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How to paint a Hume Duracoat entry door?

Hello,

I have just applied 2 coats of dulux weathershield paint (monument colour) to a new Hume timber entry door. I allowed around 4 to 5 hours between coats.

I accidentally scratched a section of the door with my fingernail and the paint came right off. I tested a couple of other areas and the paint just scrapes right off. What seems to be the issue here?

Should I have lightly sanded prior to painting? I was under the impression I can paint right over the bluey/green duracoat door.

Someone mentioned it may be the fact the paint hasn't Cured as its quite cold here in Melbourne and I am painting the door in my garage.

Am now considering sanding the door back to roughen the blue/green and starting again.

Thanks in advance

Theo

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tgeorgopoulos90

MitchellMc

https://www.workshop.bunnings.com.au/discussion/comment/38374#Comment_38374

Welcome to the Bunnings Workshop community @tgeorgopoulos90. It's fantastic to have you join us, and many thanks for your question about painting a Duracote door.

I'm sorry to hear you've experienced issues painting your Duracoat door.

Duracote doors must be primed before applying your topcoat. Although Dulux Weathershield is a self-priming exterior paint, due to the slick surface of the Duracote, it must be primed separately first. I suggest using a primer such as Zinsser 1L Bulls Eye 1-2-3 Undercoat Primer Sealer Stain Blocker. It's a water-based primer which makes it easy to work with and you only need to use water to clean up the brushes.

The delaminating of the paint is due to having no primer, but you might also like to reconsider using a soft paint such as Weathershield which is typically designed for walls and surfaces that don't readily receive impacts. I recommend using a much harder water-based enamel paint similar to Dulux Aquanamel.

Please let me know if you have any questions.

Mitchell

ncork

https://www.workshop.bunnings.com.au/discussion/comment/81373#Comment_81373

Hi MitchellMc,
In Internet searching for an answer to this question, I came across this one of yours here, but also a seemingly contrary answer by one of your colleagues a few years ago ... in this thread: https://www.workshop.bunnings.com.au/t5/Whole-of-House/Do-I-need-to-sand-a-new-door-before-painting/td-p/103870, which is a bit confusing 🙂 . Perhaps either that thread or this thread could be updated with the "correct" information/opinion, to avoid such confusion? |

kind regards, Nick

MitchellMc

https://www.workshop.bunnings.com.au/discussion/comment/112029#Comment_112029

Welcome to the Bunnings Workshop community @ncork. It's fantastic to have you join us and many thanks for your question.

We both recommend preparing the surface; Eric by sanding lightly, and myself, by applying a primer. The topcoat paint needs something to grip onto, and both of those methods provide that. However, I've updated the other thread to recommend priming, as that would be the preferred option to ensure the topcoat binds adequately.

Please let me know if you have any questions.

Mitchell

ncork

https://www.workshop.bunnings.com.au/discussion/comment/123512#Comment_123512

Thanks for clarifying, MitchellMc.
One further question, please.

Is only a single coat of the primer required? The Duracote still shows through that coat (except some areas where my brushing has overlapped), but it all definitely got covered by primer. Or do I need to apply a further coat until the whole area is white and the Duracote no longer shows through?

( yep, I'm certainly at 'Just Starting Out' level 🙂 )

MitchellMc

https://www.workshop.bunnings.com.au/discussion/comment/131063#Comment_131063

I'd recommend another coat @ncork. It's probably fine, but you want a solid coat that you can't see through.

Everyone starts somewhere, and we're here to help.

Mitchell

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