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TG 80 Start 

Isonit - Iso Paint Nordic 

Product description:
TG 80 Start is a water-based primer.

Product properties and use:
TG 80 Start is a primer to be used before applying HB 80 Finish.
The primer is used on fibre cement and concrete tiles to ensure good adhesion.

Technical data

Acrylic dispersions

Standard colours: Black, anthracite grey dark, slate grey, anthracite grey, light grey, black blue, royal blue, forest green, bordeaux, dark brown, mocca, red brown, oxide red, tile red R-728, tile red and Swedish red.
Other colours are available on demand.
Black and anthracite grey are stock items.

Packaging sizes:
20 l

1,1 kg/l depending on colour

Dry content:
Approx. 44 weight %, approx. 33 vol. %

10 at 60°

Spreading rate:
6 - 7 m2/l


  Theoretical spreading rate 

 Recommended layer thickness, each layer 



6,5 m2/l

150 µm

60 µm

The practical spreading rate depends on application method, form and surface of the material.

Clean the roof thoroughly using high-pressure and Iso A-Clean before applying TG 80 Start. The surface must be clean, dry, and sustainable.

The primer must be stirred before use.

To be diluted with max. 10 % water

Application temperature:
The temperature must be between 8° C and 30° C and 85 % RH.

Application method:
Brush, roller or airless, nozzle sizes 19-21, 180-220 bar

The primer is applied in one procedure.

Always make a test coat to ensure the compatibility of product and surface.

Drying time:
Laboratory tests

 Wet layer thickness 200 µm 

 20 °C / 65 % RH 

Touch dry

1 hour


2 hours

Fully cured

24 hours

The drying and times for recoating depend on layer thickness, temperature, relative air humidity, and air circulation.

Cleaning of equipment:
Water and soap

Cool, protected from frost, in tightly closed packaging, and out of reach of children

No spillage into drains, to be disposed of at the local recycling centre

VOC: Max. 40 g/l (Kat. A/c)


TG 80 Start Primer

TG 80 Start




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