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How to paint a metal garage door?

Gunna
Growing in Experience

How to paint a metal garage door?

I would like to repaint my garage doors. They are a "metal segmented roller" style of door. 

Should I use a brush, roller or spray?

There is an article on the Bunnings website, but that approach doesn't seem appropriate for my doors:

https://www.bunnings.com.au/diy-advice/diy-skills/painting/how-to-prep-and-paint-a-garage-door 

 

Any suggestions about the painting please? I assume that the preparation would be the same as recommended in the above article.

 

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MitchellMc
Bunnings Team Member
Bunnings Team Member

Re: How to Paint a Metal Garage Door

Hi @Gunna,

 

For a segmented metal roller door like yours, a paint sprayer can give the smoothest and most even finish, particularly on the flat panels. The preparation outlined in the Bunnings article is still very relevant. You’ll want to remove any loose or flaking paint, clean off dirt and dust, and lightly sand any rough spots so the new paint adheres properly.

 

If you don’t have a sprayer, you can still get a good result with a combination of tools: use a brush for the recessed areas between panels and any tight corners, then a roller for the larger flat surfaces. Just be aware that using a brush and roller will take more time and may leave some subtle texture differences compared with spraying.

 

If you choose to spray, make sure to tape and cover the surrounding areas carefully, because overspray can travel quite far. Overall, your prep steps stay the same regardless of the application method: clean, sand, and prime if needed, then choose the method that best balances finish and convenience for you.

 

The biggest issue you'll need to overcome is having to do the painting in sections. I would paint while the door is closed, then once that is dry and cured, incrementally open the door to paint within the joints. Remember to let them fully cure before moving the door or the paint will stick together.

 

Please let me know if you have any questions.

 

Mitchell

 

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