Thermoset Composite Sandwich Panels

CRTM™ Composite Sandwich Panels

Strong, Lightweight, Structural

CRTM™ (continuous resin transfer molding) panels are thermoset composite sandwich panels with tailored, multi-axial fiber reinforcements, high-fiber volume and very low void content. These custom-engineered products are available with a wide variety of core materials, including end-grain balsa, foam or engineered woods and laminate face-sheets with continuous fiberglass and/or carbon fiber reinforced polyester, vinyl ester and epoxy or custom resins.

Panels are custom engineered to meet customer needs by varying core thicknesses to affect stiffness, core materials to affect weight, fiber to modify the stiffness-weight ratio, and resin material to affect strength.

Connect with a Product Expert


  • Improved thermal insulation
  • Reduced component complexity compared to metal
  • Unlimited continuous lengths with widths of up to 108 inches
  • Vibration damping and acoustic insulation
  • Designed for applications needing a high stiffness-to-weight ratio
  • More consistent quality throughout the panel than pultrusion
  • Better control of fiber alignment and resin kinetics


Product Bulletin: CRTM™ Panels

Explore these lightweight, high performance panels

eBook: Smart Materials™ Advanced Composites

Curious about composites? Download the eBook

Overview: Avient Advanced Composites

Explore our broad portfolio of composite technologies

Design Guide: Composite Sandwich Panels

Panel material selection and design considerations – get the Design Guide

Panel Thickness (in) Areal Weight (lbs/sq ft)
0.54" 1.2
0.75" 1.4
2.24" 3.1
Advanced Composites Overview Product/Service Overview Avient’s reinforced composite technologies use carbon, glass and aramid fibers with custom formulated thermoset or thermoplastic resins in continuous forming processes View
Composite Sandwich Panels Processing & Design Guides Your comprehensive resource for material selection and design considerations of composite sandwich panels View
Door Panel for Rail Car Manufacturer Case Study (Snapshot) CRTM™ Composite Sandwich Panels reduced component complexity compared to metal for door panel on rail car View
Glasforms CRTM Product/Service Overview Product description, value solution, key characteristics, markets and applications of Glasforms™ CRTM™ Continuous Resin Transfer Molding Sandwich Panels View
Glasforms™ and Polystrand™ Composite Sandwich Panels for Marine Industry - Application Bulletin Application Overview Capabilities, features, benefits, impact, and technical data for Glasforms™ and Polystrand™ composite sandwich panels for marine industry applications View
Smart Materials™ Advanced Composites for Demanding Applications - eBook eBook Take a comprehensive look at composite materials to help you identify the best solution for your needs View
Webinar: Composite Sandwich Panels Webinar Explore Design & Material Selection of Composite Panels for Structural Components View

Infographic: Advanced Composites for Demanding Applications

Highlights of some key benefits of advanced composites and trends shaping the market