Interplastic CoREZYN COR75-AQ-010 Lloyd's Marine Iso Polyester vs. Scott Bader Crystic 489PA Isophthalic Marine Hull Polyester
Interplastic CoREZYN COR75-AQ-010 Lloyd's Marine Iso Polyester (Interplastic Corp) and Scott Bader Crystic 489PA Isophthalic Marine Hull Polyester (Scott Bader North America) achieve a 68% ASTM engineering compatibility score in Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa). Tensile strength delta is +3 MPa (+4.2%) and thermal HDT delta is +4 °C, making them interchangeable with post-cure temperature and viscosity flow adjustments.
Side-by-Side ASTM Mechanical, Thermal, Rheological & Pricing Delta
| ASTM Parameter | A: Interplastic CoREZYN COR75-AQ-010 Lloyd's Marine Iso Polyester (Interplastic Corp) | B: Scott Bader Crystic 489PA Isophthalic Marine Hull Polyester (Scott Bader North America) | Engineering Delta (A vs. B) |
|---|---|---|---|
| OEM Manufacturer & SKU | Interplastic Corp • IPC-COR75AQ | Scott Bader North America • SCB-CRY489PA | Cross-Brand OEM Equivalent |
| ASTM D638 Tensile Strength (MPa / PSI) | 74 MPa (10,733 psi) | 71 MPa (10,298 psi) | +3 MPa (+4.2 %) |
| ASTM D648 Heat Deflection Temp (HDT °C / °F) | 94 °C (201 °F) | 90 °C (194 °F) | +4 °C (Direct Thermal Match) |
| ASTM D790 Flexural Strength (MPa) | 122 MPa | 119 MPa | +3 MPa (+2.5 %) |
| ASTM D2583 Barcol Hardness | 40 | 40 | 0 Barcol |
| ASTM D2196 Brookfield Viscosity @ 25°C | 490 cPs | 450 cPs | +40 cPs (+8.9 %) |
| Gel Time @ 25°C (Minutes) | 24 min | 24 min | 0 min |
| ASTM D792 Specific Density (kg/m³) | 1115 kg/m³ | 1115 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 | $7.4/kg • $1,665 (225 kg Steel Drum) | $7.3/kg • $1,643 (225 kg Steel Drum) | +0.1 $/kg (+1.4 %) |
| US Stocking Warehouses | Lakeland, FL • Houston, TX • Minneapolis, MN | Lakeland, FL • Houston, TX • Minneapolis, MN | 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.
Direct Drop-In Qualified: Thermal deflection (ASTM D648 HDT) differs by only 4 °C (94 °C vs. 90 °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: Interplastic CoREZYN COR75-AQ-010 Lloyd's Marine Iso Polyester vs. Scott Bader Crystic 489PA Isophthalic Marine Hull Polyester
1. Is Interplastic CoREZYN COR75-AQ-010 Lloyd's Marine Iso Polyester a direct drop-in equivalent for Scott Bader Crystic 489PA Isophthalic Marine Hull Polyester?▼
Interplastic CoREZYN COR75-AQ-010 Lloyd's Marine Iso Polyester (Interplastic Corp) and Scott Bader Crystic 489PA Isophthalic Marine Hull Polyester (Scott Bader North America) achieve a 68% ASTM engineering compatibility score in Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa). Tensile strength delta is +3 MPa (+4.2%) and thermal HDT delta is +4 °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 Interplastic CoREZYN COR75-AQ-010 Lloyd's Marine Iso Polyester and Scott Bader Crystic 489PA Isophthalic Marine Hull Polyester?▼
Interplastic CoREZYN COR75-AQ-010 Lloyd's Marine Iso Polyester (Interplastic Corp) delivers ASTM D638 Tensile Strength of 74 MPa (10,733 psi) and ASTM D648 HDT of 94 °C, whereas Scott Bader Crystic 489PA Isophthalic Marine Hull Polyester (Scott Bader North America) delivers 71 MPa (10,298 psi) and HDT of 90 °C. The net delta is +3 MPa (+4.2 %) tensile and +4 °C HDT.
3. Do Interplastic CoREZYN COR75-AQ-010 Lloyd's Marine Iso Polyester and Scott Bader Crystic 489PA Isophthalic Marine Hull Polyester 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. Direct Drop-In Qualified: Thermal deflection (ASTM D648 HDT) differs by only 4 °C (94 °C vs. 90 °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 Interplastic CoREZYN COR75-AQ-010 Lloyd's Marine Iso Polyester and Scott Bader Crystic 489PA Isophthalic Marine Hull Polyester?▼
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, Interplastic CoREZYN COR75-AQ-010 Lloyd's Marine Iso Polyester is priced at $1,665 per 225 kg Steel Drum ($7.4/kg) vs. $1,643 per 225 kg Steel Drum ($7.3/kg) for Scott Bader Crystic 489PA Isophthalic Marine Hull Polyester (delta: +0.1 USD/kg).
Related Drop-In Comparisons in Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa)
Interplastic CoREZYN COR75-AQ-010 Lloyd's Marine Iso Polyester (Interplastic Corp) and Scott Bader Crystic 489PA Isophthalic Marine Hull Polyester (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).