HT800 silicone foam is a medium cellular foam material with excellent compression set, memory, and low stress relaxation properties, which due to its compression set commonly reduces maintenance costs involved with gasket failure.
HT800 has excellent resistance to ultraviolet light and ozone, combined with a considerable low and high temperature range. It’s a material commonly used to reduce shock, isolate vibration and provide protection against wind driven rain and fire in various outdoor communications, electronics and lighting enclosures, whilst also working effectively to IP66 and IP67.
HT800 Silicone foam is Fire Safe – approved to EN45545-2, BS6853 Cat 1A, UL94 to V-0 and HF-1 and is approved and commonly utilised by TFL on the London Underground.

Most sizes in stock and will be dispatched within 1-2 working days.
All items will be dispatched based on “next working day carriers” within mainland UK only.
Highlands & Islands are normally 48hrs.
CB Frost use a next day carrier network which will require a signature upon delivery.
If no one is available a calling card will be left, and you will then have to contact your local depot to arrange for redelivery. Alternatively, we can ask them to leave your parcel safe (at your risk).
For non-stock items please allow 7-10 days for delivery.
Overseas orders will be sent via the most cost-effective method (we will discuss this with you prior to despatch). If there is a delay in delivery, we will contact you.
If you have a specific delivery date requirement, we are happy to accommodate this, please call us.