Hire the best Painter

Painting aluminium window frames - 'experts' disagree

Results 1 to 10 of 10
  1. #1
    Member
    Join Date
    Apr 2011
    Location
    Remote outback NSW
    Posts
    81

    Default Painting aluminium window frames - 'experts' disagree

    So I've spent a couple of nights researching how to paint aluminium window frames.

    Anodised frames apparently are dyed aluminium with an aluminium oxide coating. Dulux in Canada say anodised frames can't be painted, which is the opposite of what everyone else has said.

    Recommendations for cleaning frames range from Penetrol, soap and water, metho, turpentine, All-Brite, and soap free boat cleaner.

    Some say to sand every part of the frame first, but majority recommend self-etching primer as the next step. However, quite a few say the anodised frames should be sanded first.

    Some recommend spray painting others say painting with metal paints achieves a great finish and is better for the DIY painter.

    Some say 2 pack with a final coat of sealer.

    Everyone has their 'best' paint to use, with one bloke just using Solagard and says it has lasted for several years on his windows. This is not something to be recommended though, particularly on the tracks.

    Opinions mixed about getting paint on the putty around the window.

  2. #2
    Paint Dealer Blocker's Avatar
    Join Date
    Oct 2008
    Location
    Springwood NSW
    Posts
    466

    Default

    Quote Originally Posted by Sapienreno View Post
    So I've spent a couple of nights researching how to paint aluminium window frames.

    Anodised frames apparently are dyed aluminium with an aluminium oxide coating. Dulux in Canada say anodised frames can't be painted, which is the opposite of what everyone else has said.

    Recommendations for cleaning frames range from Penetrol, soap and water, metho, turpentine, All-Brite, and soap free boat cleaner.

    Some say to sand every part of the frame first, but majority recommend self-etching primer as the next step. However, quite a few say the anodised frames should be sanded first.

    Some recommend spray painting others say painting with metal paints achieves a great finish and is better for the DIY painter.

    Some say 2 pack with a final coat of sealer.

    Everyone has their 'best' paint to use, with one bloke just using Solagard and says it has lasted for several years on his windows. This is not something to be recommended though, particularly on the tracks.

    Opinions mixed about getting paint on the putty around the window.
    Nothing done by hand will be as tough as the original finish,but a good job can be done using the following...
    Wash down with a fine plastic scourer,when dry apply 1 coat Etch Primer then 2 coats Epoxy Enamel in your choice of colour....These products are readily available as Wattyl Killrust,White Knight Rustguard,Galmet and others.
    Regards,
    Blocker.

  3. #3
    Member
    Join Date
    Apr 2011
    Location
    Remote outback NSW
    Posts
    81

    Default

    Thanks Blocker. That sounds great to me. I'll give it a go.

  4. #4
    3K Club Member
    Join Date
    Jun 2010
    Location
    Qld
    Posts
    3,278

    Default

    I love epoxy paints and products, been using them for many years, particularly on boat refurbishes and new fit out's. Sticks to everything provided there is no trace of silicon on the surface or any of the tools used.
    I would, however, avoid a white coating as it can turn a little yellow if exposed to direct sunlight.

    Good luck and fair winds.
    Growing old is compulsory, growing up is not.
    http://www.wet-seal.com.au/waterproofing/locations.html

  5. #5
    Senior Member
    Join Date
    Mar 2018
    Location
    Australia
    Posts
    168

    Default

    Jumping on this older thread instead of creating a new one. Thinking of doing the same as Sapienreno, best to use a spray paint? Something like this?

    https://www.bunnings.com.au/dulux-me...paint_p1400829

    And use an etch primer beforehand? Do i need to do anything to the existing window except for cleaning it? (like sanding etc)

  6. #6
    Golden Member
    Join Date
    May 2016
    Location
    Perth
    Posts
    750

    Default

    with aluminium, ( all knids) the most important aspect is the strength and hardness of the final coats.
    so the best strength, not neccesarily adhesion is what youre after. Aluminium is difficult to prepare, and so is powdercoated aluminium, and so is anodized.
    Personally, I dont recommend etch primers because of the effect the acids have on the top coats, and dulux group protective coatings, dont even endorse it, but they sell it in case someone knows what they're doing and wants to etch it.

    http://www.duluxprotectivecoatings.c...%20Primers.pdf
    quote from document.
    "Etch Primers are not for use over previously painted surfaces, as the phosphoric acid present in the etch primerinterferes with subsequent coatings, causing delamination."

    So effectively, if your frames are powdercoated, your best approach is to manually scour them with scotchbrite pads, then 2 very light guide coats with a light grey primer (is designed to stick and fill), followed by 2 coats of the best epoxy enamel, and for that i would actually recommend wattyl killrust instead of dulux.

  7. #7
    Community Moderator phild01's Avatar
    Join Date
    Aug 2009
    Location
    Sydney, north
    Posts
    16,506

    Default

    Quote Originally Posted by rebuildr86 View Post
    and for that i would actually recommend wattyl killrust instead of dulux.
    Why so? A very long time ago I used Killrust and was very unhappy with it's durability. I more recently used the Dulux the OP linked to and so far happy with the result. However I doubt there is any readily available paint that will last as well as an original powdercoat, and will dull in short time.

  8. #8
    Golden Member
    Join Date
    May 2016
    Location
    Perth
    Posts
    750

    Default

    sorry metalshield, completely forgot about it. haha. brain fart. i was thinking of the silly new retail product, Duramax. Yes the epoxy enamel by dulux is also just as good.
    Interesting that you say better reults were achieved from dulux. Dulux came in with teh spraypacks of epoxy enamel after wattyl had killrust on the market for years and years, but i guess wattyl maybe just didnt continue investing in improving it.

  9. #9
    Community Moderator phild01's Avatar
    Join Date
    Aug 2009
    Location
    Sydney, north
    Posts
    16,506

    Default

    The killrust I used was over 20 years ago and wasn't a spray. I doubt it was epoxy, so take it the more recent stuff is!

  10. #10
    Golden Member
    Join Date
    May 2016
    Location
    Perth
    Posts
    750

    Default

    yeh killrust is a single pack epoxy enamel, which means it requires baking or somethign to realy amke the epoximide to really work itself to set, but wattyls one sems to cure much better than dulux's.

    In fact, the consumer reviews for it (dulux one) are pretty damning haha.

    https://www.productreview.com.au/p/d...eld-epoxy.html

    Because its an epoxy, the cobalt stuff that goes in normally to assist in decreaseing the flash time, cannot be added.

Similar Threads

  1. Repai ting Primrose Aluminium Window Frames
    By Teeps in forum Painting
    Replies: 1
    Last Post: 1st Apr 2017, 11:32 PM
  2. How to paint Aluminium Window Frames
    By DaleBlack in forum Doors, Windows, Architraves & Skirts
    Replies: 6
    Last Post: 19th Jul 2015, 05:33 PM
  3. Replies: 2
    Last Post: 1st Mar 2010, 12:59 PM
  4. Replies: 7
    Last Post: 27th Sep 2008, 06:00 PM
  5. Paint on aluminium window frames
    By cinderella in forum Doors, Windows, Architraves & Skirts
    Replies: 1
    Last Post: 19th Feb 2008, 04:28 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •