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Updated by Mark Jones on Feb 24, 2016
Headline for Why is HT800 Silicone an Optimum Material for the Rail Sector?
Mark Jones Mark Jones
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Why is HT800 Silicone an Optimum Material for the Rail Sector?

HT800 is used widely for enhanced safety and performance the rail and mass transit sector; it’s a key material used to seal and protect various communication, electronics, and lighting enclosures in rail vehicles. The specialist silicone sponge sheeting is BS6853 Cat 1A approved and is currently implemented in vehicles within the London Underground network.


HT800 is easily applied

HT800 silicone sponge sheeting is available in various thicknesses and with pressure-sensitive adhesive on one or two sides to allow for easy application to a variety of surfaces. The material is manufactured in roll form, in order that it can be easily converted and applied for the required applications.


Highly resistant

Not only is HT800 silicone sheeting more resistant to set compression and dust and moisture penetration, the material is highly resistant to wear from ultraviolet light and the ozone, or extreme temperatures. In addition, it is a flame resistant material that complies with BS6853 Cat 1A fire safety standards. The material is therefore ideal for optimising and maintaining a consistent performance for rail vehicles in all environments.


Superior sealing capabilities

Because of the material’s compact, cellular structure, it is a superior sealing solution for rail vehicles than traditional sponge rubber. HT800’s unique formulation offers advanced resistance to the penetration of fine particles and wind-driven rain, which is why it is widely used for outdoor applications in the rail sector.


A material with excellent memory

A material with excellent memory

The HT800 silicone sponge is of a medium firmness, however it offers the lightness of a foam. This provides the material with an excellent memory and low stress relaxation, meaning that it won’t easily soften or become permanently compressed over time. As a result, HT800 makes for a long-lasting material that will reduce maintenance costs associated with gasket failures.


HT800 is extremely versatile

The cellular sponge material is suited to a wide range of sealing solutions to protect rail vehicles against penetration of dust, moisture, air, or light within outdoor enclosures. HT800 is used to enhance the performance of outdoor lighting fixtures, HVAC units and electronic cabinets. The silicone sponge also optimises shock absorption and reduces isolate vibration for a number of components within rail vehicles, including electronic components, seat cushions and gaskets.

  • C B Frost & Co is an innovative and highly experienced rubber and plastics manufacturer and converter. Established in 1921 we have earned a reputation for our extensive product range, comprehensive technical support and excellent customer service. Working closely with engineers, designers and manufacturers across a range of industries worldwide, we can offer the highest quality materials to serve our customers sealing, gasketing and insulation needs.

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