Overview
Custom silicone gaskets are high-temperature, weather-resistant seals used in appliances, electronics, medical devices, and food equipment. Silicone rubber stays flexible from -60°C to +230°C, resists weathering and ozone, and is available in FDA and medical grades — making it the material of choice for seals that must endure heat, cold, and sterilization.
ORRO Manufacturing produces custom silicone gaskets in any profile, size, and durometer, molded or die-cut to your drawing. We supply food-grade, medical-grade, and high-consistency silicone, and can add adhesive backing, fabric reinforcement, or custom colors to match your sealing requirement.
Material Properties
| Property | Silicone Rubber (VMQ) |
|---|---|
| Density (g/cm³) | 1.10 - 1.20 |
| Tensile Strength (MPa) | 5 - 10 |
| Hardness (Shore A) | 30 - 80 |
| Continuous Service Temperature (°C) | -60 to +230 |
| Compression Set (%) | 20 - 40 |
| Weather / Ozone Resistance | Excellent |
| Dielectric Strength (kV/mm) | 15 - 25 |
| Oil Resistance | Poor |
Key Advantages
- Extreme Temperature Range: Flexible from -60°C to +230°C, beyond most elastomers.
- Excellent Weathering Resistance: Unaffected by UV, ozone, and long-term exposure.
- FDA and Medical Grades: Suitable for food contact and medical device sealing.
- Sterilizable: Withstands steam, dry heat, and chemical sterilization.
- Good Electrical Insulation: Dielectric strength suits sealing and insulating duties together.
- Wide Hardness Range: 30-80 Shore A to match any sealing compression.
Typical Applications
Food and Beverage Equipment
FDA-grade gaskets for ovens, kettles, and processing equipment exposed to heat and washdown.
Medical and Laboratory Devices
Sterilizable gaskets for surgical instruments, diagnostics, and lab equipment.
Electronics and Appliances
High-temperature seals for ovens, lighting, and electronic enclosures.
Machining Capabilities
| Parameter | Capability |
|---|---|
| Tolerance | ±0.1 mm (thickness), ±0.2 mm (profile) |
| Hardness Range | 30 - 80 Shore A |
| Thickness Range | 0.5 mm to 25 mm |
| Key Processes | Compression molding, die cutting, waterjet cutting, bonding |
Application Case
Commercial oven door gasket, FDA silicone — An appliance maker needed gaskets that would seal a commercial oven at 220°C and pass FDA food-contact requirements. ORRO molded custom-profile FDA silicone gaskets in 50 Shore A, delivering 15,000 pieces in 14 days. The gaskets withstood continuous thermal cycling without hardening or cracking.
