Please note should you be unsure whether this product/system is suitable for your requirements please download and complete the 'Thermoguard Wood Enquiry Form' and return by email to [email protected]

Upon receipt our team will respond within 24-48 hours with specification/advice on our best suggestion for your project. If you have any questions regarding this process consult our technical department on 0113 2455450 (option 2).

Thermoguard Fire Varnish Overcoat (Exterior) is a decorative lacquer for use over Thermoguard Fire Varnish Basecoat for EXTERIOR surfaces. Each 20m² pack of Thermoguard Fire Varnish Exterior Overcoat is sufficient to apply the required 2 coats to 20m² of surface area.

Restricted to professional users. Not for sale to, or use by the general public.

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• Intended Use
• Preparation
• Application and Drying Conditions
• Application
• Mixing Ratio
• Spray Equipment Recommendation for Thermoguard Fire Varnish Overcoat (Exterior)
• Tip

Intended Use

A decorative lacquer for use over Thermoguard Fire Varnish Basecoat for EXTERIOR surfaces.

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.

Spray Equipment Recommendation for Thermoguard Fire Varnish Overcoat (Exterior)

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.

Tip

If only applying to 20m² (or less) of area, mix half of the supplied base with half of the supplied activator.

Apply to 20m² of Thermoguard Fire Varnish Basecoat. Mix the remaining halves of base and activator and apply a second coat of Thermoguard Fire Varnish Exterior Overcoat 2>36 hours after first coat.

Restricted to professional users. Not for sale to, or use by the general public.

IMPORTANT FIRE PRODUCTS NOTICE: The information displayed on this website should be used as a guide ONLY and our Technical Department should be contacted to obtain a tailored specification and any advice necessary before you place an order for fire protection products. Fire protection products are non-returnable except in accordance with Condition 8 of the Terms and Conditions and should be applied only by an individual with the necessary expertise and experience. We will not be held liable for any resulting damage to property, human life or monetary costs incurred due to the incorrect specification you have prepared or use of fire protection products caused by your negligence, including your failure to have contacted us to obtain the relevant advice/specification.