Gridgway Posted May 20, 2007 Share Posted May 20, 2007 I made a back booster from expanding foam a couple of months ago for my son to drive the caterham. We got it out today to finish the taping. When we tried it in the car it has clearly shrunk by a huge amount. When made it went to the side bolsters of the seat. Now there is a good inch gap on both sides. Can it have shrunk? The foam expanded ok but was a bit old. Graham Link to comment Share on other sites More sharing options...
Beelzebub Posted May 20, 2007 Share Posted May 20, 2007 Try doing a search of the archives. Someone recently did a bit of research on the foam & posted all the bumph on here. Apparently temps & quantities are crucial to prevent shrinkage D. Link to comment Share on other sites More sharing options...
Beelzebub Posted May 20, 2007 Share Posted May 20, 2007 Thread here courtesy of OBNS Link to comment Share on other sites More sharing options...
Gridgway Posted May 20, 2007 Author Share Posted May 20, 2007 excellent! Ordered some new foam to have another go. Will have to go to homebase to get a mixing thing to go in the drill. Thanks Graham Link to comment Share on other sites More sharing options...
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