High Performance Primer/Sealer
Coo-Var High Performance Primer/Sealer is a two pack water thinned epoxy primer used for sealing substrates prior to painting or applying seal coats to a variety of surfaces. It can also be used to provide an adhesive barrier coat between non-compatible products or on its own as a sealer. Coo-Var High Performance Primer/Sealer may be used on concrete, plaster, masonry, wood, ceramic and quarry tiles. It may also be used to seal asphalt prior to coating with non compatible products.
It is essential that all surfaces are clean, dry and free from particulate contamination, laitance, oils, grease, fats and water. Power floated surfaces should be etched first. This can be done chemically using Coo-Var Acid Etch, or mechanically using abrading equipment or shotblasting. This process should also remove any residual laitence produced when the concrete dries. New concrete should be left to dry for about 3 months before coating (or 1 month per inch of screed - whichever is the lesser).
Apply between 10-30°C and less than 90% relative humidity by brush or roller from a paint tray, massaging well into the substrate. Do not allow to 'pond' in profiled areas as drying will be retarded.
Touch Dry: 2-3 hours.
Hard Dry: 16 hours @ 20°C. Full hardness reached over 5-7 days.
Pot life of mixed unit is 1.5-2 hours.
Overcoat Time: 16 hours or overnight. A maximum overcoat interval of seven days is recommended.
Coo-Var High Performance Primer/Sealer is packed in pre-measured units and must not be split down further. The contents of the two containers (base and hardener) should be mixed thoroughly using a slow speed drill and jiffy-type paddle for a minimum of 2 mins. Add approximately 10% by volume of clean water to the blend and mix for a further 2 mins.
7-10 square metres per kilo is recommended. Please note that on profiled or porous surfaces, a lower than expected coverage may be achieved. On rough or profiled substrate, the use of a long pile mohair roller is strongly recommended.
Clean water. Do not use solvents as this will cause the residual mixed product to congeal.
Protect from frost and abnormal heat.