Divinycell® H80 Structural PVC Foam vs. Gurit Kerdyn Green 115 Recyclable Structural PET Core
Divinycell® H80 Structural PVC Foam (Diab Group) and Gurit Kerdyn Green 115 Recyclable Structural PET Core (Gurit) achieve a 81.4% ASTM engineering compatibility score in Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa). Tensile strength delta is -0.4 MPa (-13.8%) and thermal HDT delta is -28 °C, making them interchangeable with post-cure temperature and viscosity flow adjustments.
Side-by-Side ASTM Mechanical, Thermal, Rheological & Pricing Delta
| ASTM Parameter | A: Divinycell® H80 Structural PVC Foam (Diab Group) | B: Gurit Kerdyn Green 115 Recyclable Structural PET Core (Gurit) | Engineering Delta (A vs. B) |
|---|---|---|---|
| OEM Manufacturer & SKU | Diab Group • DIAB-H80-34IN-GS | Gurit • GUR-KER115-20MM | Cross-Brand OEM Equivalent |
| ASTM D638 Tensile Strength (MPa / PSI) | 2.5 MPa (362 psi) | 2.9 MPa (421 psi) | -0.4 MPa (-13.8 %) |
| ASTM D648 Heat Deflection Temp (HDT °C / °F) | 80 °C (176 °F) | 108 °C (226 °F) | -28 °C (Verify Post-Cure) |
| ASTM D790 Flexural Strength (MPa) | 3.6 MPa | 3.6 MPa | 0 MPa (0 %) |
| ASTM D2583 Barcol Hardness | N/A | N/A | N/A |
| ASTM D2196 Brookfield Viscosity @ 25°C | 5 cPs | Solid Reinforcement / Core | Solid State |
| Gel Time @ 25°C (Minutes) | 35 min | N/A | N/A |
| ASTM D792 Specific Density (kg/m³) | 1120 kg/m³ | 115 kg/m³ | +1005 kg/m³ |
| US DOT 49 CFR & TDG Hazmat Class | Non-Hazmat Standard Freight (N/A) | Non-Regulated Solid Polymer (N/A) | Identical (N/A) |
| Unit Price ($/kg USD) & Pack Price | $0.71/kg • $142 (Sheet (48 x 96 in)) | $19.2/kg • $922 (Crate of 10 Grooved & Perforated Sheets) | -18.49 $/kg (-96.3 %) |
| US Stocking Warehouses | FL • NC • ME • CA | DeSoto, TX • Statesville, NC • Tampa, FL | 1–3 Days LTL Dispatch |
Companion process stack: Structural Core-Bonding Putty (0.55 kg/m² kerf fill) + Marine Vinyl Ester or Infusion Epoxy Matrix. Follow CORE BEDDING & RESIN UPTAKE: Grid-scored (GS) or grooved/perforated (GP) sheets require ~0.55 kg/m² extra resin for kerf/groove filling or a dedicated structural core-bonding putty.
Post-Cure Schedule Adjustment Advised: ASTM D648 HDT differs by 28 °C (80 °C vs. 108 °C). For elevated-temperature tooling or dark-colored marine hulls, perform a 4–6 hour post-cure ramp at 60–80 °C (140–176 °F) to lock in full cross-link density.
Identical Hazmat Logistics Profile: Both SKUs ship under US DOT 49 CFR & Transport Canada TDG as Non-Hazmat Standard Freight (UN Number: N/A). Note 49 CFR § 177.848 segregation if ordering with Class 5.2 Organic Peroxides (UN3105).
Engineering FAQ: Divinycell® H80 Structural PVC Foam vs. Gurit Kerdyn Green 115 Recyclable Structural PET Core
1. Is Divinycell® H80 Structural PVC Foam a direct drop-in equivalent for Gurit Kerdyn Green 115 Recyclable Structural PET Core?▼
Divinycell® H80 Structural PVC Foam (Diab Group) and Gurit Kerdyn Green 115 Recyclable Structural PET Core (Gurit) achieve a 81.4% ASTM engineering compatibility score in Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa). Tensile strength delta is -0.4 MPa (-13.8%) and thermal HDT delta is -28 °C, making them interchangeable with post-cure temperature and viscosity flow adjustments.
2. What is the ASTM D638 Tensile Strength and ASTM D648 HDT difference between Divinycell® H80 Structural PVC Foam and Gurit Kerdyn Green 115 Recyclable Structural PET Core?▼
Divinycell® H80 Structural PVC Foam (Diab Group) delivers ASTM D638 Tensile Strength of 2.5 MPa (362 psi) and ASTM D648 HDT of 80 °C, whereas Gurit Kerdyn Green 115 Recyclable Structural PET Core (Gurit) delivers 2.9 MPa (421 psi) and HDT of 108 °C. The net delta is -0.4 MPa (-13.8 %) tensile and -28 °C HDT.
3. Do Divinycell® H80 Structural PVC Foam and Gurit Kerdyn Green 115 Recyclable Structural PET Core use the same catalyst or hardener cure system?▼
Companion process stack: Structural Core-Bonding Putty (0.55 kg/m² kerf fill) + Marine Vinyl Ester or Infusion Epoxy Matrix. Follow CORE BEDDING & RESIN UPTAKE: Grid-scored (GS) or grooved/perforated (GP) sheets require ~0.55 kg/m² extra resin for kerf/groove filling or a dedicated structural core-bonding putty. Post-Cure Schedule Adjustment Advised: ASTM D648 HDT differs by 28 °C (80 °C vs. 108 °C). For elevated-temperature tooling or dark-colored marine hulls, perform a 4–6 hour post-cure ramp at 60–80 °C (140–176 °F) to lock in full cross-link density.
4. How do US DOT 49 CFR Hazmat shipping rules and B2B drum/pack prices compare between Divinycell® H80 Structural PVC Foam and Gurit Kerdyn Green 115 Recyclable Structural PET Core?▼
Identical Hazmat Logistics Profile: Both SKUs ship under US DOT 49 CFR & Transport Canada TDG as Non-Hazmat Standard Freight (UN Number: N/A). Note 49 CFR § 177.848 segregation if ordering with Class 5.2 Organic Peroxides (UN3105). In US B2B distribution, Divinycell® H80 Structural PVC Foam is priced at $142 per Sheet (48 x 96 in) ($0.71/kg) vs. $922 per Crate of 10 Grooved & Perforated Sheets ($19.2/kg) for Gurit Kerdyn Green 115 Recyclable Structural PET Core (delta: -18.49 USD/kg).
Related Drop-In Comparisons in Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa)
Divinycell® H80 Structural PVC Foam (Diab Group) and Gurit Kerdyn Green 115 Recyclable Structural PET Core (Gurit) are trademarks of their respective owners. CompositeMatrix Technologies Inc. is an independent North American B2B composite material intelligence registry; comparative ASTM D638, D648, D790, D2583, and D2196 figures are presented under the US legal doctrine of Nominative Fair Use (Lanham Act, 15 U.S.C. § 1125) and Feist Publications, Inc. v. Rural Telephone Service Co. (499 U.S. 340) for scientific and industrial cross-reference. Cure schedules, exotherm behavior, and laminate qualification must be verified by a licensed Naval Architect or Professional Engineer (PE) against current manufacturer batch Technical Data Sheets (TDS) and Safety Data Sheets (SDS).