- Feb 11, 2010
- 149
I spoke with a foam contractor in the area today. He said for the size job I have (75'), it would not be cost effective to have him come out and foam my lines in the ground. He said it would be about $485 for him to bring the rig out and do it. He actually recommended buying one of the Tiger Foam kits and doing it myself.
Now, I'm thinking to myself, but if I dug a trench for my lines and raised them off of the floor of the trench with foam blocks, why do I need to SPRAY the foam? Why can't I mix two part pourable foam and pour it around my lines? It would take longer, but a 40 cu ft kit is about $250 vs. $600+ for a 50 cu ft spray foam. One concern I do have, however, is that one marine supply website I was reading said their 2 LB polyurethane foam is not 100% waterproof and constant submersion in water would allow it to get wet. Isn't this stuff the same as sprayed polyurethane with the exception that it's applied differently?
Now, I'm thinking to myself, but if I dug a trench for my lines and raised them off of the floor of the trench with foam blocks, why do I need to SPRAY the foam? Why can't I mix two part pourable foam and pour it around my lines? It would take longer, but a 40 cu ft kit is about $250 vs. $600+ for a 50 cu ft spray foam. One concern I do have, however, is that one marine supply website I was reading said their 2 LB polyurethane foam is not 100% waterproof and constant submersion in water would allow it to get wet. Isn't this stuff the same as sprayed polyurethane with the exception that it's applied differently?