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I tried my hand at a DIY Spray Foam kit for my Ferrocement House Project and failed miserably. Closed cell spray foam is a perfect match, a waterproof insulative membrane in a can, sounds like a match made in heaven for a ferrocement house that you want to bury. In this video I explore what went wrong to make this crunchy foam with no strength or ability to adhere to the substrate. I think it was caused by spraying on a cool day, the substrate and the chemical temperatures were within spec but the air temperatures were kind of low. I think the chemical components lost their heat while traveling through the lines. I imagine the thicker B component thickened up throwing off the mix ratio causing a A component rich foam.
At 11:25 I use a clip from@SprayJones Here is a link to his video and you can find the segment I used at three minutes and fifty seconds.
• 4 Pitfalls Of Spray Fo...
Link to my full Ferrocement Playlist:
• Ferrocement
Link to Ferrocement House Build part 13:
• Ferrocement House Proj...
Link to Ferrocement House Build part 12:
• Ferrocement House Proj...
Thanks for watching.