So I have a picnic box that turns out to have lots of air space in it rather than insulation, it does however easily dismantle into the inner and outer shell.
I want to insulate it with a can of expanding foam, but haven't used this stuff before.......
1. What is the working time, I want to squirt it all over the inside of the outer shell then press the inner shell into it, I imagine it stays soft and malleable for several minutes, is this correct?
2. The space between the inner and outer shell is about 20-25mm, I imagine I want to create lines of insulation "so far" apart, so that when I fit it all together those lines expand and fill the gaps up, to much squirty insulation and I guess it will push the thing apart as it expands? Is that right, how far should the lines be apart from each other?
I want to insulate it with a can of expanding foam, but haven't used this stuff before.......
1. What is the working time, I want to squirt it all over the inside of the outer shell then press the inner shell into it, I imagine it stays soft and malleable for several minutes, is this correct?
2. The space between the inner and outer shell is about 20-25mm, I imagine I want to create lines of insulation "so far" apart, so that when I fit it all together those lines expand and fill the gaps up, to much squirty insulation and I guess it will push the thing apart as it expands? Is that right, how far should the lines be apart from each other?