Solvent free epoxy resin primer and sealer


Polyprime PU is a two component solvent free epoxy resin based primer and sealer coat for polyurethane based coatings and toppings. Polyprime PU can also be applied as a scratch coat with the addition of graded quartz sand.


  • Solvent free
  • Low viscosity
  • Easy to apply by brush, roller, squeegee, airless spray
  • Colorless

This TDS is applicable for the United Arab Emirates only. Please contact your local Polybit sales office for the available TDS in your region

Step by Step

Surface preparation

The concrete should be minimum 28 days old and the surface moisture content less than 5% prior to the application of the primer. Clean the surface of all dust, dirt, degradable type of curing compound, oil and grease, cement laitance and other contaminants which will affect the bonding. Captive/shot blasting and grinding of the concrete surface is recommended for cleaning the surface. Cracks, blow holes and surface imperfections should be repaired with Polypoxy BF* or Ceresit RS 88* repair mortar. For larger areas, a scratch coat can be applied. The scratch coat can be prepared by mixing the Polyprime PU with Aggregate No. 8. The scratch coat can be applied by a notched trowel.


Pour Part B into the Part A pail and mix thoroughly with a mixing paddle for 1-2 minutes till a homogenous and uniform consistency is achieved. It is always recommended to mix a complete kit at a time. However, for small areas, part mixing may be carried out by employing proper weight measures.


The mixed primer shall be applied within the working time of the product. Pour the mixed primer on the floor and spread it uniformly with a squeegee. Depending on the type of surface finish required, Polyprime PU shall be applied at a coverage rate of 4-5 m2/L. The coating is applied when the primer is dry. However, in all circumstances, the coating shall be applied within 24 hours of application of the primer. If the primer surface is left open for more than 24 hours, then a fresh coat of primer has to be re-applied.