General Purpose Liquid PU Waterproofing
This is a slower curing PU Liquid Waterproofing, semi-thixotropic and is applied by Brush or Roller. This products has the highest Fire Rating Certificate in Europe ( Broof T4 ) This product does not have a BBA , as it is sold as a more General Purpose PU Liquid Waterproofing..
Life Expectancy - not tested independently - 15 Years Product Warranty
Application Method - the system is a 2 x layer system with a total weight of 2kg per sq.m. with glass fibre embedded in the first layer.
Clean-jet- wash the roof and dry
Primer - apply the correct Primer ( see Table Below ) and allow the Primer to dry.
Base Coat – Apply 1kg per sq.m o Impermax and embed the glass fibre reinforcement into this Base Layer. The cure time will be longer than Impermax -and will be around 4- 5 hours depending on the temperature and humidity. You can walk on this Base Coat when dry and inspect for any small defects such as pin-holes, or glass “wicking “. Any small defects can be repaired easily at this stage in the process. So, like other 2 x layer systems the System is “idiot proof “, because if the Base Layer is correct then the finished 2 x layer system will be Perfect.
Top Coat- apply another 1kg per sq.m of the Impermax on top of the dry Base Layer. This top-coat will be very easy to apply, giving a total weight of 2kg per sq.m ( 1.8mm ) of PU Liquid Waterproofing with the Highest Fire Rating in Europe.
Colours - this Liquid Waterproofing is only supplied in 1 x colour -medium/ light Grey RAL 7040. Because it has more pigments inside the colour change with UV light is not noticeable “