Thermoguard Timbercoat Intumescent – Fire-Resistant Basecoat for Timber Protection

Thermoguard Timbercoat Intumescent is a specialised intumescent basecoat formulated to deliver 30 or 60 minutes of fire resistance for timber surfaces as part of a certified fire protection system. Designed for use on interior and exterior wood surfaces, this coating expands under heat to form a protective char, effectively insulating and shielding timber from fire damage.

This product must be used as part of a complete system, such as the Thermoguard Timbercoat 60-Minute System or Thermoguard Timbercoat BS Class 1/0 & EN Class B System, and requires a technical specification from the manufacturer prior to application.

Timbercoat Intumescent also provides exceptional adhesion and serves as the first layer for Thermoguard Smoke & Flame Retardant Dualcoat, ensuring optimal colour matching and performance when both coats are used in the same shade.

Key Features:

• Provides 30 or 60 minutes fire resistance (subject to specification)
• Suitable for interior and exterior use
• Exceptional adhesion and durability
• Used as Part 1 of the Thermoguard Timbercoat system
• Compatible with Thermoguard Smoke & Flame Retardant Dualcoat topcoat
• Certificate of Supply available on request
• Colour supplied as an undercoat shade – match topcoat colour for best results
• Must be applied according to an approved specification from the Technical Department

Surface Preparation

All surfaces must be clean and dry. Remove all possible surface contaminates such as grease, smoke residues, silicates etc.

Seal water-stain risks with stain blocking sealer suitable to overcoat with water-based acrylic paints.

Abrade hard or smooth surfaces with wetted 120 grit wet-or dry abrasive or dust extracting abrader. Rinse off slurry while still damp. When dry, remove any loose or suspect material back to firm edge.

Fill and repair any damage to the substrate using a good quality remedial filler 

Technical Data

Application Conditions

Min 8°C max 30°C. 

Conditions Max relative Humidity 75%.

Surface should be at least 3°C above the dew point, free from condensation 

Directions for Use

Apply at rate stated on can to protect surfaces & enable project Certification.

Brush & Roller - Woven fabric roller sleeves and synthetic bristle brushes

Spray - Pressure Pot & Gun conventional unit with small compressor: Ensure all traces of
solvent flushed out Thin 5 > 10% with water to spray viscosity. Adjust fluid flow & air flow as normal for acrylic emulsion paint OR Airless Graco 1500, 3500 or equivalent. 3/8” line, 30 mesh filter on machine, no filter in gun. 521 or 523, broad areas 621 or 623 tip
Ensure coverage is applied as per can i.e., 25 sqm can covers 25 sqm 

Enquiry Form

Thermoguard Wood Survey Form

Data Sheets

Thermoguard Timercoat Intumescent TDS

Thermoguard Timercoat Intumescent MSDS