Baltek® SB.100 End-Grain Balsa vs. Diab Divinycell HT90 Aerospace Prepreg Cure PVC Core
Baltek® SB.100 End-Grain Balsa (3A Composites) and Diab Divinycell HT90 Aerospace Prepreg Cure PVC Core (Diab Group) achieve a 79.8% ASTM engineering compatibility score in Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa). Tensile strength delta is +10 MPa (+322.6%) and thermal HDT delta is +8.9 °C, making them interchangeable with post-cure temperature and viscosity flow adjustments.
Side-by-Side ASTM Mechanical, Thermal, Rheological & Pricing Delta
| ASTM Parameter | A: Baltek® SB.100 End-Grain Balsa (3A Composites) | B: Diab Divinycell HT90 Aerospace Prepreg Cure PVC Core (Diab Group) | Engineering Delta (A vs. B) |
|---|---|---|---|
| OEM Manufacturer & SKU | 3A Composites • 3AC-SB100-34IN | Diab Group • DIAB-HT90-12MM | Cross-Brand OEM Equivalent |
| ASTM D638 Tensile Strength (MPa / PSI) | 13.1 MPa (1,900 psi) | 3.1 MPa (450 psi) | +10 MPa (+322.6 %) |
| ASTM D648 Heat Deflection Temp (HDT °C / °F) | 148.9 °C (300 °F) | 140 °C (284 °F) | +8.9 °C (Verify Post-Cure) |
| ASTM D790 Flexural Strength (MPa) | 19 MPa | 4.2 MPa | +14.8 MPa (+352.4 %) |
| ASTM D2583 Barcol Hardness | N/A | N/A | N/A |
| ASTM D2196 Brookfield Viscosity @ 25°C | 9 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 | 90 kg/m³ | +1030 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 | $0.59/kg • $118 (ContourKore Sheet) | $36.5/kg • $1,752 (Crate of 10 Grooved & Perforated Sheets) | -35.91 $/kg (-98.4 %) |
| US Stocking Warehouses | FL • TX • LA • MN | 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 8.9 °C (148.9 °C vs. 140 °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: Baltek® SB.100 End-Grain Balsa vs. Diab Divinycell HT90 Aerospace Prepreg Cure PVC Core
1. Is Baltek® SB.100 End-Grain Balsa a direct drop-in equivalent for Diab Divinycell HT90 Aerospace Prepreg Cure PVC Core?▼
Baltek® SB.100 End-Grain Balsa (3A Composites) and Diab Divinycell HT90 Aerospace Prepreg Cure PVC Core (Diab Group) achieve a 79.8% ASTM engineering compatibility score in Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa). Tensile strength delta is +10 MPa (+322.6%) and thermal HDT delta is +8.9 °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 Baltek® SB.100 End-Grain Balsa and Diab Divinycell HT90 Aerospace Prepreg Cure PVC Core?▼
Baltek® SB.100 End-Grain Balsa (3A Composites) delivers ASTM D638 Tensile Strength of 13.1 MPa (1,900 psi) and ASTM D648 HDT of 148.9 °C, whereas Diab Divinycell HT90 Aerospace Prepreg Cure PVC Core (Diab Group) delivers 3.1 MPa (450 psi) and HDT of 140 °C. The net delta is +10 MPa (+322.6 %) tensile and +8.9 °C HDT.
3. Do Baltek® SB.100 End-Grain Balsa and Diab Divinycell HT90 Aerospace Prepreg Cure PVC 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 8.9 °C (148.9 °C vs. 140 °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 Baltek® SB.100 End-Grain Balsa and Diab Divinycell HT90 Aerospace Prepreg Cure PVC 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, Baltek® SB.100 End-Grain Balsa is priced at $118 per ContourKore Sheet ($0.59/kg) vs. $1,752 per Crate of 10 Grooved & Perforated Sheets ($36.5/kg) for Diab Divinycell HT90 Aerospace Prepreg Cure PVC Core (delta: -35.91 USD/kg).
Related Drop-In Comparisons in Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa)
Baltek® SB.100 End-Grain Balsa (3A Composites) and Diab Divinycell HT90 Aerospace Prepreg Cure PVC Core (Diab Group) 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).