Description
THERMOCOAT S INTUMESCENT PAINT FOR STRUCTURAL STEEL AND CAST IRON
Key Benefits:
Thermocoat S is a solvent based intumescent coating. The range of topcoats are either water-based or 2010 compliant and safe
to use in accordance with manufacturer’s instructions.
Dry Internal: Apply Thermocoat S in accordance with Thermoguard film thickness schedule to achieve 30, 60, 90 minutes.
Visible or occasional modest damp internal areas: Also apply 1 good coat Thermoguard Flame Retardant Paint
Wet or External Under Cover: Apply 2nd coat Flame Retardant paint
Full External Exposure: Contact Technical Dept.
Thermocoat S can be topcoated with Flame Retardant gloss, eggshell, WB satin, WB matt BS 4800 & RAL colours.
Intended Use:
Thermocoat S is optimised to protect shaped steel and hollow bracing. It is a solvent based intumescent paint system providing
fire resistance to structural steel and cast iron of up to 90 minutes with a minimum number of coats. A compatible decorative
overcoat system ensures the system will enhance the building’s architectural and design features.
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.
Pack Sizes:
Available in 20kg, 10kg, 2.5kg
Coverage:
Prior to application the contractor should contact Thermoguard’s Technical Department and obtain a basecoat
application schedule or follow on can guidance. Do not overspread as this will compromise the system and
result in non-compliance and a failure to be certified
Drying Times:
Brush/roller application Surface dry: minimum 2 hours, Handle minimum 24 hours
Recoat: minimum 6 hours
Overcoating with Flame Retardant finish: minimum 24 hours
Spray Application Surface Dry:
minimum 4 hours, Handle minimum 24 hours
Recoat: minimum 12 hours
Overcoating with Flame Retardant finish: minimum 48 hours
Preparation:
Steel and cast iron should be free from rust and millscale and primed with Thermoguard Steel Fire Paint Primer to 75 microns
DFT ( or alternative good quality anti-corrosive primer compatible with intumescent paints) in accordance with manufacturer’s
instructions. Treat galvanised surfaces with “T” wash/Mordant solution & prime with zinc phosphate or other primer for steel.
Application Conditions:
Maximum Relative Humidity 80%
Minimum ambient temperature 4°C
Minimum Steel Temperature 3°C above Dew Point
THERMOCOAT S
THERMOGUARD UK Ltd Kirkby Street, Hull, HU2 0HE. Tel: 01142 768008 Email: technical@thermoguard.co.uk www.thermoguard.co.uk
Application:
Thermocoat S 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 Thermoguard’s 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 – 600 microns
Maximum wet film thickness per spray coat – 1000 microns
Spray:
Spray Equipment- Airless Spray Pump
Use equipment recommended by manufacturer for the application of high viscosity intumescent paints.
Filter size 30 mesh. 10mm hose 3/8” diameter with no whip end
Tip Size 321,323,421,423
Care should be taken to clean filters regularly. Cleaning should be undertaken with xylene/cellulose thinners.
Fire Certification:
Thermoguard issue a Certificate of Supply on request for each specified project for insurance, Fire and Building Control Authority
and Client Records.
VOC Content:
EU limit for this product (cat A/i) is 500 g/l. This product contains 398 g/lv
Composition:
Intumescent compounds and resin binders, with high opacity pigments
