What is the proper term for the type foam used for the bumpers? I know its not polystyrene, seems that is what everyone want to sell me though.


Thanks

For Foam Bumpers:
What to look for in Foam:
Sides
Extra Firm (77) Closed Cell
(2.0 lb) in 15.500"L x 3.000"W x 2.000"H rectangles

Front and rear
Extra Firm (77) Closed Cell
(2.0 lb) in 18.500"L x 6.000"W x 2.000"H rectangles

Also, You can contact any of the 1/4 scale suppliers, and they have a little different pre-cut foam to fit your ride. Check out the links on the QSAC website for suppliers.

Thanks for the reply Jim, but I need to know what type of foam they call it. I can find a lot of different foam types at that density but I need the exact name. I have a plan/project that requires a larger piece than what the manufacturers are selling.

I haver had great success using archery target found at most sporting goods stores! Yes It's white but can be colored to match whatever color you desire by coating with rubber tool coatings found at Home Depot! The coating helps preserve it longer after crashes! It forms easy by sanding on a belt sander but messy, and cuts easy on a band saw!

Rattler...

Closed Cell FoamDescription: Non-water absorbent, non-biodegradable, floats, great tensile strength, impervious to petroleum. Used in exercise mats, high impact aerobic equipment, mechanic's box lining (.25" to .50" thick). Good thermal insulator (hot tub covers). Specifications:
Weight:2.0 lb. per cubic ft.Density Range, pcf:
(ASTM D1667) 1.5 - 2.5 Compressive Strength, psi:
(ASTM D1056)
@25% Deflection 5 - 8
@50% Deflection 14 - 18
----------------------------
Compression Set: 20% Max
% of Original Thickness
(ASTM D395)
---------------------------
Tensile Strength, psi: 30 - 50
(ASTM D1564)
---------------------------
Elongation,% to Break:130 - 180
(ASTM D1564)
---------------------------
Tear Resistance, lb/in:7 - 13
(ADTM D624)
---------------------------
Water Absorbtion, lb/ft²
of Cut Surface, Max: 0.07
(Mil P-40619)
---------------------------
Bouyancy, lb/cu. ft.: 55
(Mil P-40619) (USCG)
---------------------------
Temperature Range F: -110 to +225

http://foamonline.com/images/types/closed-cell-foam.jpg

Jim, after reading that last post, I know which style foam that is. Its the same that I am looking for. I have read the same specs on a packing supply website while searching. Now I just need to find the cheapest source.

Daniel

No problem, there is a place called Foam Online. That is where I've shoped before., But again, there are some great QSAC parteners that know more about the supply end of it than i do...

No problem, there is a place called Foam Online. That is where I've shoped before., But again, there are some great QSAC parteners that know more about the supply end of it than i do...

You can try McMaster-Carr, just google them, they have a lot of stuff you may like.

How much do you need. I have it in 6"x18", 7"x18", and 3"x16" $12.00 for the front or rear and $6.00 for the side.Jim, after reading that last post, I know which style foam that is. Its the same that I am looking for. I have read the same specs on a packing supply website while searching. Now I just need to find the cheapest source.

Daniel

Thanks Jeff but I have a project thats a little larger than those sizes, but I will be calling you next week sometime for a few items to get ready for the season.

Daniel

I buy this stuff by the sheet. Let me know what size you need and I will let you know a Price on the Foam. Thanks DanielThanks Jeff but I have a project thats a little larger than those sizes, but I will be calling you next week sometime for a few items to get ready for the season.

Daniel