Exterior electrical enclosures face a constant battle against the elements, requiring robust sealing solutions to maintain their mandatory IP ratings. When gaskets fail under environmental stress, engineers consistently turn to advanced silicone foams and sponge materials to ensure long-term protection. By selecting a medium-density silicone foam like HT800, engineers can leverage its gap-filling and weatherproofing capabilities to reliably safeguard sensitive electrical components from severe environmental damage. 

• HT800 strips provide excellent gap-filling properties for uneven or textured enclosure surfaces.
• Medium-density cellular silicone foam offers effective weatherproofing against wind-driven moisture, dust, and UV light. 
• Self-adhesive backing ensures fast, reliable, and secure installation on IP-rated cabinets without messy liquid glues. 
• A HT800 seal retains its shape, elasticity, and compression recovery even under extreme temperature fluctuations.

Why Choose HT800 Silicone Foam for Electrical Enclosures?

HT800 is a highly versatile material, designed specifically to create watertight and dustproof seals in a range of demanding industrial and outdoor environments. This particular grade of silicone foam offers an excellent balance of flexibility and firmness, making it an ideal solution for sealing electrical enclosures without over-compressing.

HT800 is engineered to maintain its physical properties across an incredibly wide temperature range of -55℃ to +200℃. This consistency prevents a HT800 seal from becoming dangerously brittle in freezing conditions or melting during extreme heat. As a result, electrical cabinets remain protected regardless of erratic outdoor temperatures.

How Do HT800 Strips Protect IP-Rated Electrical Cabinets?

HT800 strips directly protect IP-rated electrical cabinets by forming an impenetrable and long-lasting barrier against wind-driven dust, heavy moisture, and damaging UV radiation. The compression set resistance and superior gap filling nature of this silicone foam ensures that even the smallest manufacturing tolerances or surface imperfections are completely sealed off from the outside world, keeping electrical components safe.

Maintaining an IP rating needs a robust seal that won’t chemically or structurally degrade when exposed to the elements over time. Whilst certain rubber gaskets (such as Nitrile) frequently crack or shrink under prolonged UV exposure, leading to moisture and dust ingress, HT800 silicone foam completely eliminates this risk through natural resistance to UV, ozone, and weathering.

What Are The Key Advantages of Self-Adhesive HT800 Strips?

Self-adhesive HT800 strips drastically reduce installation time by allowing electrical maintenance technicians to peel off protective backing and apply the seal directly to the enclosure without the need for messy, inconsistent liquid adhesives. This streamlined process ensures a fast, uniform, gap-free bond across the perimeter of the electrical cabinet door.

Adhesive backed strips naturally minimise human error during installation and maintenance. The pressure-sensitive adhesive provides an instant, highly secure grip on various metals, powder coatings and heavy-duty plastics, guaranteeing the seal stays where it needs to be, even under high vibration conditions, such as next to heavy machinery or busy roads.

Key Advantages:

• Eliminates the frustrating curing times historically associated with liquid glues.
• Prevents uneven manual application, guaranteeing consistent gap filling around enclosure doors.
• Allows for quick, easy replacement and maintenance upgrades in the field.

What Are The Most Common Applications For HT800 Strips?

As well as protecting electrical enclosures, HT800 silicone foam is frequently used throughout the rail industry to seal HVAC units, passenger information displays, and lighting enclosures. As an EN45545-2 compliant medium-density silicone foam, it delivers essential fire safety, advanced weatherproofing, and reliable vibration dampening for rail interiors, door seals and external equipment housings.

While frequently utilised for rolling stock, its versatility also makes it an ideal choice for applications within a range of industrial and renewable energy sectors, including:

• EV and Battery Enclosures: HT800 protects electric vehicles and EV battery modules from moisture and mechanical shock while meeting stringent thermal propagation safety requirements.

• Telecommunications and Renewables: It shields sensitive circuitry in outdoor base stations, solar inverters, and wind turbine control panels from harsh, long-term weather exposure.

Securing Your Assets with HT800 Gaskets

Protecting IP-rated electrical enclosures requires high performance sealing materials that won’t compromise under pressure, extreme weather, or prolonged UV exposure. HT800 strips deliver superior gap-filling and weatherproof performance, ensuring sensitive electrical components are secure and dry, year after year.

Specifying HT800 silicone foam with a self-adhesive backing ensures you streamline installation, while guaranteeing long lasting protection.

Looking for BISCO HT800 Medium density Silicone Strip? Order directly from our online shop.

For help with material assistance for your sealing needs, please contact our friendly sales team here, or call 0121 773 8494.