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产品图片：制造商（官方）。
SFRM · concealed steel
Low-density cementitious spray
A light cementitious spray for steel hidden above ceilings and inside walls – fast to apply over large areas, ratings up to about four hours.
- Low
- Density class
- up to ≈ 4 h
- Typical rating
- Interior, concealed
- Exposure
由 World Steel 随您的钢结构建筑一并供应或单独供应 – 一份订单、一次发运、一个合作伙伴。
概览
关于Low-density cementitious spray
Sprayed directly onto clean, primed or bare steel as specified, in one or more passes.
Thickness set by the member, rating and listed design – measured to ASTM E605.
Covered by ceilings or linings – not for exposed, wet or high-traffic areas.
主要优势
- Lowest cost per m² for long ratings
- Fast application over large areas
- Covers complex shapes and connections
- Also protects metal decks
World Steel · 建筑围护材料中心
我们如何在钢结构建筑中使用Low-density cementitious spray
World Steel coordinates sprayed fire protection with the steel: compatible primers, clean surfaces and member-by-member thickness schedules from the fire design.
- 01与结构一同选型 – 厚度、密度和饰面与屋面、墙面及防火设计相匹配。
- 02工程量取自与钢构件、檩条和围护板相同的 3D 模型。
- 03与钢结构包一同包装发运 – 一份到场交货计划。
应用
Low-density cementitious spray的应用场合
- Concealed beams and columns in offices and hotels
- Steel and metal decks above ceilings
- High-rise steel frames
技术数据
Low-density cementitious spray – 技术性能
Typical properties
| 性能 | 单位 | 数值 |
|---|---|---|
| Density | kg/m³ | low – typically ≈ 240 – 350 |
| Typical rating range | h | 1 – 4 |
| Test standards | — | ASTM E605 (thickness, density) · ASTM E736 (cohesion / adhesion) · UL 263 · EN 13381-4 |
数值为制造商针对该市场公布的数据。订货前请务必核对最新数据表及项目所需的认证。
Sprayed fire-resistive materials
相关产品
SFRM · gypsum-basedGypsum-based sprayed fireproofing查看产品 →SFRM · exposed and industrialMedium- and high-density cementitious spray查看产品 →SFRM · medium densityMedium-density cementitious spray查看产品 →SFRM · lightweightVermiculite / perlite spray查看产品 →← Cementitious and mineral spraysSprayed Fire-Resistive Materials (SFRM) →
FAQ
常见问题
What thickness of low-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.