AOC Hydropel R037-YAA-35 Marine Tie-Coat Vinyl Ester vs. Scott Bader Crystic VE679PA Marine Infusion Skin VE
AOC Hydropel R037-YAA-35 Marine Tie-Coat Vinyl Ester (AOC Resins) and Scott Bader Crystic VE679PA Marine Infusion Skin VE (Scott Bader North America) achieve a 97.5% ASTM engineering compatibility score in Marine & Novolac Vinyl Ester Resins. Tensile strength delta is -1 MPa (-1.2%) and thermal HDT delta is -2 °C, making them qualified for direct drop-in substitution under standard cure schedules.
Side-by-Side ASTM Mechanical, Thermal, Rheological & Pricing Delta
| ASTM Parameter | A: AOC Hydropel R037-YAA-35 Marine Tie-Coat Vinyl Ester (AOC Resins) | B: Scott Bader Crystic VE679PA Marine Infusion Skin VE (Scott Bader North America) | Engineering Delta (A vs. B) |
|---|---|---|---|
| OEM Manufacturer & SKU | AOC Resins • AOC-HYD-R037 | Scott Bader North America • SCB-VE679PA | Cross-Brand OEM Equivalent |
| ASTM D638 Tensile Strength (MPa / PSI) | 82 MPa (11,893 psi) | 83 MPa (12,038 psi) | -1 MPa (-1.2 %) |
| ASTM D648 Heat Deflection Temp (HDT °C / °F) | 98 °C (208 °F) | 100 °C (212 °F) | -2 °C (Direct Thermal Match) |
| ASTM D790 Flexural Strength (MPa) | 144 MPa | 145 MPa | -1 MPa (-0.7 %) |
| ASTM D2583 Barcol Hardness | 38 | 38 | 0 Barcol |
| ASTM D2196 Brookfield Viscosity @ 25°C | 420 cPs | 260 cPs | +160 cPs (+61.5 %) |
| Gel Time @ 25°C (Minutes) | 28 min | 28 min | 0 min |
| ASTM D792 Specific Density (kg/m³) | 1130 kg/m³ | 1130 kg/m³ | 0 kg/m³ |
| US DOT 49 CFR & TDG Hazmat Class | Class 3 Flammable Liquid (UN1866) | Class 3 Flammable Liquid (UN1866) | Identical (UN1866) |
| Unit Price ($/kg USD) & Pack Price | $10.4/kg • $2,132 (205 kg Drum) | $10.9/kg • $2,235 (205 kg Drum) | -0.5 $/kg (-4.6 %) |
| US Stocking Warehouses | Tampa, FL • Houston, TX • Minneapolis, MN | Tampa, FL • Houston, TX • Minneapolis, MN | 1–3 Days LTL Dispatch |
Both matrices cross-link via free-radical polymerization using 1.25%–2.0% MEKP (Methyl Ethyl Ketone Peroxide, UN3105) or Cumene Hydroperoxide (CHP) with Cobalt Octoate promoter. Low-hydrogen-peroxide MEKP (e.g., Norox MEKP-925H) is recommended to eliminate micro-foaming.
Direct Drop-In Qualified: Thermal deflection (ASTM D648 HDT) differs by only 2 °C (98 °C vs. 100 °C). Existing mold cure and demold cycles can be maintained without thermal schedule modification.
Identical Hazmat Logistics Profile: Both SKUs ship under US DOT 49 CFR & Transport Canada TDG as Class 3 Flammable Liquid (UN Number: UN1866). Note 49 CFR § 177.848 segregation if ordering with Class 5.2 Organic Peroxides (UN3105).
Engineering FAQ: AOC Hydropel R037-YAA-35 Marine Tie-Coat Vinyl Ester vs. Scott Bader Crystic VE679PA Marine Infusion Skin VE
1. Is AOC Hydropel R037-YAA-35 Marine Tie-Coat Vinyl Ester a direct drop-in equivalent for Scott Bader Crystic VE679PA Marine Infusion Skin VE?▼
AOC Hydropel R037-YAA-35 Marine Tie-Coat Vinyl Ester (AOC Resins) and Scott Bader Crystic VE679PA Marine Infusion Skin VE (Scott Bader North America) achieve a 97.5% ASTM engineering compatibility score in Marine & Novolac Vinyl Ester Resins. Tensile strength delta is -1 MPa (-1.2%) and thermal HDT delta is -2 °C, making them qualified for direct drop-in substitution under standard cure schedules.
2. What is the ASTM D638 Tensile Strength and ASTM D648 HDT difference between AOC Hydropel R037-YAA-35 Marine Tie-Coat Vinyl Ester and Scott Bader Crystic VE679PA Marine Infusion Skin VE?▼
AOC Hydropel R037-YAA-35 Marine Tie-Coat Vinyl Ester (AOC Resins) delivers ASTM D638 Tensile Strength of 82 MPa (11,893 psi) and ASTM D648 HDT of 98 °C, whereas Scott Bader Crystic VE679PA Marine Infusion Skin VE (Scott Bader North America) delivers 83 MPa (12,038 psi) and HDT of 100 °C. The net delta is -1 MPa (-1.2 %) tensile and -2 °C HDT.
3. Do AOC Hydropel R037-YAA-35 Marine Tie-Coat Vinyl Ester and Scott Bader Crystic VE679PA Marine Infusion Skin VE use the same catalyst or hardener cure system?▼
Both matrices cross-link via free-radical polymerization using 1.25%–2.0% MEKP (Methyl Ethyl Ketone Peroxide, UN3105) or Cumene Hydroperoxide (CHP) with Cobalt Octoate promoter. Low-hydrogen-peroxide MEKP (e.g., Norox MEKP-925H) is recommended to eliminate micro-foaming. Direct Drop-In Qualified: Thermal deflection (ASTM D648 HDT) differs by only 2 °C (98 °C vs. 100 °C). Existing mold cure and demold cycles can be maintained without thermal schedule modification.
4. How do US DOT 49 CFR Hazmat shipping rules and B2B drum/pack prices compare between AOC Hydropel R037-YAA-35 Marine Tie-Coat Vinyl Ester and Scott Bader Crystic VE679PA Marine Infusion Skin VE?▼
Identical Hazmat Logistics Profile: Both SKUs ship under US DOT 49 CFR & Transport Canada TDG as Class 3 Flammable Liquid (UN Number: UN1866). Note 49 CFR § 177.848 segregation if ordering with Class 5.2 Organic Peroxides (UN3105). In US B2B distribution, AOC Hydropel R037-YAA-35 Marine Tie-Coat Vinyl Ester is priced at $2,132 per 205 kg Drum ($10.4/kg) vs. $2,235 per 205 kg Drum ($10.9/kg) for Scott Bader Crystic VE679PA Marine Infusion Skin VE (delta: -0.5 USD/kg).
Related Drop-In Comparisons in Marine & Novolac Vinyl Ester Resins
AOC Hydropel R037-YAA-35 Marine Tie-Coat Vinyl Ester (AOC Resins) and Scott Bader Crystic VE679PA Marine Infusion Skin VE (Scott Bader North America) 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).