3A Composites Airex T92.100 Structural PET Foam Core vs. Coosa Composites Bluewater 26 High-Density Urethane Transom Board
3A Composites Airex T92.100 Structural PET Foam Core (3A Composites) and Coosa Composites Bluewater 26 High-Density Urethane Transom Board (Coosa Composites (Pelham, AL)) achieve a 78.5% ASTM engineering compatibility score in Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa). Tensile strength delta is -12.2 MPa (-82.4%) and thermal HDT delta is +20 °C, making them interchangeable with post-cure temperature and viscosity flow adjustments.
Side-by-Side ASTM Mechanical, Thermal, Rheological & Pricing Delta
| ASTM Parameter | A: 3A Composites Airex T92.100 Structural PET Foam Core (3A Composites) | B: Coosa Composites Bluewater 26 High-Density Urethane Transom Board (Coosa Composites (Pelham, AL)) | Engineering Delta (A vs. B) |
|---|---|---|---|
| OEM Manufacturer & SKU | 3A Composites • 3AC-T92-100-20MM | Coosa Composites (Pelham, AL) • COO-BW26-1.5IN | Cross-Brand OEM Equivalent |
| ASTM D638 Tensile Strength (MPa / PSI) | 2.6 MPa (377 psi) | 14.8 MPa (2,147 psi) | -12.2 MPa (-82.4 %) |
| ASTM D648 Heat Deflection Temp (HDT °C / °F) | 135 °C (275 °F) | 115 °C (239 °F) | +20 °C (Verify Post-Cure) |
| ASTM D790 Flexural Strength (MPa) | 3.4 MPa | 28.5 MPa | -25.1 MPa (-88.1 %) |
| ASTM D2583 Barcol Hardness | N/A | N/A | N/A |
| ASTM D2196 Brookfield Viscosity @ 25°C | Solid Reinforcement / Core | Solid Reinforcement / Core | Solid State |
| Gel Time @ 25°C (Minutes) | N/A | N/A | N/A |
| ASTM D792 Specific Density (kg/m³) | 100 kg/m³ | 416 kg/m³ | -316 kg/m³ |
| US DOT 49 CFR & TDG Hazmat Class | Non-Regulated (N/A) | Non-Regulated Solid Polymer (N/A) | Identical (N/A) |
| Unit Price ($/kg USD) & Pack Price | $18.2/kg • $138 (Sheet 1220x2440x20mm (Grooved & Perforated)) | $22.8/kg • $1,094 (Crate of 10 Grooved & Perforated Sheets) | -4.6 $/kg (-20.2 %) |
| US Stocking Warehouses | Statesville, NC • Tampa, FL • Minneapolis, 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 20 °C (135 °C vs. 115 °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-Regulated (UN Number: N/A). Note 49 CFR § 177.848 segregation if ordering with Class 5.2 Organic Peroxides (UN3105).
Engineering FAQ: 3A Composites Airex T92.100 Structural PET Foam Core vs. Coosa Composites Bluewater 26 High-Density Urethane Transom Board
1. Is 3A Composites Airex T92.100 Structural PET Foam Core a direct drop-in equivalent for Coosa Composites Bluewater 26 High-Density Urethane Transom Board?▼
3A Composites Airex T92.100 Structural PET Foam Core (3A Composites) and Coosa Composites Bluewater 26 High-Density Urethane Transom Board (Coosa Composites (Pelham, AL)) achieve a 78.5% ASTM engineering compatibility score in Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa). Tensile strength delta is -12.2 MPa (-82.4%) and thermal HDT delta is +20 °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 3A Composites Airex T92.100 Structural PET Foam Core and Coosa Composites Bluewater 26 High-Density Urethane Transom Board?▼
3A Composites Airex T92.100 Structural PET Foam Core (3A Composites) delivers ASTM D638 Tensile Strength of 2.6 MPa (377 psi) and ASTM D648 HDT of 135 °C, whereas Coosa Composites Bluewater 26 High-Density Urethane Transom Board (Coosa Composites (Pelham, AL)) delivers 14.8 MPa (2,147 psi) and HDT of 115 °C. The net delta is -12.2 MPa (-82.4 %) tensile and +20 °C HDT.
3. Do 3A Composites Airex T92.100 Structural PET Foam Core and Coosa Composites Bluewater 26 High-Density Urethane Transom Board 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 20 °C (135 °C vs. 115 °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 3A Composites Airex T92.100 Structural PET Foam Core and Coosa Composites Bluewater 26 High-Density Urethane Transom Board?▼
Identical Hazmat Logistics Profile: Both SKUs ship under US DOT 49 CFR & Transport Canada TDG as Non-Regulated (UN Number: N/A). Note 49 CFR § 177.848 segregation if ordering with Class 5.2 Organic Peroxides (UN3105). In US B2B distribution, 3A Composites Airex T92.100 Structural PET Foam Core is priced at $138 per Sheet 1220x2440x20mm (Grooved & Perforated) ($18.2/kg) vs. $1,094 per Crate of 10 Grooved & Perforated Sheets ($22.8/kg) for Coosa Composites Bluewater 26 High-Density Urethane Transom Board (delta: -4.6 USD/kg).
Related Drop-In Comparisons in Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa)
3A Composites Airex T92.100 Structural PET Foam Core (3A Composites) and Coosa Composites Bluewater 26 High-Density Urethane Transom Board (Coosa Composites (Pelham, AL)) 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).