New Pine Weatherboards, Dulux 1 Step (Oil or Waterbased)

[BrissyBrew]

Ok I decided go with dulux paint for painting my Queenslander.

My first task is I need to prime some new pine weatherboards. So I popped down to my local dulux paint center (all of 150 meters down the road). I advised then what I am doing and they suggested:

Dulux<SUP>&#174;</SUP> 1 Step™ Acrylic Primer Sealer & Undercoat, then followed by weathershied. Recommended Acrylic because it is more flexible.

When I got back home I thoguht of calling the dulux help because the people down the dulux shop did not fill me with confidence. They recommend:
Dulux<SUP>&#174;</SUP> 1 Step™ Oil Based Primer Sealer & Undercoat
The guy stated if I were to use an Acrylic Primer on the new timber I should let it weather for a few weeks to a few months applying. He said better to use the oil based primer.

Any recommendations. I hate it when you get conflicting advise from the so called experts.

[cyco]

you could use either! my preference it oil based as i believe the timber absorbs it better. i have started using acrylics now for easier, faster application and i haven't had any problems so far.
all the best for what every you decide.

[BrissyBrew]

Evidently due to the resin in the new timber and it is knotty I was advised that I would be better of with an oil based primer, water based primers may bubble if the timber has too much moisture or resin bleed.

[Ekim]

BrissyBrew,

Some years ago, Dulux Techncial people (Dulux Help line) advised me that if you use an oil based sealer/undercoat followed by a water based top coat, allow at least 36 hours for the oil based solvents to evaporate (this time frame assumes a temperature of 25 degrees celsius). Failing to allow an adequate drying time for the oil based sealer/undercoat could cause the water based top coat to bubble. This advice was confirmed by a professional painter.

HTH

Mike

[BrissyBrew]

Ekim

Your are correct. I was advised to leave the oil based primer for at least 48 hours to allow the solvent to evaporate. Then put the water based top coat on ASAP. If you leave it too long the oil based primer becomes too hard and requires sanding before applying additional coats.