Thermoguard Safewalls Insulating Basecoat is part of a two-coat system designed to upgrade painted internal walls and ceilings to meet BS EN Class B s1 d0 fire safety standards. It forms a solid foundation for flame, smoke and toxic fume control in homes, offices and high-occupancy buildings.

Applied before the Safewalls Anti-Viral Smoke & Flame Retardant Topcoat, it delivers excellent adhesion to previously painted surfaces - even those with multiple unknown coatings and is available in undercoat shades to match your final colour.

Ideal for care homes, hospitals, schools and housing associations, the system also offers anti-viral and anti-bacterial protection, helping prevent the spread of germs on high-contact surfaces.

A clean, professional finish with added peace of mind – all in just two coats.

Technical Data

• Fire Rating: BS EN Class B s1 d0 (Class 0 compliant)

• System Use: First coat in 2-part fire protection and hygiene system

• Drying Times: Touch dry in 1 hour, recoat after 4 hours

• Coverage: 25m² or 50m² pack sizes

• Application: Brush, roller, or spray

• Finish: Undercoat tint (to match topcoat)

• VOC Content: 16 g/l (low)

• Composition: Acrylic resin, catalytic powder, insulating agents

Surface Preparation

• Clean surfaces of grease, dust, smoke, or silicates

• Seal water stains with appropriate blocker

• Abrade smooth surfaces with 120-grit, rinse & dry

• Fill defects with a high-quality filler

Directions for Use

1. Apply one coat of Safewalls Insulating Basecoat by brush, roller or spray at labelled spreading rate

2. Ensure surface is above 8°C and below 30°C, with humidity <75%

3. Overcoat after 4 hours with Safewalls Anti-Viral Smoke & Flame Retardant Topcoat in the same colour

4. Certify the project post-application via Thermoguard

Data Sheets

Thermoguard Safewalls Insulating Basecoat - TDS

Thermoguard Safewalls Insulating Basecoat - MSDS

Thermoguard Safewalls Insulating Basecoat Brochure