Isoflex Special Primer

Isoflex Special Primer is ideal for preparing difficult roofing surfaces - old roofing felt, tiles, bricks, cracked bitumen and mastic repairs. It’s the perfect base for Isoflex Liquid Rubber.

J3059_Special Primer

Tough, durable basecoat

Dries in 4 hours

Use before applying Isoflex Liquid Rubber

Suitable for use on:

ALL TYPES OF ROOFING INCLUDING FELT, ASPHALT, SLATE & TILES

Stockists near you

Weather forecast

Please share your location to receive an accurate weather forecast

Today

Tomorrow

Come rain or shine, Thompson's got it covered

Drying Time

2-4 HOURS

Coverage

5 - 7m2 / litre

Sizes

750

Colours

Clear

Coverage

5 - 7m2 / litre

Sizes

750

Colours

Clear

Give the surface a decent scrub with a stiff bristle brush to remove any dust or dirt.

Treat any fungal growth with a fungicide and allow to dry.

Fill any cracks or holes, if needed.

Cut open any old felt blisters and apply a coat of Isoflex Liquid Rubber underneath and secure with felt tacks. 

For best results, use on a fine, dry day with temperatures above 10C.

Give the tin a really good stir before and during use.

Use a brush for this job and apply one generous coat across the whole roof.

It's just one coat, but on more porous surfaces you may need to apply a second coat after 4 hours.

Clean all of your equipment and any spills with Isoflex Clean up Fluid