Britannia Durashield FD Primer is a fast drying primer which offers vital stabilisation of highly friable/porous surfaces prior to application of Durashield topcoat.
It is supplied ready for use on highly friable/porous surfaces e.g. Concrete, Asbestos Cladding, Sheeting and Guttering, OSB/Plywood, Wooden Substrates and EPDM.
Can be brush, roller or spray applied.
Not for use on tanking, fishponds, new lead or internal use.
Cannot be used as a topcoat.
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Features & Benefits
- Solvent-based
- Fast Drying
- Vital stabilisation of highly friable/porous surfaces prior to application of Durashield topcoat
- Ready To Use
- Ensures Durashield topcoat delivers optimum waterproofing performance
- Rainfall immediately after application has no adverse effect
- Can be brush, roller or spray applied
- For use on highly friable/porous surfaces e.g. concrete, asbestos cladding, sheeting and guttering, OSB/plywood, wooden substrates and EPDM
- Works instantly
Spreading Rate
These will vary depending on substrate, the site conditions and longevity required.
Typically spreading rates will vary depending on the end use.
Porous/Friable Substrates:
e.g. Felted surfaces, Fibrous, Cement, Concrete, Weathered Asphalt and Bituminous Surfaces, Fibreglass and GRP:
- Minimum primer 0.2 - 0.33 lt (equivalent to 3-5 m2 /lt)
OSB/Plywood and 0.2 - 0.33 lt wooden substrates (must be taped and fully scrimmed):
- Minimum primer 0.2 - 0.33 lt (equivalent to 3-5 m2 /lt)
After priming a check must be made for the presence of pinholes and missed areas which can be rectified by applying additional coating as necessary to produce a sound substrate prior to overcoating.
Spreading rates may vary depending on type and condition of substrate, environment and so on. These examples are intended only as a guide.
Drying Times
- Britannia Durashield FD Primer will be dry under normal conditions in 2-4 hrs depending on humidity and temperature and can be overcoated when dry.
Preparation
- Ensure the substrate is free from old plant and debris.
- Cut all brick chases if required.
- The outlets and gutters must be free from obstruction.
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
Note: Please see the Technical Data Sheet for the full priming guide for all applicable substrates.
Application
- Do not thin.
- Stir well before use as separation could occur.
- Please follow the coverage rates shown in Spreading Rate Section.
- To the dry and cleaned surface, apply a generous coat of Britannia Durashield FD Primer by brush or roller at the specified spreading rate as stated under the heading.
- 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.
Cleaning
- For cleaning equipment use White Spirit.
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.
- Over occupied premises during insulation of coatings we would advise keeping windows closed.
- 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.
