Watco Asphalt Crack Filler

Watco Asphalt Crack Filler is a rubberised bitumen based product that makes crack repairs easy and gives long lasting protection against ingress of water.

Best Uses

Asphalt Crack Filler makes crack repairs easy. Use in car parks, school playgrounds, walkways and  tarmac and asphalt surfaces. It is ideal for filling cracks up to 3mm wide (cracks 3-25mm wide can be filled by mixing Watco Asphalt Crack Filler with sand). Suitable for use both inside and outside, Watco Asphalt Crack Filler provides excellet adhesion and can be overcoated with Watco Asphalt Paint or Watco Black top if required.

Application

First you will need to fully prepare the surface by sweeping or scraping out any loose debris.

Mix well before use. Do not use in wet or cold (below 5°C) conditions. Damp or cold weather will delay the drying time. The crack should be reasonably dry, although a little dampness may be tolerated.

Cracks up to 3mm wide: Pour the Watco Asphalt Crack Filler into the cracks using a spouted jug or alternatively you could use a watering can. Brush out any surplus liquid which overflows the edges of the crack to a thin film. Once the Watco Asphalt Crack Filler has dried, dust with very fine sand or cement to remove any residual tack.

Cracks 3mm - 25mm wide: Prime the sides of the crack with a brush coat of Watco Asphalt Crack Filler. Mix the filler with damp sand to produce a slightly stiff mortar. Trowel into the crack and smooth off. Once the mortar is dry, dust with very fine sand or cement to remove any residual tack.

Drying times vary widely depending upon weather conditions and size of crack. Dry, warm conditions will accelerate drying. The product sets by evaporation of water therefore damp, cold conditions will delay drying. As a guide, approximately 2-4 hours should be allowed for cracks up to 3mm and 6-10 hours for cracks up to 25mm.

Important: This product is designed for use on bitumen based surfaces. It could soften surfaces which contain coal tar. If in doubt, apply a test area and check after 24 hours that no softening has occurred. For further information please contact our Technical Team for advice.