• Britannia Universal QD Sealer-Primer will be dry under normal conditions in 2-4 hrs depending on humidity and temperature and can be overcoated when dry

Preparation

Cleaning Of Substrate:

• Clean the surface with a powerwash of up to 2,000 psi, depending on the substrate
• If needed clean the area with Britannia Fungicidal Wash, this eliminates all moss/algae
• The wash must be applied and left on the substrate for 7 days, then washed off prior to the application
• The substrate must be dried off using squeegees/rags. Gas guns should not be used
• Once the substrate is clean and dry you can then begin the application

Repairs To Substrate:

Including splits, cracks, joints, seals and crazed areas:

• Repair faults in the surface by using a high quality waterproof mastic/filler
• Apply Universal QD Primer-Sealer followed by the waterproofing system to repaired areas incorporating Britannia Reinforcing Scrim overlapping by 5cm

Priming Of Substrate:

For PVC, Hypalon, TPO Roof Membranes and Plastisol coated substrates:

• It is good practice to inspect and carry out adhesion tests on any existing coating or aged single ply substrate prior to the application of the coating
• Follow the pull/adhesion test procedure to access the suitability of the system (see technical data sheet)

Application

• Stir well before use
• Do not thin
• Please follow the Coverage rates shown in Spreading Rate Section
• To the dry and cleaned surface, apply a generous coat of Britannia Universal QD Primer-Sealer by brush or roller
• The substrate and ambient temperature for the application of the system must be between 2°C and 35°C
• DO NOT APPLY to frozen or damp surfaces
• DO NOT APPLY in hot direct sunlight or coating may skin
• Work away from the area immediately being applied and toward a suitable escape access
• Do not walk on newly coated surface whilst application is in progress
• After application the substrate should have a slight glaze

Cleaning

• For cleaning equipment use Special Solvent

Shelf Life & Storage

• Up to 2 years if stored correctly in an unopened container

Precautions

• Flammable keep away from sources of ignition
• Ensure good ventilation during application
• Wear gloves, goggles and suitable protective clothing
• 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
• Toxic to aquatic organisms
• May cause long term adverse effects in the aquatic environments
• Do not empty into drains
• Britannia Universal QD Primer-Sealer is not recommended for the treatment of fish or aquatic ponds or internal use
• Air conditioning vents should be sealed for a minimum of 24 hours during and after the application
• Not for use on Walkways, Balconies, tanking, fish and aquatic ponds, new lead, Single Ply Membranes - Plasticised PVC (Plastisol) gutters, slate or internal use
• Cannot be used as a topcoat
• DO NOT USE ON NEW BITUMINOUS PRIMERS/COATINGS OR SURFACES
• MINIMUM FINISHED FALL: when using this product it is important that a minimum finished fall of 1:80 is achieved, as stated in BS 6229.2003 (Code of Practice for the application of Liquid Applied Waterproofing Systems to flat roofs with continuously supported coverings)