Thermoguard Thermocoat
(S)
Intumescent, solvent based paint for structural steel and cast iron. Provides up to 90 minutes fire resistance, maintaining the structural integrity of buildings.
For protection to exterior environment steels
For interior Universal Beams, Columns and other open section steel see Thermoguard Thermocoat WI Ultimate
For interior steel hollow sections, see Thermoguard Thermocoat WO Ultimate
UKAS/ EGOLF Fire Test Laboratory Certification to BS 476 Part 21
Fire Resistance to load bearing elements of structures
Contact our technical team for detailed advice and for certification
Recomended for external exposed steel not subject to pooling water
Spray application recommended for best finish in shortest time
Overcoat with Thermoguard Flame Retardant Topcoat after a minimum of 48 hours

Features & Benefits
- For protection to exterior environment steelsFor interior Universal Beams, Columns and other open section steel see Thermoguard Thermocoat WI Ultimate
For interior steel hollow sections, see Thermoguard Thermocoat WO Ultimate - Intumescent paint, solvent based system
- Use under a compatible decorative overcoat
- Insulates structural steel and cast iron for up to 90 minutes fire resistance
- Apply in accordance with film thickness schedule to achieve 30, 60, 90 min
- Refer below for application instructions
- Applied by brush, roller or airless spray
- Spray application recommended for best finish in shortest time
- UKAS/ EGOLF Fire Test Laboratory Certification to BS 476 Part 21
- Fire Resistance to load bearing elements of structures
- Contact our technical team for detailed advice and for certification
- Dries for handling after 24 hours
Preparation
- As this is a topcoat/overcoat for Thermoguard Fire Varnish Basecoat – please refer to Thermoguard Fire Varnish Basecoat data sheet or specification for details..
Application and Drying Conditions
Ensure adequate ventilation. Maximum relative humidity during application and drying should be 75% with a minimum air temperature of 6°C.
Minimum surface temperature should be 3°C above dew point.
Avoid condensation.
Application
Apply Thermoguard Fire Varnish Basecoat as per manufacturers instructions, ensuring spreading rates and number of coats are adhered to depending on the level of fire protection to be achieved.
Leave a minimum of 36 hours in good drying conditions to dry HARD.
Within 96 hours of of Thermoguard Fire Varnish Basecoat becoming and remaining dry, apply Thermoguard Fire Varnish Exterior Overcoat by brush, roller or spray.
Mixing Ratio
10:1 vol:vol base:activator.
Apply first coat at 60 microns wet film thickness to give 30 microns dry.
Allow to cure for at least 2 hours.
Denib.
Apply second coat between 2 and 36 hours after first coat.
If overcoating after more than 36 hours, abrade to remove gloss and leave overnight before recoating..
Project Fire Certification
Once the works are complete the relevant certification can be applied for HERE
Spray Equipment Recommendation
Conventional pressure pot and gun.
Up to 10% Thermoguard Spray Shop Lacquer Thinners may be added to ease application.
Application by airless spray with 11 thou tip up to 5% Thermoguard Spray Shop Lacquer Thinner may be added.
Avoid contamination of basecoat with solvent.
Each 20m² pack of Thermoguard Fire Varnish Exterior Overcoat is sufficient to apply the required 2 coats to 20m² of surface area.
- For Use By
- Professional Use
- For Use By
- Industrial Use
- Interior / Exterior Use
- Exterior Use
- Single, Two or Three Pack
- Single
- Parts
- 1
- Base Type
- Solvent-borne
- Solvent
- Intumescent compounds and resin binders, with high opacity pigments.
- Suitable Substrates
- Structural steel, cast iron
- Level of Protection
- Up to 90 minutes
- Key Features
- Provides fire resistance to structural steel and cast iron of up to 90 mins with a minimum number of coats.
- Touch Dry (at 20°C)
- 2-4 hours
- Dry to Handle (at 20°C)
- 24 hours
- Dry to Recoat (at 20°C)
- Minimum 6 hours (brush, roller); minimum 12 hours (spray)
- Coverage
- Contact Technical Department for Schedule
- Recommended Thinner/Cleaner
- Cleaning should be undertaken with xylene / cellulose thinners.
- Compatible Primers
- Thermoguard Steel Fire Paint Primer
- Compatible Topcoats
- Thermoguard Flame Retardant Topcoat
- Min. Application Temperature
- 4°C
- VOC
- 398 gm / lit
- Dry for Topcoat (at +20°C)
- Min. 24 hours (brush, roller); min. 48 hours (spray)
- UN Number
- UN1263
- Base Type
- Solvent-Based
- Product Range
- Thermocoat
- Best Seller
- Best Seller
- Fire Rating
- 30 Minutes
- Fire Rating
- 60 Minutes
- Fire Rating
- 90 Minutes
- Site Application
- On-Site