Airtech Dahlpac MC79 Combined Peel Ply + Release Film + Flow Mesh vs. Wrightlon® 7400 High-Elongation Bagging Film
Airtech Dahlpac MC79 Combined Peel Ply + Release Film + Flow Mesh (Airtech Advanced Materials) and Wrightlon® 7400 High-Elongation Bagging Film (Airtech Advanced) achieve a 82% ASTM engineering compatibility score in Vacuum Infusion Films, Peel Ply, Flow Media, Breathers & Sealant Tapes. Tensile strength delta is +2.8 MPa (+5.1%) and thermal HDT delta is -54.4 °C, making them interchangeable with post-cure temperature and viscosity flow adjustments.
Side-by-Side ASTM Mechanical, Thermal, Rheological & Pricing Delta
| ASTM Parameter | A: Airtech Dahlpac MC79 Combined Peel Ply + Release Film + Flow Mesh (Airtech Advanced Materials) | B: Wrightlon® 7400 High-Elongation Bagging Film (Airtech Advanced) | Engineering Delta (A vs. B) |
|---|---|---|---|
| OEM Manufacturer & SKU | Airtech Advanced Materials • AIR-DAHLPAC-MC79 | Airtech Advanced • AIR-WL7400-120IN | Cross-Brand OEM Equivalent |
| ASTM D638 Tensile Strength (MPa / PSI) | 58 MPa (8,412 psi) | 55.2 MPa (8,000 psi) | +2.8 MPa (+5.1 %) |
| ASTM D648 Heat Deflection Temp (HDT °C / °F) | 150 °C (302 °F) | 204.4 °C (400 °F) | -54.4 °C (Verify Post-Cure) |
| ASTM D790 Flexural Strength (MPa) | N/A | 80 MPa | N/A |
| ASTM D2583 Barcol Hardness | N/A | N/A | N/A |
| ASTM D2196 Brookfield Viscosity @ 25°C | Solid Reinforcement / Core | 0 cPs | Solid State |
| Gel Time @ 25°C (Minutes) | N/A | 35 min | N/A |
| ASTM D792 Specific Density (kg/m³) | 1120 kg/m³ | 1120 kg/m³ | 0 kg/m³ |
| US DOT 49 CFR & TDG Hazmat Class | Non-Regulated Industrial Consumable (N/A) | Non-Hazmat Standard Freight (N/A) | Identical (N/A) |
| Unit Price ($/kg USD) & Pack Price | $21.5/kg • $602 (100m Industrial Roll / Case) | $2.45/kg • $490 (Roll (120 in Width)) | +19.05 $/kg (+777.6 %) |
| US Stocking Warehouses | Huntington Beach, CA • Springfield, TN • Tampa, FL | CA • TX • TN • FL | 1–3 Days LTL Dispatch |
Companion process stack: Butyl Vacuum Sealant Tape (GS-213-3) + Perforated Release Film & Peel Ply. Follow COMPLETE INFUSION STACK: Laminate → Peel Ply (85 gsm Nylon) → Perforated Release Film → HDPE Spiral Flow Media → Spiral Tubing & Omega Channels → Butyl Tacky Tape → Nylon Vacuum Film.
Post-Cure Schedule Adjustment Advised: ASTM D648 HDT differs by 54.4 °C (150 °C vs. 204.4 °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 Industrial Consumable (UN Number: N/A). Note 49 CFR § 177.848 segregation if ordering with Class 5.2 Organic Peroxides (UN3105).
Engineering FAQ: Airtech Dahlpac MC79 Combined Peel Ply + Release Film + Flow Mesh vs. Wrightlon® 7400 High-Elongation Bagging Film
1. Is Airtech Dahlpac MC79 Combined Peel Ply + Release Film + Flow Mesh a direct drop-in equivalent for Wrightlon® 7400 High-Elongation Bagging Film?▼
Airtech Dahlpac MC79 Combined Peel Ply + Release Film + Flow Mesh (Airtech Advanced Materials) and Wrightlon® 7400 High-Elongation Bagging Film (Airtech Advanced) achieve a 82% ASTM engineering compatibility score in Vacuum Infusion Films, Peel Ply, Flow Media, Breathers & Sealant Tapes. Tensile strength delta is +2.8 MPa (+5.1%) and thermal HDT delta is -54.4 °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 Airtech Dahlpac MC79 Combined Peel Ply + Release Film + Flow Mesh and Wrightlon® 7400 High-Elongation Bagging Film?▼
Airtech Dahlpac MC79 Combined Peel Ply + Release Film + Flow Mesh (Airtech Advanced Materials) delivers ASTM D638 Tensile Strength of 58 MPa (8,412 psi) and ASTM D648 HDT of 150 °C, whereas Wrightlon® 7400 High-Elongation Bagging Film (Airtech Advanced) delivers 55.2 MPa (8,000 psi) and HDT of 204.4 °C. The net delta is +2.8 MPa (+5.1 %) tensile and -54.4 °C HDT.
3. Do Airtech Dahlpac MC79 Combined Peel Ply + Release Film + Flow Mesh and Wrightlon® 7400 High-Elongation Bagging Film use the same catalyst or hardener cure system?▼
Companion process stack: Butyl Vacuum Sealant Tape (GS-213-3) + Perforated Release Film & Peel Ply. Follow COMPLETE INFUSION STACK: Laminate → Peel Ply (85 gsm Nylon) → Perforated Release Film → HDPE Spiral Flow Media → Spiral Tubing & Omega Channels → Butyl Tacky Tape → Nylon Vacuum Film. Post-Cure Schedule Adjustment Advised: ASTM D648 HDT differs by 54.4 °C (150 °C vs. 204.4 °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 Airtech Dahlpac MC79 Combined Peel Ply + Release Film + Flow Mesh and Wrightlon® 7400 High-Elongation Bagging Film?▼
Identical Hazmat Logistics Profile: Both SKUs ship under US DOT 49 CFR & Transport Canada TDG as Non-Regulated Industrial Consumable (UN Number: N/A). Note 49 CFR § 177.848 segregation if ordering with Class 5.2 Organic Peroxides (UN3105). In US B2B distribution, Airtech Dahlpac MC79 Combined Peel Ply + Release Film + Flow Mesh is priced at $602 per 100m Industrial Roll / Case ($21.5/kg) vs. $490 per Roll (120 in Width) ($2.45/kg) for Wrightlon® 7400 High-Elongation Bagging Film (delta: +19.05 USD/kg).
Related Drop-In Comparisons in Vacuum Infusion Films, Peel Ply, Flow Media, Breathers & Sealant Tapes
Airtech Dahlpac MC79 Combined Peel Ply + Release Film + Flow Mesh (Airtech Advanced Materials) and Wrightlon® 7400 High-Elongation Bagging Film (Airtech Advanced) 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).