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Product images: the manufacturer (official).
SFRM · exposed and industrial
Medium- and high-density cementitious spray
Denser cementitious sprays with a harder surface for exposed steel, car parks, plant rooms and industrial structures, including hydrocarbon-rated systems.
- Medium / high
- Density class
- 1 – 4 h
- Typical rating
- Exposed, humid, industrial
- Exposure
Supplied by World Steel with your steel building or on its own – one order, one shipment, one partner.
Overview
About Medium- and high-density cementitious spray
Higher density gives better impact, abrasion and weather resistance.
Some grades are listed for hydrocarbon fires on petrochemical structures.
Topcoats available for appearance and protection.
Key benefits
- Durable in exposed and humid areas
- Hydrocarbon-rated grades for industry
- Economical for heavy members
- Resists impact and abrasion
World Steel · building envelope hub
How we use Medium- and high-density cementitious spray in steel buildings
World Steel coordinates sprayed fire protection with the steel: compatible primers, clean surfaces and member-by-member thickness schedules from the fire design.
- 01Specified with the structure – thickness, density and facing matched to the roof, wall and fire design.
- 02Quantities taken from the same 3D model as the steel, purlins and cladding.
- 03Packed and shipped with the steel package – one delivery schedule to site.
Applications
Where Medium- and high-density cementitious spray is used
- Exposed steel in car parks and plant rooms
- Industrial and petrochemical structures
- Humid and semi-exterior areas
Technical data
Medium- and high-density cementitious spray – technical properties
Typical properties
| Property | Unit | Value |
|---|---|---|
| Density | — | medium and high grades |
| Typical rating range | h | 1 – 4 |
| Test standards | — | ASTM E605 · ASTM E736 · UL 263 / UL 1709 for hydrocarbon grades |
Values as published by the manufacturer for this market. Always check the current data sheet and the approvals required for your project before ordering.
Sprayed fire-resistive materials
Related products
SFRM · concealed steelLow-density cementitious sprayView product →SFRM · gypsum-basedGypsum-based sprayed fireproofingView product →SFRM · medium densityMedium-density cementitious sprayView product →SFRM · lightweightVermiculite / perlite sprayView product →← Cementitious and mineral spraysSprayed Fire-Resistive Materials (SFRM) →
FAQ
Frequently asked questions
What thickness of medium- and high-density cementitious spray do I need?
It depends on the member size (section factor), the critical temperature and the required fire rating – the fire engineer or the manufacturer's tested data gives a thickness for each member.
Does World Steel supply branded products?
Yes – we supply the brand and listed system your specification or authority requires. This page describes the product type.
One partner for structure and envelope
Send us your drawings or bill of quantities – we quote the steel, insulation, boards and ceilings together and ship them as one package.