Siniat Steel encasement (PROMATECT-XS)
4 system references
We are a supply and fit installation contractor, not the manufacturer. Information here is reproduced from manufacturers' literature for reference only; always confirm it directly with the manufacturer before specifying, ordering or installing.
Structural steel fire protection with single-layer PROMATECT-XS board (Siniat/Promat), tested to EN 13381-4 for up to 60 minutes; the board thickness needed depends on the steel's section factor (A/V). Taken from Siniat's PROMATECT-XS Structural Protection brochure (v2, December 2025). Use the filter to narrow by performance or board.
| Reference | Build-up | Fire protection (mins) | Max section factor (m-1) | Framed / frameless | |
|---|---|---|---|---|---|
| ST PXS-008-15 (4 sided Column) | 15mm PROMATECT-XS board, 4-sided column encasement, frameless (board edge fixed). Single layer only. Max section factor based on a limiting steel temperature of 500°C (columns) / 550°C (beams). | 60 | 140 | Frameless | |
| ST PXS-008-20 (4 sided Column) | 20mm PROMATECT-XS board, 4-sided column encasement, frameless (board edge fixed). Single layer only. Max section factor based on a limiting steel temperature of 500°C (columns) / 550°C (beams). | 60 | 300 | Frameless | |
| ST PXS-008-15 (3 Sided Beam) | 15mm PROMATECT-XS board, 3-sided beam encasement on Siniat Metal Angle. Single layer only. Max section factor based on a limiting steel temperature of 500°C (columns) / 550°C (beams). | 60 | 200 | Siniat Metal Angle | |
| ST PXS-008-20 (3 Sided Beam) | 20mm PROMATECT-XS board, 3-sided beam encasement on Siniat Metal Angle. Single layer only. Max section factor based on a limiting steel temperature of 500°C (columns) / 550°C (beams). | 60 | 351 | Siniat Metal Angle |
System references, build-ups and performance figures are Siniat's own data, reproduced here from Siniat Drywall Manual for reference only, with credit to Siniat.
Each reference links to Siniat's page for the full, current specification - always specify from Siniat's own documentation, HCI will not be held liable for a misspecification where this page has been used in lieu of the true manufacturer.
If you represent Siniat and have a query pertaining to this library, please email info@howeceilings.co.uk. Data retrieved 10 October 2026.
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