Astroflame IFV Intumescent fire varnish basecoat is part of a fire protection varnish system with the option of a clear or stained finish for Fire Protection of timber and timber derivative substrates. The special formula provides a tough, durable finish to internal and external wood.

Clear or stained finishes enhance the natural beauty of the wood while fire protecting new and previously varnished surfaces. 1 coat Astroflame IFV Intumescent fire varnish basecoat plus 1 coat Astroflame FVO overcoat fire varnish clear or 2 coat woodstain. For damp or heavily cleaned areas apply 1 coat External overcoat. For external - 2 coats External.

• Saves Money and Time!
• For class 1, 0, & B s2 d0 - 1 coat basecoat + 1 coat Interior /2 coats exterior Overcoat.
• For 30/60 minutes - 3 coats basecoat + 1 coat Interior /2 coats exterior Overcoat.
• Contact Technical Dept: Tel: 01329 844 500 or Email: sales@astroflame.com

Intended use

Astroflame Fire Varnish is a varnish with the option of a clear or stained finish for Fire Protection of timber and timber derivative substrates. The special formula provides a tough, durable finish to internal and external wood. Clear or stained finishes enhance the natural beauty of the wood while fire protecting new and previously varnished surfaces. Fire Varnish Overcoat matt or satin provide protection against UV and wear.

Intumescent Fire Protection

When exposed to fire, Astro IFV Varnish (Basecoat) expands to create an insulating barrier, protecting timber surfaces from flames, heat and oxygen and suppressing emission of deadly smoke & gasses.

Clear and Stained Varnish Finishes

Astro IFV Varnish (Basecoat) is a clear finish which is then overcoated with Astro FVO Varnish (Overcoat)

• Astro IFV Varnish (Basecoat) available in 20 sq m
• Clear and stained Astro FVO Varnish (Overcoat) in 20 sq m + 80 sq m packs Matt or Satin

Specification and Application

Prepare and apply -

• 1 good or 2 standard coats Astro IFV Varnish (Basecoat)
• 1 coat*** Astro FVO Varnish (Overcoat) Clear or 2 coats Woodstain. Apply 1 > 4 days after basecoat dry

** Fruitwoods or damp areas 2 Astro FVO Varnish (Overcoat). EXTERNAL - 1 coat Astro IFV Varnish (Basecoat), 2 coats Astro FVO Varnish (Overcoat).
*** Fruitwoods, damp or high wear areas – 2nd coat Astro FVO Varnish (Overcoat).
*** EXTERNAL 2 coats Brush Grade Lacquer.

Application by painters, decorators and other professional users only. Refer to instructions on Fire Varnish Base & Overcoat containers.

Available in 20 square metre packs

We are happy to provided specifications and quotations - please use our specification form to ensure we cover all aspects of your fire protection and decorative  requirements in our quote. We accept any order size.

Prior to application the contractor should contact the Astroflame Technical Department (see above) to obtain a basecoat application schedule.

For help please speak to the technical team on: >> Tel: 01329 844 500 or >> Email: sales@astroflame.com

Previously Varnished & Stained Surfaces or Wood Preservers

Astro IFV Varnish (Basecoat) can be applied over firmly adhered standard clear varnish.
For existing stained varnishes, stain coatings, old fire coatings or if in doubt, contact Technical Dept.

• If preservatives are required, use rapid drying clear non waterrepellent grades.***
• For tanalised or other preservative treatments, contact Technical Dept.

***Allow adequate time for stain or preservative fluids to escape.

Fire Testing

Fire test standards in UKAS-accredited Fire Test laboratory

• BS EN Class B s2 dO **
• Class O *

Note – For 30 or 60 mins Fire Resistance, contact Technical Dept. Tel: 01329 844 500 or Email: sales@astroflame.com

** See NEW FIRE REGULATIONS & TESTS EXPLAINED
* Class 0 includes Class 1.

For certification and compliance with regulations the manufacturer will supply a Certificate of Supply on request.

Preparation

• Cover, countersink & fill, or use non-ferrous, galvanized, stainless or sheradised fittings
• Ensure surfaces are dry, clean and free of all contamination
• Varnished, sealed or non-porous wood should be abraded thoroughly with medium grade silicone carbide abrasive when dry to provide a good key.

Conditions

During application & drying of the full system

• Ensure surfaces are thoroughly dry – max 18% moisture content.
• Maximum relative humidity RH 75%. Ensure adequate ventilation.
• Minimum air temperature 6°C. Minimum surface temperature 3°C above dewpoint– avoid condensation.

New Fire Regulations & Tests Explained

• The new fire standard BS EN test lasts 20 mins. with airflow replaces the old BS 476 tests which lasted 10 mins and strangely restricted airflow.
• The new standard for flamespread and heat release Class B replaces Class 0.

The new BS EN tests also monitor -

• Smoke & Gas “s” – s1 + s2 are none or very low & compliant, s3 = moderate smoke, s4 = heavy smoke.
• Flaming Droplets or Airborne particulates – d0 is none, d1 = low, d2 = moderate d3 = high levels.

For more information contact us

Quality Assurance

All products are manufactured under ISO 9001.

Compatible Overcoats

When used as a primer, it can be overcoated with water-based or white spirit based paints

For data sheets, test reports and more information please copy and paste this link into your browser: https://www.astroflame.com/fire-retardant-varnish.html