3A Composites Airex C70.75 Cross-Linked PVC Sandwich Core

3A Composites Airex C70.75 Cross-Linked PVC Sandwich Core by 3A Composites (SKU: 3AC-C70-75-20MM) provides an ASTM D638 Tensile Strength of 2.7 MPa (392 psi), ASTM D648 Heat Deflection Temperature (HDT) of 88 °C (190 °F), ASTM D790 Flexural Strength of 3.8 MPa, and Brookfield viscosity of solid reinforcement/core state.

Required companion cure and process materials for 3A Composites Airex C70.75 Cross-Linked PVC Sandwich Core include: Structural Core-Bonding Putty (0.55 kg/m² kerf fill), Marine Vinyl Ester or Infusion Epoxy Matrix, Vectorply 1708 E-Glass / Carbon Skin Plies. Category Engineering Rule: 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.

Approved cross-referenced drop-in equivalents for 3A Composites Airex C70.75 Cross-Linked PVC Sandwich Core in the North American ASTM index include Diab Divinycell H80, Gurit Corecell M80. Direct head-to-head engineering comparisons are available against Divinycell® H80 Structural PVC Foam, Corecell™ M80 Marine SAN Foam Core, Diab Divinycell H100 Structural PVC Core.

3A Composites Airex C70.75 Cross-Linked PVC Sandwich Core is classified under US DOT 49 CFR and Transport Canada TDG as Non-Regulated Solid Polymer (UN Number: N/A). It ships from regional US hubs in DeSoto, TX, Statesville, NC, Tampa, FL with a typical lead time of 1-3 Days. When ordered with Class 5.2 Organic Peroxides (MEKP UN3105), 49 CFR § 177.848 hazmat segregation applies.

3A Composites Airex C70.75 Cross-Linked PVC Sandwich Core is qualified for Vacuum Infusion (Grid-Scored / Grooved & Perforated), Vacuum Bag Core Bedding. Primary industrial applications include Slamming Hull Bottom Panels, Cored Decks & Bulkheads, Outboard Transom Cores.