FIREPROOFING FOR STRUCTURAL STEEL
Vermiculite Fireproofing Spray
Amberlite Cementious Vermiculite spray is a tough, hard and highly stable passive fire protection coating applied to steel structures by spray. It can be also applied by troweling, when necessary. It is intended to prevent and delay the collapse of steel in the case of a fire by isolating it from high temperatures. It consists of a factory-produced blend of exfoliated vermiculite, cementitious binders and rheological and mix dispersing agents supplied as a dry mix to which clean water is added on site. It does not respond to any type of expansion, foaming, or chemical reaction to impart fire prevention qualities.
Key Benefits
- Up to 4 hours fire-protection
- Cost-effective
- Simple and Fast application
- Green Label Approval
Application
Amberlite is designed for installation by spray techniques. It is designed to be used both internally and externally. It can be applied to bare steel surfaces in a thickness of up to 30 mm at a time. The surface of the steel should be dry and free of dirt, oil, loose mill scale, flaking paint and loose rust.
Fire Performance
Amberlite is rated “Non-combustible” to BS476 Part 4:1970 and EN 13501-1 comply with performance requirements of “Class A1” as defined in Building Regulations.
It has been fully tested on structural steel beams and columns for up to 4 hours fire resistance in accordance with BS476 Part 21: 1987 and EN 13381-4.
The thickness of the fire protection material required for a given period of fire resistance is dependent upon the surface area of the steel member exposed to fire and its equivalent cross-sectional area (Hp/A) value for the section. Detailed information on the required thickness for Amberlite is available upon request.
Intumescent Paint
Intumescent fireproofing are thin film decoration coating designed for exposed applications where appearance is of primary importance. Finished off with an approved top coat, these fireproofing products are increasingly seen as the solution to achieving fire resistance ratings for exposed structural steel. Its fast-curing properties provide early weather resistance to rain within 1 hour and are suitable for both on-site and off-site applications. Providing a cost-effective approach to satisfy strict fire safety regime. Intumescent coatings when exposed to fire, expand and produce a charred coating, shielding the steel from heat.
Key Benefits
- Up to 2 hours fire-protection
- Fast-cure and Fast application
- Can be weather resistant
Fire Performance
Intumescent paint is tested to BS 476 Part 21:1987 on structural steel beams & columns for up to 2 hours fire resistance
Intumescent paint is rated “Class O” to BS 476 Part 6 & 7: 1970 compliance with the performance requirements of Building Regulation.
