Advice on correct preparation and painting


Galvacoat can be applied by brush, roller or spray equipment. It has very good resistance to UV exposure and can therefore be applied as a one coat system for painting galvanised steel in outside weathering conditions.

Surface Preparation

The galvanizing to be coated must be free of dust, rust, oil, grease and soluble salts (white rust). After welding, any damage to a galvanized film should be cleaned and any rust removed. A cold galvanised material with a minimum zinc content of 92% should be applied to the damaged areas at a minimum thickness of the galvanized film plus 10%. A combination of degreasing and steam cleaning is the optimum way to remove any dirt, grease and zinc salts. Wash down with fresh water.


Add the hardener to the base paint (converter) and mix well.


Airless application: Dilute 0-10% with thinner PU41
Airmix application: Dilute 5-10% with thinner PU41
Air assist application: Dilute 10-20% with thinner PU41
Recommended spray nozzle size for airless spray : 0.015-0.017”; 50-80 degree angle

Application Conditions

Relative air humidity: max 85% (no condensation on the substrate)
Temperature during application and drying: 2C above the dew point. Never apply below 5C.
Max. temperature during application: 40C

Drying Times

Dustfree: 1hr
Tack free: 4hrs
Hard: 20hrs
Recoatable: 12hrs
Recommended thickness: 40 – 120 microns
Potlife: 6 – 8hrs at 20C


For Best Application Conditions Remember:

  1. Always ensure that the galvanizing is clean and dry and that any zinc oxide (white rust) has been removed.
  2. Add all the hardener to the base and stir together well, once. Do not continually stir as agitating the material only serves to generate heat which reduces the pot life.
  3. Do not apply GALVACOAT when it is raining or the temperature is likely to go below 5C within 2-3 hours.
  4. When applying a light colour (white, yellow), it is advisable to stripe coat all edges and vertical surfaces with GALVACOAT before applying a full coat, as it is difficult to get sufficient material on an edge to cover in one coat of a light colour.
  5. Ensure that no more than three days passes between the cleaning down of the galvanizing and the application of GALVACOAT.

Application Download Information

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Fuelling a great new look for Tesco fuel stations.
South East Galvanizing, part of Wedge Group Galvanizing, is the sole distributor in the UK of Galvacoat®, and supplied it to signage manufacturer ASG for use on steel gantries installed at the forecourts of every Tesco fuel station in the country.
When powder coating just won’t work
Wessex Galvanizers, part of Wedge Group Galvanizing Ltd, supplied the Galvacoat® paint system to John Reid & Sons for two commercial warehouses in Jersey, measuring 29m and 38m wide by 45m long.
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Powerscourt Hotel, formerly the Ritz-Carlton, in County Wicklow, opened in October 2007 and is a lavish €200 million development offering an unprecedented level of luxury for guests.
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