The leader in high-performance thermal insulation
Manufacturers around the world rely on The Gund Company and our subsidiary, VRI Composites, for the widest variety of thermal insulation materials required for optimal performance of heat presses, injection molding equipment, and furnaces. Our thermal insulation materials are recognized as a market standard due to their:
- High temperature resistance
- Low thermal conductivity
- Mechanical stability at elevated temperature (incl. parallelism)
- Easy machinability
- Low overall cost of ownership
- Long-term durability
- Corrosion /chemical resistance
APPLICATION EXPERTISE
PLASTIC INJECTION PRESSES
Thermal insulation for plastic injection molds improves product quality and decreases operating costs.
HYDRAULIC TIRE PRESSES
Hydraulic tire presses equipped with insulated, heated platens used to vulcanize car tires, two-wheel tires, and plane tires.
RUBBER INJECTION MOLDS
Heated insulation for injection presses used to manufacture seals, gaskets, membranes, connectors, and parts for medical and domestic applications.
PRECISION 3-D MOLDS
A key component in high-tech molds that require a complete array of thermal insulation installed on end user presses at parts manufacturers.
Core thermal insulation products and characteristics
| Material Name | Feature | Flexural Strength | Short-term Operational Temperature | Thermal Conductivity |
| VETROTHERM | HPL Standard Grade | 730 MPa 106 ksi | 280°C 540°F | 0.30 W/mK 1.70 BTU in / ft2 hr °F |
| VETROTHERM R | Economical HPL Grade | 650 MPa 94 ksi | 260°C 500°F | 0.30 W/mK 2.00 BTU in / ft2 hr °F |
| VETROTHERM F | LPL Standard Grade | 180 MPa 26 ksi | 230°C 450°F | 0.30 W/mK 2.00 BTU in / ft2 hr °F |
| VETROTHERM S | High-temperature Index Laminate | 180 MPa 26 ksi | 350°C 660°F | 0.22 (W/mK) 1.50 BTU in / ft2 hr °F |
| VETROTHERM LIGHT | Lowest Thermal Conductivity | 130 MPa 19 ksi | 230°C 450°F | 0.15 W/mK 1.10 BTU in / ft2 hr °F |
| PAMITHERM | Highest Operational Temperature | 170 MPa 25 ksi | 600°C 1100°F | 0.21 W/mK 1.25 BTU in / ft2 hr °F |
Advantages of partnering with The Gund Company and VRI Composites
- Materials designed to meet customers’ most challenging insulation needs
- Widest array of industry leading products
- Global sales offices and manufacturing sites in North America, Europe and Asia to ensure local service and short lead times
- Well-earned reputation for strong materials performance and durability
- Broad technical and application expertise
- Advanced testing capabilities and engineering knowledge
- Extensive capacity for custom machining, fabrication, flexible conversion, sub-assemblies and finishing