this:

http://www.conservationtechnology.com/images/Building/SealantsGun+Foam.gif

I left the insulation can attached to it for months and the foam dried up inside of the barrel. Is there a way I can clear it out or is the gun trash now?

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Any tech difference if i use 2 layers of75mm thick rockwool instead of 150 mm 1 layer in oven hot insulation?

for oven OT 100 deg.c rockwool 150 mmof 128 kg/m3 density has been recommended. if i use 75mm in two layers instead of 150 mm single layer, any technical difference, how.

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How To Take off Foam Insulation?

I put foam insulation in the cracks around my windows a few months ago,but what’s a way that I can get it off without damaging my windows? I peeled some of the foam bubble that formed but there’s still residue left on the window.

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