.125 in 12 in x 36 in Industrial Silicone Rubber Sheet - Temp

In this review the.125 in 12 in x 36 in industrial silicone rubber sheet is evaluated for technicians, fabricators, and DIYers who need a durable, temperature-tolerant gasketing and sealing material. The bottom line: this sheet stands out because of its wide operating range and flexible, easy-to-work material. For anyone making gaskets, insulating enclosures, or adding weather seals, the silicone's resistance to extreme temperatures and UV makes it a practical choice; the review focuses on real-world handling, durability, and common applications.

Key Features

• Temperature Resistance: Operates from -60C to 230C (-76F to 446F), allowing use in both cryogenic and high-heat environments without rapid degradation.
• Flexibility: The silicone material has strong elasticity so it conforms to uneven surfaces and is straightforward to cut and shape for custom gasket work.
• Weather and UV Resistance: Formulated to resist weathering and UV exposure, making it suitable for outdoor sealing and long-term exterior use.
• Moisture and Chemical Durability: Resists moisture, ozone, and oxidation which helps in electrical enclosures and damp environments where corrosion or breakdown is a concern.
• Versatile Applications: Useful for gasketing, vibration damping, insulation, and general-purpose sealing across industrial and hobby projects.

Who It's For

This silicone sheet is aimed at maintenance crews, machine shops, HVAC technicians, electricians, and serious DIYers who need a reliable gasket or insulating material that tolerates a broad temperature spectrum. It is particularly valuable where a single material must handle both high heat and cold conditions or be exposed to sunlight and moisture.

Those who should look elsewhere include users needing a self-adhesive product, molded shapes, or a thicker elastomer for heavy load sealing; this sheet is a flat, cut-to-size material best suited to trimming and fabrication rather than finished molded parts.

Pros & Cons

Pros

• Excellent high and low temperature performance suits a wide range of environments.
• Material quality is noted by customers as good for gasket making and general fabrication.
• Strong resistance to UV, moisture, ozone, and oxidation for outdoor and harsh settings.

Cons

• As a flat silicone sheet, it requires cutting and shaping tools; not ideal if a preformed gasket or adhesive backing is required.

Specifications

Our Verdict

The.125 in 12 in x 36 in silicone sheet is a solid value for anyone needing a flexible, temperature-resistant gasketing and sealing material. Its broad operating range and durable silicone composition make it especially useful for industrial maintenance and DIY gasket fabrication, offering long-term outdoor and thermal reliability without a premium price for specialty grades.

Frequently Asked Questions

Can this sheet be cut to custom gasket shapes?
Yes, it is easy to cut and shape with standard hand tools or a utility knife for custom gaskets.

Is the material suitable for outdoor use?
Yes, the silicone is formulated to resist UV, moisture, ozone, and oxidation, making it appropriate for outdoor sealing.

Will it tolerate electrical insulation applications?
Yes, silicone rubber is commonly used for electrical enclosures and insulation due to its stability and moisture resistance.