ROOF SEAL

MAIN ATTRIBUTES

• Water repellent
• Excellent flexibility
• Roof & Paving Paint adheres well to it
• Available in Grey, Red and White
• 100% lead-free

GENERAL DATA

• Drying Time: 2 Hours
• Recoating Time: 2 Hours
• Application: Brush or roller
• Thinning: Not recommended
• Spreading Rate: 2 – 3m²/litre with membrane 4 – 5m²/litre without membrane (not recommended)
• Cleaning: Water
• Coats: 2 or more, completely covering the membrane. Allow to dry between coats.
• Stir thoroughly with a flat paddle before use

Note

• Do not paint early in the morning or late afternoon, as the roof may be covered in dew or frost, especially during winter months.
• Do not paint on extremely hot days as small bubbles (Heat Blisters) may form and weaken the film.

SURFACE PREPARATION

All surfaces must be clean, dry, sound, free from grease, oil, dirt and other surface contaminants.

New Surfaces

New Flatdecks:
Ensure that concrete is dry and free of dust and other surface contaminants. Remove mould and algae with Top Paints’ General Purpose Cleaner, rinse thoroughly and allow to dry. ROOF SEAL and membrane should be applied to all cracks, expansion joints and 90° joints. Apply 1 coat ROOF SEAL liberally to all areas where membrane will be placed. Dab the membrane in to the ROOF SEAL by using the brush. Apply the membrane in sections of 30 – 40cm at a time ensuring that the ROOF SEAL is still wet. Apply 2 coats over the membrane, allow sufficient drying time between coats.

Cement Roof Tiles:
Ensure that tiles are dry and free of dust and other surface contaminants. Remove mould and algae with Top Paints’ General Purpose Cleaner, rinse thoroughly and allow to dry. Apply 1 coat ROOF SEAL liberally to all areas where membrane will be placed. Dab the membrane in to the ROOF SEAL by using the brush. Apply the membrane in sections of 30 – 40cm at a time ensuring that the ROOF SEAL is still wet. Apply 2 coats over the membrane, allow sufficient drying time between coats.

Cement Plaster Parapets:
With a soft bristle broom brush down the parapets. Apply 1 coat of Top Paints’ Plaster Primer and allow to dry. Apply 1 coat ROOF SEAL liberally to all areas where membrane will be placed. Dab the membrane in to the ROOF SEAL by using the brush. Apply the membrane in sections of 30 – 40cm at a time ensuring that the ROOF SEAL is still wet. Apply 2 coats over the membrane, allow sufficient drying time between coats.

New Galvanised Iron:
Clean with Top Paints’ Degreaser to remove fabricator’s pre-treatment oil, grease and other contaminants. Rinse with clean water until water break-free film is achieved, allow to dry. Prime with Top Paints’ Water-based Zinc Phosphate Primer the same day and allow to dry. Apply 1 coat ROOF SEAL liberally to all areas where membrane will be placed. Dab the membrane in to the ROOF SEAL by using the brush. Apply the membrane in sections of 30 – 40cm at a time ensuring that the ROOF SEAL is still wet. Apply 2 coats over the membrane, allow sufficient drying time between coats.

Weathered Galvanised Iron:
Remove any rust by means of wire brush, sandpaper or abrasive blasting. Prime with Top Paints’ Water-based Zinc Phosphate Primer the same day and allow to dry. Apply 1 coat ROOF SEAL liberally to all areas where membrane will be placed. Dab the membrane in to the ROOF SEAL by using the brush. Apply the membrane in sections of 30 – 40cm at a time ensuring that the ROOF SEAL is still wet. Apply 2 coats over the membrane, allow sufficient drying time between coats.

Previously Painted Surfaces

Old Flatdecks:
Remove previous system, where adhesion has been lost. Wash surface in order to remove dust and other surface contaminants. Allow to dry. ROOF SEAL and membrane should be applied to all cracks, expansion joints and 90° joints. Apply 1 coat ROOF SEAL liberally to all areas where membrane will be placed. Dab the membrane in to the ROOF SEAL by using the brush. Apply the membrane in sections of 30 – 40cm at a time ensuring that the ROOF SEAL is still wet. Apply 2 coats over the membrane, allow sufficient drying time between coats.

Previously painted with Bitumen Aluminium:
Remove all Bitumen Aluminium and treat as new work.

Previously painted with Emulsion paint:
Clean surface and apply directly.

Packaging
1, 5 and 20 litres.

Storage
Store away from direct sunlight, heat and severe cold. Keep container sealed and avoid moisture contact.

Caution
During Winter months painting should be restricted to between 09H00 and 15H00, in Summer painting can be done between 08H00 and 16H00. Exterior surfaces – Do not paint if rain is imminent.

DATASHEETS

• For full Technical and Material Safety Data Sheets, please contact Paintwise or send an enquiry to paintwise@vodamail.co.za