FSi Firestopping

About Us

Founded in 2000, FSi Promat has steadily grown into one of Europe’s leading manufacturers of firestopping and cavity barrier systems. Our success is built on trusted relationships, technical expertise, and a commitment to quality and compliance.
Since joining the Etex group in 2020, FSi Promat has continued to evolve – benefiting from global fire protection knowledge while maintaining the customer-first service and dependable support we’ve always been known for.

Product Development & Testing - No Compromise

With our own in-house R&D facilities, we place product performance at the core of what we do. All systems are rigorously tested to international standards and backed by third-party certification, giving our customers peace of mind from specification through to installation.

Technical Support - No Compromise

Our technical team brings decades of combined experience and are on hand to support your project requirements with clear, accurate advice and fast response times. We’re continually developing new solutions to meet the changing needs of the fire protection industry, expanding the scope and flexibility of our systems in real-world applications.

Customer Service - No Compromise

Our outstanding customer service and logistical expertise set FSi apart from the competition. With deliveries fulfilled by our in-house distribution team – Firesafe & Sound Ltd (FSS); you can trust FSi Promat to seamlessly manage your orders and get products to site when you need them.

We offer next day delivery on our passive fire protection range, and industry leading lead times on our bespoke open state cavity barriers. Or same day collections are available from our warehouse in Grays, Essex. Contact the team to find out more: sales@firesafeandsound.com or call +44 (0) 1708 890524.

At FSi Promat, we’re proud of our journey and excited about the future – continuing to raise the bar for firestopping solutions through technical innovation, compliance, and trusted service.

Explore Products

Shop Online

Our Firestopping Products

Our firestopping range helps maintain the fire resistance of walls, floors, and service penetrations—supporting safe compartmentation in line with UK regulations and third-party testing standards.

Sealants, Coatings & Mortar

Flexible sealants, spray-on coatings and dry-mix mortars for reinstating fire resistance in linear joints and around service penetrations. Suitable for a wide range of substrates and construction details.

Collars & Wraps

Intumescent collars and wraps that expand in fire conditions to seal around combustible pipework. Available in pre-formed or roll formats for ease of installation.

Pillows, Coated Batts & Putty

Graphite-based pillows, stone wool coated batts, and intumescent putties for sealing larger voids, socket boxes, and irregular service openings. Designed for versatility and ease of access.

Peno Patch & Putty Pads

Intumescent pads and patches for sealing electrical boxes or small penetrations in plasterboard partitions.

Transit Systems

Modular sleeves for cable and pipe penetrations, allowing for fire protection without compromising on future access and flexibility.

Our Cavity Barriers

Our cavity barriers are designed to maintain essential ventilation during normal conditions while providing robust fire protection when it matters most. Each product is tested to meet the highest safety standards for use in modern façade and curtain walling systems.

Paraflam® SEB

A stone wool perimeter fire stop for curtain walling and rainscreen façades. Offers fire resistance with added thermal and acoustic performance. Foil facing prevents fibre migration and supports a tight seal.

Silverliner® OSCB

An open state cavity barrier for ventilated façades, allowing for a 25mm or 50mm air gap. The intumescent edge expands in fire conditions, closing the gap to restrict the spread of fire and smoke.

Flexi Coat

A flexible sealing system for penetrations and apertures, available as pre-coated fingers or applied on-site. Tested to EN1364-4 and third-party certified.

Tools & Services

We support your specification and installation process with a range of tools, training, and responsive support — helping you deliver compliant, effective fire protection with confidence.