MIL-R-6130 Silicone Sponge Sheet
MIL-R-6130 Type II Grade C Silicone Sponge
Technical Specifications and Advantages
Specifying high-purity MIL-R-6130 Type II Grade C silicone sponge from ElastaPro ensures long-term operational performance in mission-critical environments:
- Wide Operational Temperature Spectrum: Flexible from -103°F to +450°F, maintaining sealing elasticity in Arctic or high-heat engine environments.
- Ozone, UV & Environmental Resistance: Resists breakdown from direct UV exposure, radiation, salt spray, and extreme weather.
- Low Compression Set: Retains structural memory and recovery capability over extended compression cycles.
- Fluid & Moisture Isolation: Closed-cell formulations prevent moisture ingress and resist contamination from hydraulic fluids and oils.
ElastaPro manufactures MIL-R-6130 silicone Type II Grade C silicone sponge sheets and roll stock to precise thickness tolerances to streamline conversion via die-cutting, waterjet processing, or slitting.
Defense & Aerospace Applications
- Naval & Marine Enclosures: Watertight compartment hatches and salt-spray-resistant electronic cabinets.
- Avionics & Radar Housings: Environmental seals shielding sensitive microelectronics from dust, water, and vibration.
- Ground Vehicle Gasketing: Ruggedized door, access panel, and vibration isolation pads for defense vehicles.
- Legacy Defense Spare Parts: Maintenance replacement parts for defense systems specifying original MIL-R-6130 parameters.
Frequently Asked Questions (FAQ)
What is MIL-R-6130 silicone?
MIL-6130 silicone is a U.S. military specification covering cellular, closed-cell silicone rubber stock used primarily for environmental sealing, thermal insulation, and vibration dampening in defense and aerospace applications.
Is MIL-R-6130 silicone still active for defense procurement?
While MIL-R-6130 has been formally cancelled for new military designs in favor of specs like ASTM D1056 and AMS 3195/3196, it remains an essential specification for legacy military equipment maintenance, MRO operations, and defense spare parts contracting.
What is the difference between MIL-R-6130 Type I and Type II?
Type I designates open-cell or semi-open cellular structure focused primarily on sound absorption and light cushioning, whereas Type II specifies closed-cell silicone sponge engineered for fluid exclusion, weatherproofing, and low-water-absorption sealing.