Dulux Weathershield undercoat helps to thoroughly set the topcoat for a long-lasting finish, to avoid cracks, staining and other weather-induced damage. Once you’ve picked your colour and ensured there’s no rain forecast, grab a clean paintbrush and start applying the undercoat.
For metal garage doors, our two-in-one Dulux Primer & Undercoat for Multi Surfaces combines priming and your undercoat, so all you need to do is apply two coats of this and allow two hours for the undercoat to dry before moving on to step 7 and painting your Dulux Weathershield topcoat.
For wood surfaces, once the primer is dry, use our Dulux Weathershield Quick Dry Undercoat. One layer might be enough, but apply a second coat if you feel your door needs it. Wait for two to four hours for the undercoat layer(s) to dry before moving on to a topcoat.
Top tip: Begin with the corners and edges by opening the garage door, before moving on to the front of the door once those areas have dried, and coat it thoroughly.