TOPCOAT-PAS 780

TOPCOAT-PAS 780 is a two-component, transparent, fast-curing, aliphatic polyaspartic topcoat (cold polyurea). It is solvent-free and low-VOC. It offers the following advantages:

  • superior mechanical resistance
  • excellent UV stability
  • high abrasion resistance
  • excellent resistance to a wide range of chemicals
  • high resistance to pedestrian and vehicle traffic

Certified according to EN 1504-02 and classified as a coating for surface protection of concrete. TOPCOAT-PAS 780 is intended for use as a topcoat in interior or exterior flooring systems, such as:

  • decorative microcement coatings
  • decorative quartz broadcast systems
  • decorative flake broadcast systems

Suitable also for use as  a protective floor coating in industries, warehouses, laboratories, showrooms, garages, etc. It can also be used as a binder on decorative quartz broadcast systems or flake broadcast systems.

Substrate preparation

The substrate must be dry, clean, free of grease, loose particles, dust, etc.

Mixing 

Components A (resin) and B (hardener) are packaged in two separate containers, at the correct predetermined mixing ratio by weight. The whole quantity of component B is added to component A. The two components should be mixed for about 2-3 minutes using a low-speed mixer (300 rpm) It is important to thoroughly stir the mixture near the sides and bottom of the container, to achieve uniform dispersion of the hardener. It is advised to let it rest for a few minutes after mixing to help entrapped air escape.

  • The workability of polyaspartic materials is affected by temperature. The ideal temperature of application is between +15°C and +25°C, for which the product obtains optimal workability and curing time. Room temperature below +15°C will extend the curing time, while temperatures above +30°C will reduce it. It is recommended to mildly preheat the product in the winter, and store the product in a cool room before application in the summer.
  • Bonding between successive layers my be severely affected by moisture or dirt present between them.
  • Polyaspartic layers should be protected from moisture for 4-6 hours after application. Moisture may whiten the surface or/and make it sticky. It may also disturb hardening. Faded or sticky layers in parts of the surface should be removed by grinding or milling and laid again.
  • In case recoat time is longer than expected or old floors are to be overlaid again, the surface should be thoroughly cleaned and ground before applying the new layer.
  • The maximum recoat window to apply an additional coat is 48 hours.
  • Temperature during application and hardening of the product should be between +8°C and +35°C.
  • The substrate moisture content must be below 4% and the ambient moisture below 65%.
  • TOPCOAT-PAS 780 is intended for professional use only.
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Surface: Concrete, cement

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Application: Roller