Rubber & FoamSilicone-spongeSKU IPS-HTS-1.5
High Temperature Silicone Sponge Sheet – 1m x 1m | +270°C, 300°C Intermittent | Off-White | 1.5–25mm
Price shown updates with the option you pick.
Sponge that keeps sealing at 270°C – where standard silicone sponge gives up
A heat-stabilised, medium density (250 kg/m³) silicone sponge rated for continuous use at +270°C and short excursions to 300°C, about 40°C beyond standard silicone sponge. It stays soft and pliable, so oven and furnace doors seal with low closing force even when hot.
It also meets FAR 25 / CS 25 horizontal flammability requirements, making it suitable for aerospace interiors as well as industrial heat.
HOW IT IS SOLD
- Each unit is a 1m x 1m sheet, off-white.
- Self-adhesive backing can be applied to order – ask for a quote.
- Cut gaskets and strip available.
WHICH THICKNESS?
- 1.5–3mm: flat oven panel and duct gaskets.
- 4–8mm: oven and furnace door seals.
- 10–25mm: large gaps, high-temperature cushioning and insulation.
TYPICAL APPLICATIONS
- Industrial and bakery oven door seals
- Furnace, kiln and dryer gaskets
- Hot-air duct and exhaust housing seals
- Heat-press backing pads
- Aerospace hot-zone seals
TECHNICAL SPECIFICATION
| Material | Heat-stabilised silicone sponge |
| Density | 250 kg/m³ (medium) |
| Colour | Off-white |
| Thickness | 1.5mm to 25mm |
| Sheet size | 1m x 1m |
| Temperature range | -60°C to +270°C, 300°C intermittent |
| Flammability | Meets FAR 25 / CS 25 Appendix F Part 1 (a)(1)(iv) and (v) horizontal flammability |
FREQUENTLY ASKED QUESTIONS
Do I need this or standard silicone sponge?
If the seal sees more than 230°C continuously, choose this grade. Below that, standard silicone sponge is more economical.
Does it need air at high temperature?
Yes – like all silicones it performs best with oxygen present. Tell us if the seal is fully enclosed.
NOT SURE WHAT YOU NEED?
Call +44 1282 277786 or email sales@industrial-polymers.co.uk with your application, temperature, gap size and closing force and we will recommend the right density and thickness.
Product details
| SKU | IPS-HTS-1.5 |
|---|---|
| Material | Silicone-sponge |
| Form | Sheet |
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Fast, no-obligation price from our UK team for:High Temperature Silicone Sponge Sheet – 1m x 1m | +270°C, 300°C Intermittent | Off-White | 1.5–25mm