UV stable flexible polyurethane car park coating system
Polydeck 3000 is a multi component, polyurethane resin based, flexible protection system for car park decks with excellent abrasion resistance, waterproofing and crack bridging capabilities.
Fields of Application
- car park decks, ramps & turning areas
- trafficable flat roofs
- entrance and exit Areas
- plant rooms
- stadiums, industrial floors
- helipads & airport hangers
Polydeck 3000 system consists of a primer, flexible wear coat, anti-slip aggregate and a U.V stable polyurethane based topcoat.
Two component solvent free Epoxy Primer of low viscosity.
Polypur WC 40*
Three component specially formulated Polyurethane system with special fibrated fillers to provide additional reinforcement, crack bridging capability and flexibility.
Aggregate no. 3
Anti-slip graded quartz aggregate of particle size between 0.3-0.7mm. Used to provide a skid and abrasion resistant floor finish to heavily trafficked areas.
Polypur TC 20*
Two component solvent based polyurethane coating having high abrasion resistance and UV stable properties. Polypur TC 20 has excellent resistance to chemicals, solvents, oils and provides an easily cleanable, as well as UV resistant surface.
The surface should be dry, free of any cement laitance, oil and grease, curing compound and any other contaminants, which may affect the bonding. Light mechanical scabbling, grit/captive blasting or grinding is recommended for cleaning the surface of such contaminants. New concrete surfaces should be 28 days old and the moisture content on the surface must be less than 5%. Refurbishment of existing or old floors must be done with a suitable repair mortar, in order to ensure that the bond between the old substrate and the new flooring system is very good. Surface irregularities and blow holes shall be repaired with Polypoxy BF* (Epoxy resin based blow hole filler and skimming mortar) or Ceresit RS 88* (cementitious repair mortar). Alternatively an epoxy resin based scratch coat can be used when repairing larger areas (> 0.5m2). The surface after carrying out the necessary cleaning shall be vacuumed for removing the dust debris left over after the cleaning process.
Prime the prepared surface with Polyprime PU @ 4-5m2/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. Broadcast Aggregate No. 3 on the primer whilst it is still wet @0.3 kg/m2. This will act as an additional key to the bonding of the wear coat to substrate.
Intermediate Wear Coat
Polypur WC 40 shall be applied as the intermediate wear coat. This coating is supplied in three pre-weighed packs (resin, hardener and filler). Take a suitable container and pour the resin (A) into it. Add the hardener (B) into the resin and mix thoroughly with a proprietary paddle mixer fitted to a slow speed drill for 2 -3 minutes, until a homogenous consistency is obtained. Slowly pour the part C (filler) into the mixing vessel and further mix for 2-3 minutes. Work the mixer round the mixing vessel to ensure it scrapes the side and bottom of the pail. Once the material is mixed properly, pour the material onto the primed surface and spread it evenly with a notched trowel. Once the material is evenly spread, use a spike roller to take out the entrapped air. Spiking shall stop as soon as the coating starts to gel. Whilst the wear coat is still wet, broadcast Aggregate No.3 @approx 2-4kg/m2 (depending on the wear coat thickness). Aggregate broad cast is not required for smooth finish. Allow to cure for 24 hours after which excess aggregate shall be brushed away.
Polypur TC 20 shall be applied as the abrasion resistant, hard wearing top coat. The coating is supplied in two pre-weighed packs (resin & hardener) which has to be mixed at site and used. Part mixing is strictly prohibited. Take a suitable container and pour the resin (A) into it. Add the hardener (B) into the resin and mix thoroughly with a slow speed drill with a proprietary paddle mixer for 2-3 minutes, until a homogenous consistency is obtained. Work the mixer round the mixing pan to ensure it scrapes the side and bottom of the pail to ensure all unmixed material is mixed properly. Apply the coating immediately after mixing. For smooth surface finish apply the coating 5 m2/L/coat to achieve a 125 micron DFT.