Unique-Bargains
Unique-Bargains Silicone Sealing Strip 12mm 39" Cream White
A 39-inch by 12-millimetre silicone sealing strip rated from -94 °F to 482 °F for high-temperature door and window gaskets
- Withstands extreme heat up to 482°F (250°C)
- Remains flexible in severe cold down to -94°F (-70°C)
- 12 mm diameter suits 0.47" gaps and channels
- 39-inch length lets you cut custom seal sizes
- Resists oil, ozone and aging for long service life
Silicone Sealing Strip 12mm
This solid round silicone strip measures 12mm in diameter and 39 inches long in a cream white colour. It suits automotive, marine and industrial sealing tasks where a flexible, high-temperature gasket is required. The material resists mild acids, alkalis, oils and abrasion while remaining non-toxic and odourless.
Replaces worn O-rings and flat gaskets
Use it to renew degraded seals on equipment doors, windows, exhaust shafts, spark plug sleeves or hydraulic fittings. The strip can be cut and spliced into custom rings, making the jump worthwhile when standard moulded parts are unavailable or when a single continuous length simplifies installation across multiple joints.
Stable from -70°C to 250°C
The silicone retains elasticity and does not deform during prolonged exposure to extreme heat or cold, unlike rubber compounds that harden or crack over time. It also resists ozone and UV ageing, so sealing performance remains consistent through continuous thermal cycling in engine bays, ovens or outdoor machinery.
Highlights
- Withstands extreme heat up to 482°F (250°C)
- Remains flexible in severe cold down to -94°F (-70°C)
- 12 mm diameter suits 0.47" gaps and channels
- 39-inch length lets you cut custom seal sizes
- Resists oil, ozone and aging for long service life
Specifications
| Brand | Unique Bargains |
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Questions about this item
What diameter groove or channel does the 12 mm strip need to sit in?
The solid round profile is 12 mm in diameter, so the receiving groove or channel should be slightly larger than 12 mm to allow the strip to seat without being pinched.
How do I cut and join the 39 inch length to form a continuous seal?
Cut the strip to length with a sharp knife, then butt the ends together or overlap them slightly; the material’s natural tack and elasticity hold the joint without adhesive.
When should the strip be replaced in a high-temperature door seal?
Inspect periodically for hardening, surface cracking or loss of elasticity; the silicone is rated to 250 °C, so degradation typically appears only after prolonged exposure near that limit.
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