hallo,
dann halten wir dies (Quelle rcgroups usa) mal so fest:
Elapor
MultiPlex Easy Star
MultiPlex Easy Glider
Magister, MiniMag, Space Scooter, Twin Star II, just about everything from Multiplex
This type of foam is characterized by rather large 'cells'. It also has a slightly 'greasy' feel to it.
EPS Expanded PolyStyrene
GWS E-Starter
GWS Formosa I
GWS Pico Tiger Moth
GWS Tiger Moth 400
GWS DeHavilland Beaver
GWS PT-17 Stearman
Fine-beaded cells; EPS foam is very prone to hanger rash but is supposedly quite good at absorbing bad landings. More major crashes usually require collecting all the pieces in a plastic bag, but it's usually possible to just reassemble the jigsaw of pieces with glue. Sometimes referred to as 'beer cooler' foam.
Regular Styrofoam
Mountain Models MagPie
Mountain Models MagPie AP (Aerial Photography)
This is the unexpanded PolyStyrene. Very crumbly, with no defined 'cell' structure. This type of styrofoam MUST be protected from literally crumbling into thousands of tiny chunks of styrofoam by wrapping with tape. Once wrapped, however, it becomes a very strong, durable, and light material!
EPO - Expanded PolyOlefin
GWS AT-6 Texan
GWS F-15
GWS FW-190
GWS P-40
This is 'supposedly' identical to the Elapor foam of which the MultiPlex Easy Star is made. GWS is starting to make their newest planes of this material. Large beaded cells, and with the same 'greasy' feel to it.
EPP - Expanded PolyPropylene
AeroHog AeroAce
EPP foam doesn't dent or break. It has a 'spongy' quality to it, so on impact it compresses and pops back to shape.
Z-Foam
HobbyZone Super Cub
ParkZone F-27C
ParkZone T-28 Trojan
jürgen
PS: das wäre was für's wiki, oder?
Similar in appearance and large cell size to Elapor and EPO, but without the 'greasy' feel to it. It appears to me that it's not quite as elastic as Elapor and EPO; in other words, a bit more brittle.