Fire Retardant Sheets,3mm Thickness, Made from Silicone Rubber|| Centroid

Engineered for applications where heat and fire safety cannot be compromised, this 3mm fire-retardant silicone rubber sheet delivers dependable sealing, gasketing, and insulation performance while resisting ignition and self-extinguishing once the flame source is removed. Manufactured from high-grade VMQ silicone, it stays flexible and stable across a wide temperature range that would harden, crack, or melt ordinary rubber.

Supplied as ready-to-use precut sheets in 300×300mm and 450×450mm, in blue, red, and yellow for easy colour-coding of lines, zones, or safety categories. The sheet cuts cleanly with a knife or scissors, so it's easy to fabricate into gaskets, pads, and liners on site — no special tooling required.

Why it performs

Flame-retardant silicone holds a high Limiting Oxygen Index, meaning it needs an oxygen-rich environment to keep burning and self-extinguishes in normal air. Unlike many plastics, it does not drip flaming material and produces low smoke and low toxic-gas emissions when exposed to fire — a key reason it is specified in enclosed and public environments. It also resists UV, ozone, and weathering, so it performs outdoors and in high-exposure industrial settings without degrading.

Key specifications

Applications / Areas of Usage:

• Fire-barrier gaskets, seals, and O-ring stock in high-heat equipment
• Thermal and electrical insulation pads and liners
• Flame-retardant gasketing for electrical enclosures, switchgear, and control panels
• Vibration-damping and anti-slip pads near heat sources
• Sealing gaskets for ovens, furnaces, boilers, and HVAC ducting
• Colour-coded sealing/masking in workshops and labs
• Heat-shield and barrier layers in battery packs and EV enclosures
• General high-temperature masking during powder-coating and painting
• Can be used in Protecting outdoor electrical equipments like CT, PT by wrapping over it
• Can be used to cut different gaskets or punch shapes for gasketing and sealing