Silicone Rubber Sheets, Sponge and Foam for Gasketing and Insulation
Silicone rubber provides long‑term sealing, cushioning, and insulation performance in environments where temperature, weathering, and vibration quickly break down conventional materials. Brown International supplies Norseal solid silicone rubber, silicone sponge, and silicone foam products to New Zealand manufacturers across electronics, transport, industrial equipment, and outdoor enclosure applications.
Silicone Solid Rubber
Norseal solid silicone rubber is engineered for demanding applications requiring durability, dimensional stability, and resistance to extreme environments. Reinforced grades with fibreglass provide additional strength and stability for high‑pressure gaskets, press pads, conveyor belts, and expansion joints. Key features include:
Outstanding high‑temperature stability and low‑temperature flexibility for long‑term sealing performance in harsh conditions.
Low compression set to maintain gasket load and prevent leakage over many cycles.
Excellent resistance to oils, fluids, and lubricants commonly used in industrial and transport equipment.
Smooth, defect‑free surfaces with low outgassing for sensitive electronics and clean applications.
Non‑toxic, non‑corrosive, and non‑staining properties.
Norseal solid silicone rubber is available in a range of thicknesses and hardness levels, in roll and sheet formats to suit industrial, aerospace, electronics, and transportation applications.
Silicone Foam & Sponge
Norseal silicone foam and sponge products provide conformable, lightweight gasketing and insulation where you need good compression recovery, fire performance, and environmental sealing. Available families include low‑density foams for light‑duty seals and cushioning, and firmer closed‑cell materials for more demanding transportation and industrial environments. Key benefits include:
Excellent resistance to weather, moisture, ozone, UV, and fungus for long‑term outdoor use.
Low compression set for reliable, repeatable sealing under varying compression.
Broad operating temperature capability for hot and cold environments.
Options with recognised flame performance and low smoke/toxicity characteristics for transport and mass‑transit uses.
Availability in multiple thicknesses and densities to match enclosure, panel, and cushioning designs.
Typical applications include gasket seals for outdoor lighting and electrical enclosures, seat and equipment cushioning, medical equipment interfaces, access panel seals, and insulation in railcars and transport vehicles.
Industries
Silicone materials are used across electronics, transport, food processing equipment, and outdoor enclosures, where heat resistance, sealing performance, and durability are important.
Norseal materials are specifically described for markets including electronics, transportation, industrial equipment, and food industry applications, while silicone foam is highlighted for outdoor sealing and gasketing.
How to specify silicone rubber with BIL
When you contact Brown International, it helps to confirm:
Application type (e.g. enclosure gasket, access panel seal, press pad, vibration damping pad, thermal insulation).
Environment and requirements (temperature range, indoor/outdoor exposure, fluids, cleaning regimes, any flame/smoke expectations).
Preferred form (solid silicone sheet, sponge, foam, or tape) and approximate hardness or density range.
Required thickness, width, and format (roll, sheet, or cut parts) so we can align with available Norseal product ranges.
Related products
For tape-format silicone gasketing, see our SNS tape range, which provides silicone rubber in an easy-to-apply pressure-sensitive adhesive form.
For more detail on temperature ranges and material selection, see our FAQ and the relevant Norseal technical data sheets.
Brown International can source a broad range of Norseal silicone solutions and work with you to select a grade that matches your sealing, cushioning, and insulation requirements while fitting your local New Zealand production environment.[