Item Price Qty
3/8 inch 32"x48" Sheet
Quantity Discounts
6+ $ 54.95  
11+ $ 49.95  
1/2 inch 32"x48" Sheet
Quantity Discounts
6+ $ 64.95  
11+ $ 59.95  

Highest-Strength Sandwich Core, Form with Heat

Looking to make a strong composite part? DIAB closed cell vinyl foam is an ideal sandwich core where ultimate laminate strength is critical. With compressive strengths over 200 psi, the 5 lb./cubic foot foam offers more strength to a laminate than other lightweight core materials, like honeycomb, while adding only slightly more weight. Because it is still significantly lighter than other traditional options, 5 lb. foam is used extensively in high-strength structural building, aerospace, and design applications.

  • Extremely easy to handle; cut, shape, and thermoform with a heat gun or oven
  • Used to build bulk rapidly; bond individual sheets to provide additional thickness in target areas
  • Insulative and water resistant
  • Compatible with epoxy, polyester, and vinyl ester resins

Many customers experiment with various thicknesses and densities of foam to find the correct balance between part weight and strength. However, each thickness is well suited for a number of traditional applications:

  • 38" thick foam offers significant strength and impact resistance to a laminate, and is commonly used for exterior vehicle structures, boat hulls, and bulkheads.
  • 12" thick foam offers the highest possible strength to a composite as a sandwich core; applications include load-bearing structural supports, structural walls, unsupported flooring, and other high strength parts.

DIAB Divinycell H80 5 lb. density sheets measure 32" X 48".

This item, when ordered alone, will typically ship in a longer box. Where possible, we will combine ordered items to reduce the number of boxes shipped.
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Boat Racer Mod/Pro
Nov 29, 2016  |  By Chip Solms
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Great web site, Fibre Glast product Video's are accurate and helpful with deciding applications.

Jul 24, 2016  |  By Jim Shipstead
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Have never used 5# foam before. Much more flexible than expexted, so I'm adjusting places to use it. Really like the campatibility w/ epoxy resin. Still searching for a foam that is as stiff as plywood and machinable, but at a fraction of the weight of plywood.

Vinyl Foam: Divinycell 5 lb. Density This item is sold by the unit. Quantity discounts per sheet are available when five or more sheets are ordered at one time.