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

Please contact technical@thermoguard.co.uk for specific data sheets