skip to Main Content

Alıphatıc Polyurethane Topcoat


It is a polyurethane resin-based, two component, cured with aliphatic isocyanate, semi-gloss aliphatic polyurethane topcoat

  • As a polyurethane topcoat paint of the protective paint systems on all concrete and steel structures under direct sunlight exposure, when high color and gloss durability is demanding

A 23 -kg set of COSMO TOP COAT 500 ST consists of Component
A in one pail of net 20 kg and Component B in one gallon of net 3 kg

  • Excellent non-yellowing and mechanical durability,
  • UV resistant .
  • Excellent chemical resistance,
  • Does not cause dust and gives a smooth surface,
  • Good elasticity to use as topcoat of the concrete protective systems

Store the product in a cool and dry place. Shelf life of the product is 1 year for Components A and B when stored properly in the original container unopened


Refer to Material Safety Data Sheet (MSDS) prepared as per the related EU directives before use


All surfaces to be painted should be clean, dry and free of any impurities
Primed/Mid coated surfaces: Care should be given to the topcoat application times specified for primer or midcoat. If not, then the surface should be definitely roughened before the topcoat is applied. Make sure the surface is very clean before starting the application.
Before the topcoat paint system is applied, all dirty on the primer arisen from storage and manufacturing should be cleaned off completely. For this purpose, oil, dirt and grease should be cleaned off with a suitable detergent and salt and other impurities should be washed off by high pressure fresh water. Topcoat paint should be applied after the surface gets dry
Strength: Thermally, it resists up to +80°C at humid temperature (also without any chemical and mechanical effect) and up to +120°C at dry temperature

Application Conditions:
– Relative humidity of the air should be 80% maximum and the application (ambient and surface) temperature should be between 5 and 35 °C.
– In case it is applied outdoors, it should not be rainy 24 hours before and after and during the application
Surface temperature should be 3°C above the then dew point. (Please call our firm for the Ambient temperature-Ambient Moisture-Dew Point table

Mixing Procedure:
It is a two-component product and it should, therefore, be prepared at the mix ratio specified for the quantity to be used, taking into consideration the pot life. For a homogenous mixture, make sure that the product temperature should not be less than 15°C. Component A should be stirred by itself by use of a mechanical mixer quickly and then the hardener (Component B) should be added, taking care of the mix ratio. Components A and B should be stirred by using a mechanical mixer for minimum 3 minutes until you have a homogenous mixture. It should be allowed to rest for 10-15 minutes and should be given to consume it within the pot life

Surface Application:
Prior to the application with ready-to-apply mix all weld seams and sharp angels shall be striped. Applied based on the consumption values that are stated in the actual point system; or by checking with the wet film thickness gauge until the desired dry film thickness is acquired. Avoid of spray dust and excessive film thickness in the application

Clean Up: Cellulosic or Epoxy Thinner

Back To Top