Durable beauty. Economic solutions. Easy to install

FSi is a division of the global Etex Group. Established in 1958, Promat are globally renowned for technical expertise in fire protection, whilst FSi have over 23 years of specialist knowledge in fire stopping products and are one of the leading manufacturers in the UK. Together, their 88 years of combined expertise ensures that their customers can access a comprehensive range of fire stopping solutions, backed by a wealth of knowledge and experience; all whilst they continually strive to deliver the highest quality products and service in fire safety.

PRODUCT DEVELOPMENT & TESTING – NO COMPROMISE: With in-house R&D facilities and a rigorous testing plan, FSi Proamt puts their reputation for product performance at the heart of everything we do. FSI’s products are tested to international standards and carry Third Party Certification, giving peace of mind to customers whenever they specify and install their products & systems. They understand the importance of working with customers to innovate new solutions to real-life applications, which sees them continuously increasing the scope of application of their products and systems.

Paraflam SEB

Silverliner Open State Cavity Barrier


Key features

‘Dry fit’ solution, no cure time


Minimal waste


Fast installation

Assumed working life of 25 years










Range Dimensions Thicknesses Air Gap
Silverliner Open State Cavity Barriers 1000mm x 75mm
1000mm x 120mm
Mineral fibre 80kg/m³ <50mm
Paraflam Seb 1200mm x 1000mm Nominal 80kg/m³



Silverliner Open State Cavity Barrier Safety Data Sheet 

Silverliner Open State Cavity Barrier Technical Data Sheet

Paraflam Safety Data Sheet 

Paraflam Technical Data Sheet


For more information on FSI, please contact your local branch.