Extreme temperature resistance
Core advantage
Thermal Resistance: Continuous service from -60°C to 250°C; intermittent exposure to 315°C for 24 hours.
Low Compression Set: ASTM D1056 100°C @ 50% 22h < 4% to prevent long-term stress relaxation.
Core advantage
Certifications: Compliant with FDA , RoHS,Reach,315℃*24hrs test
Custom Processing: Precision die-cutting, custom profile extrusion, and high-temp PSA acrylic/silicone backing.
Material Properties Of High temperature sealing gasket in Sanpu
| Physical Property | Test Standard | Value / Rating | Unit |
| Density | ASTM D297 | 0.7 | g/cm³ |
| Hardness | ASTM D2240 | 25 – 35 | Shore A |
| Continuous Temp Range | -60 to +250 | °C | |
| Peak Temp Limit (24h) | SGS | 315 | °C |
| Tensile Strength | ASTM D412 | >1 | MPa |
| Elongation at Break | ASTM D412 | >100 | % |
| Compression Set | ASTM D395 Method B (100°C, 22h) | < 4 | % |
| Dielectric Strength | ASTM D149 | 0.06 | kV/mm |
Composite‑Reinforced for Superior Heat Resistance & Sealing Effect
fiberglass coated silicone sponge
Fiberglass can bear 400℃ in short time
Fiberglass cloth reinforcement greatly improves tear resistance and tensile strength of silicone sponge
Resists elongation and deformation under repeated heavy compression.
FAQ
Q: What is the minimum order quantity (MOQ) for high temperature sealing gasket?
A: We accommodate prototype runs and low-volume production with a low minimum threshold starting at 20 square meters of material, allowing R&D teams to test custom geometries before committing to high-volume tooling.
Q: What dimensional tolerances can Sanpu guarantee on die-cut high-temperature gaskets?
A: Sanpu holds dimensional tolerances within 10%*thickness mm for thickness ;Size tolerances is within +-2mm
Technical Consultation & Custom Sampling
Submit your CAD drawings or required material specs to our engineering team today for custom die-cut samples and a factory-direct quote.
silicone sponge parameters
| Products name | High temperature sealing gasket | Density(g/cm*3) | 0.6-1(31--62.43lb/ft³) |
| Thickness(mm) | 1-13mm (0.04--0.5 in) | Hardness(Shore C) | 45-95 |
| Width(m) | <1.2m (47.24in) | Color | Accept customization |
| Length(m) | Any length | Cell structure | closed cell |
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