FSi Promat adds fire stopping collar to passive fire protection range

The PROMASTOP-FC MD is an easy-to-install, multi-diameter collar manufactured to seal combustible pipe penetrations through walls or floors in the event of a fire. Featuring an intumescent seal that triggers expansion at approximately 190 degrees Centigrade, the collar can resist smoke and flames for a period of up to 120 minutes.

It has been successfully tested to EN 1366-3 U/U to ensure the seal holds even if both ends of the pipe are open. This ‘capping’ configuration supports applications for services that are vented to atmosphere, such as rainwater pipes, drainage or empty unsealed sleeves.

A product with a U/U classification also covers U/C (Uncapped/Capped), C/U (Capped/Uncapped) and C/C (Capped/Capped) scenarios in line with the EN 1366-3:2021 test standard.

Open-ended pipe configurations can allow hot gases and flames to travel through the service, creating a more severe condition for the seal. Testing to U/U ensures that the seal performs under the most demanding conditions.

Multiple pipe diameters

The PROMASTOP-FC MD is suitable for multiple pipe diameters up to 160 mm and can be easily cut to length using scissors, reducing the need for numerous individual collars and different collar sizes. It can be applied to plastic pipe penetrations in flexible and rigid walls with 100 mm minimum thickness, as well as rigid floors ofh 150 mm minimum thickness.

The collar has achieved fire resistance rating EI120 U/U for use on PP and PE plastic pipes and multiple pipes in bundles in rigid and flexible walls. It has also been tested to provide up to 120 minutes’ worth of protection for PP, PE, PVC and multiple pipe bundles in rigid floors, including those fire stopped with FSi Promat’s own Stopseal Batt systems.

David Roulstone, national commercial and marketing manager at FSi Promat, said: “Using the testing and development expertise of our sister company Promat, we have now introduced the PROMASTOP-FC MD to our range. Not only does the U/U classification support compliance and performance, but it also delivers cost-effectiveness and functionality, allowing for on-site adjustments and quick and easy installation for a wide range of applications, such as flexible and rigid walls.”

Roulstone added: “FSi Promat already offers a range of sealing products designed to reinstate the fire resistance performance of floor and wall constructions where apertures exist. With the addition of the PROMASTOP-FC MD, we can now offer a system that our partners can be confident will maintain performance in real-world applications.”

Approved Document B

Approved Document B of the Building Regulations in England outlines detailed guidance on passive fire protection, requiring that any opening in a fire stopping element (such as a wall) for services like plastic pipes must be properly sealed in order to maintain a fire-resistant barrier. This helps to delay the spread of fire and smoke.

The PROMASTOP-FC MD solution effectively closes off pipes in the case of fire, with the intumescent technology expanding to seal the hole caused when plastic pipes melt.

In addition to its use with various composite pipes in walls and floors, the PROMASTOP-FC MD can be applied to approved pipe systems with acoustic installation, pipes approved in corner details of floors and those pipes with approved coupling.

“As part of The Etex Group of companies,” noted David Roulstone, “we are focused on offering a range of complementary solutions so that our customers can benefit from specialist knowledge and expertise from across the portfolio.”

In conclusion, Roulstone observed: “By adding this cut-to-size fire collar to the FSi Promat range, complementing products such as our sealants, compounds and batt and mastic solutions, we’re actively extending our offer to customers so that they can be confident in meeting performance and safety standards.”

*Additional detail concerning the PROMASTOP-FC MD product can be accessed at www.promat.com/en/construction/products-systems/products/fire-stopping/collarwrap2/promastop-fc-md/

**Further information is available online at www.promat.com