Application

Interdens® is commonly used in hardware protection, glazing systems, fire resistant shutters, cabinets, cable penetration seals etc.

interdens
white interdens

Properties

Interdens® is a low pressure foaming intumescent. At temperatures above 150°C it begins to foam. A secondary foaming is observed at around 350°C and it goes on to expand between 25-95x its original volume.

This foam seals joints and gaps, closes voids and openings. Thus, the foam restricts the passage and spread of heat, smoke and flames. The heat transfer through fire resistant construction products and construction elements as well as the spread of fire are effectively delayed.

Testing

Interdens® has been extensively tested to various internationally recognised standards, including, but not limited to, BS 476:22 and BS EN 1634-1 for up to 120 minute applications. It is also covered by ETA-16/0811 (European Technical Assessment).

fire testing
Interdens

Available sizes and colours

Interdens® comes in 3 thicknesses: 0.6mm, 1.0mm, and 2.0mm. It can be cut to any shape in sizes below or equal to 2040x1000mm. Interdens® is available in white, black, and brown. It can be supplied with or without self-adhesive tape.

Our Testimonials

For unparalleled fire protection, Vanquish is my absolute go-to. Their team's deep technical knowledge is matched only by the quality of their products — I'd...
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Hardware Manufacturer

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Vanquish is a reliable partner we know we can trust. On the rare occasion an issue arises, they resolve it quickly and keep us informed....
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Passive Fire Protection Distributor

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I have been dealing with Vanquish for many years now and have been using their products in combination with several essential hardware products being supplied...
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Hardware Manufacturer

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Vanquish have continually provided great advice, support and products for our business. From design, sampling and all the way to supply the whole team have...
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Hardware Manufacturer

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Working with Vanquish has been an extremely positive experience. Their products are exceptionally well designed and manufactured to a very high standard. Just as importantly,...
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Sealing Solutions & Distributor

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Vanquish has been a supplier to us for a few years now, consistently providing excellent service and reliable support through their knowledgeable team and customer-focused...
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Hardware Manufacturer

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Cannot fault the Vanquish team! From quick turnaround of enquiries and orders to pulling the odd rabbit out of a hat for us they always...
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Passive Fire Protection Distributor

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Since their inception, our experience with Vanquish has been first class. From product innovation, customer service, training and value for money their approach to business...
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Passive Fire Protection Distributor

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The team is professional, responsive, and consistently demonstrates a willingness to support us in achieving the best outcomes. Their innovative approach to intumescent products, combined...
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Hardware Manufacturer

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First time using Vanquish and I’m genuinely impressed with both the quality of the products and the excellent service that they provide.

Door Manufacturer

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