Glastherm HT

Rigid Laminate Sheets Glastherm HT High-Temperature Insulation Board High Compressive Strength Thermal Insulation for Tooling & Industrial Applications Glastherm HT is a high-performance, glass fibre-reinforced insulation laminate engineered for elevated temperature environments and heavy mechanical loads. Designed for thermal insulation in moulds, presses, and high-temperature tooling, it provides excellent thermal isolation while maintaining structural integrity under compression. With a maximum service temperature of 288°C and outstanding compressive strength retention at elevated temperatures, Glastherm HT is ideal for applications where both heat resistance and load-bearing performance are critical. Product Highlights: Thicknesses Available: Supplied to specification — provide your required thickness when submitting a quote request Temperature Resistance: Maximum service temperature 288°C Sheet Dimensions: 1220 mm x 1220 mm Colour: Cream Supply Format: Available as full sheets, cut panels, or CNC machined parts to your drawings Key Benefits: High compressive strength with excellent load-bearing performance Maintains mechanical integrity at elevated temperatures Low thermal conductivity for effective heat isolation Reduces heat loss and improves temperature control in tooling systems Low moisture absorption (0.2%) for stable performance in industrial environments Resistant to oil and moisture in demanding operating conditions Suitable for machining using standard metalworking equipment Mechanical & Thermal Performance: Compressive Strength: Up to 338 MPa at room temperature, maintaining 117 MPa at 288°C Flexural Strength: 214 MPa Thermal Conductivity: 0.27 W/(m·K) Density: 1.97 g/cm³ Glastherm HT is commonly used in mould insulation, press insulation plates, high-temperature tooling systems, and industrial equipment requiring thermal stability under load. For flexible high-temperature insulation, see Glastic FHT Flexible Laminate. For rigid electrical insulation laminates, see Glastic Fibreglass Laminate. Need CNC-machined insulation components or cut-to-size panels? Request a quote below and enter all of your specifications Download: Glastherm HT Technical Data Sheet (PDF) ↓ Compare Glastherm HT with related laminates below or view the full selection guide . Not sure what laminate your project requires? Get a recommendation → Request A Quote - Glastherm HT