• Up to 6-7 days depending on temperature and thickness of coating
• The product may remain soft for a further period depending on climatic conditions, this is not detrimental to the waterproofing qualities of the product

Not suitable for heavy foot-traffic areas.

Preparation

Clear all areas of moss, lichen and debris by brushing or power washing and remove surface water and any contamination such as Oil or Grease and allow to dry. Apply Britannia Fungicidal Wash to prevent further fungal/algal growth.

Most roofing substrates to be treated will not normally require priming.

Highly porous/friable surfaces:

• These Surfaces must be jet washed prior to applying the Britannia Aquashield Primer
• Concrete, Concrete and Asbestos Cladding, Sheeting and Guttering should be primed with Britannia Aquashield Primer (see separate technical sheet) prior to over coating with Britannia Aquashield Waterproof Roof Coating
• Fibrous cement corrugated sheeting: two coats of Aquashield Primer must always be applied to this substrate

Metal Surfaces:

Including:

• Ferrous-new, weathered and previously painted galvanised iron and steel
• Non-Ferrous Metals - Aluminium sheeting & Aluminium Alloy Box gutters and previously painted non-ferrous metals

All these areas should be suitably prepared and primed as appropriate (see separate technical sheet) before application of Britannia Aquashield Waterproof Roof Coating.

Non-porous substrates:

• Slate, polished bricks should be power washed abraded and completely dry, free from any contamination to achieve adhesion of the Britannia Aquashield Waterproof Roof Coating

Bitumen surfaces:

• Discolouration may occur over a new asphalt, tar or bitumen surfaces; therefore an extra coat may be required, for decorative purposes only. Aged bitumen can be liable to crack, therefore further advice must be taken

Previously painted or coated substrates:

• It is good practice to inspect and carry out adhesion tests on any existing coating or substrate pior to application of the coating

Splits, cracks, joints and seals, crazed areas:

• Pay particular attention to clean out any splits/cracks/joints and seals by scraping or brushing off with a stiff bristle brush before applying the Britannia Aquashield Primer. Repair all faults in the surface by using a proprietary filler.

Surface faults:

• Repair all faults in the surface with either Britannia’s Reinforcing Scrim in the first of two coats or using a proprietary filler

In areas where excessive movement may occur, additional reinforcement must be incorporated into the coating.

Application

• To the dry and cleaned surface, apply a generous coat of Britannia Aquashield Waterproof Roof Coating by brush, squeegee
• Please follow the Coverage rates shown in Spreading Rate Section
• Apply between 5°C - 25°C
• As dictated by normal good painting practice. In confined spaces, provide adequate ventilation during the application and drying

Cleaning

• For all cleaning use white spirit

Shelf Life & Storage

• Up to 2 years if stored correctly in an unopened container
• Store in a safe place in accordance with the instructions in section 7 of the relevant MSDS sheet

Precautions

• Flammable keep away from sources of ignition
• Ensure good ventilation during application
• Wear gloves, goggles and suitable protective clothing
• Over occupied premises during insulation of coatings we would advise keeping windows closed
• In case of contact with eyes rinse immediately with plenty of water and seek medical advice
• Remove splashes from the skin with a recognised hand cleaner or plenty of soap and water
• Keep out of reach of children
• Do not use near fishponds
• Harmful to aquatic organisms. May cause long term adverse effects in the aquatic environments
• Do not empty into drains