THERMOCOAT
Intumescent Paint for Structural Steel & Cast Iron
INTENDED USE
Thermocoat is an economical, water based intumescent paint system providing fire resistance to structural steel and cast iron for up to two hours with a minimum number of coats. A compatible decorative overcoat system ensures the system will enhance the building’s architectural and design features.
ECONOMY AND SPEED
Thermoguard Thermocoat is designed for use on larger projects where our technical team can advise the exact amount of Thermocoat required, keeping costs down and making application easier. ½ hour and 1hour fire resistance can be achieved with a single application of Thermocoat. 1½ hour fire resistant can be achieved with just two coats of Thermocoat.
Thermocoat W is a low odour, water-based coating, making it user and environmentally friendly. The range of topcoats are either water-based or 2010 compliant and safe top use in accordance with manufacturer’s instructions.
HOW IT WORKS
The heat of a fire triggers a catalytic reaction, causing the expansion of an insulating char layer up to 50 times the paint thickness. This layer keeps the steel below its critical temperature, thus maintaining the structural integrity of the building.
FIRE TESTING
Product performance assessment based upon UKAS/NAMAS Fire Test Laboratory Certification to BS 476 Part 21
- Fire resistance to load bearing elements of structures.
Please consult technical department 0113 2455450 for detailed specification advice.
FIRE CERTIFICATION
A Certificate of Supply is issued on request for each specified project for insurance, Fire and Building Control Authority and Client Records.
PREPERATION AND PRETREATMENT
• Steel and cast iron should be free from rust and millscale and primed with High Build Metal Primer to 75 microns DFT (or alternative good quality anti-corrosive primer compatible with intumescent paints) in accordance with manufacturer’s instructions. Galvanised steel should be degreased and primed with a suitable etch primer.
• High Build Metal Primer may be left without further overcoating or decorated with appropriate conventional paint where no fire resistance is required.
SPECIFICATION
Apply Thermocoat to achieve fire resistance in accordance with the instructions provided by the technical department. When steel is visible or subject to variable or damp atmospheric conditions, apply 1 coat of Flame Retardant Paint (available in Gloss, Eggshell or Matt finishes).
APPLICATION
• Thermocoat W may be applied by brush, roller or airless spray. To achieve the best finish in the shortest time, spray application is recommended. Prior to application the contractor should contact the technical department and obtain a basecoat application schedule. To assist correct application in accordance with this schedule, a wet film gauge will be supplied with the order. Further wet film gauges will be provided on request.
• Maximum wet film thickness per brush coat – 800 microns
• Maximum wet film thickness per spray coat – 1400 microns
RECOATING
Brush/roller application
• Surface dry: minimum 2 hours
• Recoat: minimum 4 hours
• Overcoating with Flame Retardant finish: minimum 10 hours
Spray application
• Surface dry: minimum 4 hours
• Recoat: minimum 10 hours
• Overcoating with Flame Retardant finish: minimum 48 hours
AVAILABILITY
Thermocoat is available in 20kg, 5kg and 2.5kg containers. Flame Retardant Finishes are available in 2.5L and 5L sizes in a wide choice of colours and finishes.
TECHNICAL ADVISORY AND ESTIMATING SERVICE
Rawlins in-house estimators provide realistic, confidential guidance on project costing to contractors and quantity surveyors. We also provide expert advice and assistance with all aspects of specification and application.
Coverage: As specified by Technical Department
Touch Dry: See 'Recoating' above
Application: Brush, Roller, Spray Disclaimer
Please download and carefully read product datasheets before application
|
