Solar Heat Resistant Topcoat - Iriostar

Solar Heat Resistant Topcoat - Iriostar

Topcoat specifications

Sunlight is essential for human beings, it brings vitality, motivation, health and well-being.

STARDUSTCOLORS has developed the IRIOSTAR Topcoat which allows the light to pass through and blocks the heat.

The IRIOSTAR Topcoat heat-reflective translucent pigments provide effective and transparent protection for all surfaces on which they are applied, by reflecting the infrared heat radiation of sunlight and decrease it by up to 75%

The blue transmission colour visually and psychologically increases the feeling of freshness.

On which support can the solar heat resistant clear coat be used?

The support can be transparent (glass, bows, market gardening, plastic bay windows...) or non transparent (metal pipes, facades...)

Direct adherence on non-ferrous metals, including silver, steel, aluminum, brass and alloys, zinc
Direct adhesion on all plastics: (ABS, ABS/PC, PPO/PC, PPO/PS alloy, EPOXY, PA, PBT, PMMA, PUR, PJC, SMC/BMC)


Composition: 2K (two-component) Polyurethane Topcoat


Theoretical coverage (without loss), ready for use (RFU): 11sqm/L under 25microns
Calculated VOC: 62.2%

Effectiveness of IrioStar

In a 100 micron dry film (4 coats) with our standard 4% pigment concentration
Direct solar transmission 62%
Direct light transmission 77%
Selectivity 1.24
Temperature drop of up to 13°

Information on the different kits:

1.4L Kit: 1L IRIOSTAR Topcoat + 150ml Hardener H410 + 250ml Thinner
7L Kit: 5L IRIOSTAR Topcoat + 750ml Hardener H410 + 1250ml Thinner

How to prepare the substrate and the mixture?

The substrate to be topcoated must be sound and prepared according to the rules of art.

Mixture preparation (in weight):

100 parts IRIOSTAR TOPCOAT
15 parts HARDENER H410 
30-40 parts THINNER


Application method and drying time for the IRIOSTAR Topcoat:
Air gun, 2 to 3 passes leaving 5-10 minutes between each coat

Ambient air drying at 200C: Touch-dry: 30 min

STORAGE: 12 months in its original packaging.