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Product images: the manufacturer (official).
SFRM · medium density
Medium-density cementitious spray
A step up in hardness and durability from low-density sprays, for steel that is not fully concealed.
- Medium
- Density class
- Interior, semi-exposed
- Exposure
- Per listed design
- Rating
Supplied by World Steel with your steel building or on its own – one order, one shipment, one partner.
Overview
About Medium-density cementitious spray
Medium-density sprays offer better resistance to damage and humidity than low-density products while staying economical for long ratings.
Thickness is set by the listed design or tested data; density, cohesion and bond are verified on site.
Topcoats can be added for appearance or cleanability.
Key benefits
- More robust than low-density sprays
- Suits plant rooms and car parks
- Economical for long ratings
- Can take a protective topcoat
World Steel · building envelope hub
How we use Medium-density cementitious spray in steel buildings
World Steel coordinates surface preparation and member thickness schedules with the sprayed system.
Product-specific test reports, classification reports and certificates are supplied for the product selected for each project – this page describes the product type, not a certified product.
- 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-density cementitious spray is used
- Plant and service rooms
- Car parks and loading areas
- Industrial interiors
Technical data
Medium-density cementitious spray – technical properties
Typical properties and standards
| Property | Unit | Value |
|---|---|---|
| Test methods | — | ASTM E605 · ASTM E736 · ASTM E761 (bond impact) · UL 263 · EN 13381-4 |
| Exposure | — | Interior and semi-exposed, per manufacturer |
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 · exposed and industrialMedium- and high-density cementitious sprayView product →SFRM · lightweightVermiculite / perlite sprayView product →← Cementitious and mineral spraysSprayed Fire-Resistive Materials (SFRM) →
FAQ
Frequently asked questions
When should I choose medium rather than low density?
Where the steel can be touched, cleaned or exposed to humidity – low density is for fully concealed steel.
Is this product certified?
Certification belongs to a specific manufacturer’s product or tested system. We supply the test report, classification or listing accepted in your market for the product selected – it is confirmed per project, never assumed.
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.