in case your wondering,I'm talking about the same foam rubber "cups" with sports logos or other stuff on it that people use to keep their beverage cold when tail gatting at big football games.
2007-10-28 14:08:31 · 1 answers · asked by Joe Cool 1 in Science & Mathematics ➔ Other - Science
It is hard to find a comparison table.
This site
http://www.healthgoods.com/Education/healthy_home_information/Building_Design_and_Construction/foam_board.htm
says that polyurethane foam has an R value of 7-8 per inch. Another site claims that their latex foam has the highest of all foams, but doesn't give it.
This site
http://www.canadianhomeworkshop.com/diy/know_insulation3.shtml
says urethane has the higher 5 vs 4.5 for latex, but they are talking about rigid out of a can.
The things you are talking about, soft urethane and soft latex, the density of the material is probably a bigger factor than the natural properties.
2007-10-28 17:01:18 · answer #1 · answered by Mike1942f 7 · 0⤊ 0⤋