Chomarat Rovicore 600/D3/600 Closed-Mold RTM Flow Glass vs. Owens Corning Knytex DBM 1708 Advantex E-CR Biaxial
Chomarat Rovicore 600/D3/600 Closed-Mold RTM Flow Glass (Chomarat North America) and Owens Corning Knytex DBM 1708 Advantex E-CR Biaxial (Owens Corning) achieve a 68% ASTM engineering compatibility score in Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa). Tensile strength delta is -2060 MPa (-79.2%) and thermal HDT delta is matched, making them interchangeable with post-cure temperature and viscosity flow adjustments.
Side-by-Side ASTM Mechanical, Thermal, Rheological & Pricing Delta
| ASTM Parameter | A: Chomarat Rovicore 600/D3/600 Closed-Mold RTM Flow Glass (Chomarat North America) | B: Owens Corning Knytex DBM 1708 Advantex E-CR Biaxial (Owens Corning) | Engineering Delta (A vs. B) |
|---|---|---|---|
| OEM Manufacturer & SKU | Chomarat North America • CHO-ROVI-600D3 | Owens Corning • OC-DBM1708-50IN | Cross-Brand OEM Equivalent |
| ASTM D638 Tensile Strength (MPa / PSI) | 540 MPa (78,321 psi) | 2600 MPa (377,099 psi) | -2060 MPa (-79.2 %) |
| ASTM D648 Heat Deflection Temp (HDT °C / °F) | N/A | N/A | Ambient / N/A |
| ASTM D790 Flexural Strength (MPa) | 680 MPa | N/A | N/A |
| 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) | 2560 kg/m³ | 2620 kg/m³ | -60 kg/m³ |
| US DOT 49 CFR & TDG Hazmat Class | Non-Regulated Industrial Fiber (N/A) | Non-Regulated (N/A) | Identical (N/A) |
| Unit Price ($/kg USD) & Pack Price | $8.2/kg • $820 (100 kg Roll (50 in)) | $5.4/kg • $315 (65 yd Roll (50" Wide, 125 lbs)) | +2.8 $/kg (+51.9 %) |
| US Stocking Warehouses | Phenix City, AL • Tampa, FL • Minneapolis, MN | Lakeland, FL • St. Petersburg, FL • 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 0 °C (N/A °C vs. N/A °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 Non-Regulated Industrial Fiber (UN Number: N/A). Note 49 CFR § 177.848 segregation if ordering with Class 5.2 Organic Peroxides (UN3105).
Engineering FAQ: Chomarat Rovicore 600/D3/600 Closed-Mold RTM Flow Glass vs. Owens Corning Knytex DBM 1708 Advantex E-CR Biaxial
1. Is Chomarat Rovicore 600/D3/600 Closed-Mold RTM Flow Glass a direct drop-in equivalent for Owens Corning Knytex DBM 1708 Advantex E-CR Biaxial?▼
Chomarat Rovicore 600/D3/600 Closed-Mold RTM Flow Glass (Chomarat North America) and Owens Corning Knytex DBM 1708 Advantex E-CR Biaxial (Owens Corning) achieve a 68% ASTM engineering compatibility score in Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa). Tensile strength delta is -2060 MPa (-79.2%) and thermal HDT delta is matched, 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 Chomarat Rovicore 600/D3/600 Closed-Mold RTM Flow Glass and Owens Corning Knytex DBM 1708 Advantex E-CR Biaxial?▼
Chomarat Rovicore 600/D3/600 Closed-Mold RTM Flow Glass (Chomarat North America) delivers ASTM D638 Tensile Strength of 540 MPa (78,321 psi) and ASTM D648 HDT of N/A °C, whereas Owens Corning Knytex DBM 1708 Advantex E-CR Biaxial (Owens Corning) delivers 2600 MPa (377,099 psi) and HDT of N/A °C. The net delta is -2060 MPa (-79.2 %) tensile and N/A HDT.
3. Do Chomarat Rovicore 600/D3/600 Closed-Mold RTM Flow Glass and Owens Corning Knytex DBM 1708 Advantex E-CR Biaxial 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 0 °C (N/A °C vs. N/A °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 Chomarat Rovicore 600/D3/600 Closed-Mold RTM Flow Glass and Owens Corning Knytex DBM 1708 Advantex E-CR Biaxial?▼
Identical Hazmat Logistics Profile: Both SKUs ship under US DOT 49 CFR & Transport Canada TDG as Non-Regulated Industrial Fiber (UN Number: N/A). Note 49 CFR § 177.848 segregation if ordering with Class 5.2 Organic Peroxides (UN3105). In US B2B distribution, Chomarat Rovicore 600/D3/600 Closed-Mold RTM Flow Glass is priced at $820 per 100 kg Roll (50 in) ($8.2/kg) vs. $315 per 65 yd Roll (50" Wide, 125 lbs) ($5.4/kg) for Owens Corning Knytex DBM 1708 Advantex E-CR Biaxial (delta: +2.8 USD/kg).
Related Drop-In Comparisons in Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa)
Chomarat Rovicore 600/D3/600 Closed-Mold RTM Flow Glass (Chomarat North America) and Owens Corning Knytex DBM 1708 Advantex E-CR Biaxial (Owens Corning) 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).