Originally Posted by shastamike
Is EPS foam what the UMX Sbach and CC are made of mister answer guy?
EPS or expanded polystyrene IS the stiff beer cooler type of foam,, EPP or expended polypropylene is the more spongy type of foam found on some of the bigger parkzone planes,, it typically has a little more give than breaking than EPS but in general EPS is usually a little lighter for a given volume. Then there is EPO or expanded polyolyfin ( not sure of spelling on that one ) some people feel that EPO is best of both worlds,, its has some of the give of EPP but with weight somewhat like EPS, also EPO tends to have a nice smooth surface finish
And yes the CC and Sbach are EPS, as are the 300 zero and p-40,, I'm not quite sure but I believe even EPO is still heavier than EPS