Divinycell H80 is a closed-cell PVC foam core sheet for sandwich composite parts where strength matters. At 5 lb per cubic foot it has compressive strength over 200 psi, giving a laminate more support than honeycomb cores while adding only modest weight. It cuts, shapes and thermoforms with a heat gun or oven, bonds with epoxy, polyester and vinyl ester, and resists water. It suits boat builders, aerospace and structural fabricators, and makers who need a stiff core rather than the lightest one.
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Lowest price we've seen: $123.60 on Nov 12 at Fiberglass Supply Depot. Tracked across 1 store since Nov 12.
Rated 4.6 out of 5 across 17 ratings. Buyers treat it as a dependable structural core and value how easily it shapes and bonds.
Divinycell is a closed cell vinyl foam made by DIAB for use as a sandwich core in composite parts where laminate strength is critical. This 5 lb. per cubic foot grade (Divinycell H80) has a compressive strength over 200 psi. It adds more strength to a laminate than lightweight cores like honeycomb, and only slightly more weight.
The foam is still much lighter than other traditional core options. It is used extensively in high-strength structural building, aerospace, and design applications. Sheets can be bonded together to build thickness quickly in target areas.
The foam can be cut, shaped, and thermoformed with a heat gun or oven. It is insulative and water resistant. It is compatible with epoxy, polyester, and vinyl ester resins.
