there is some peeling paint on the outside of two of my windows it appears to be structurally ok and would like to fix it before it gets worse
Do I just sand and paint or are there additional steps needed ?
Hello @PennyH
Thank you for sharing your question about your peeling window. The product on the edge of your window is called https://www.bunnings.com.au/selleys-450g-linseed-oil-special-putty_p1210140? . It's used to seal the edge where your glass panel meets the timber frame. It appears that it might be just surface wear, and mould has settled on its surface. If while sanding it, it turns back to a light colour and the dark stains go away, then it's safe to say that it was only surface mould. But if while sanding it breaks apart or turns into fine dust and crumbles away then it's time to remove it and replace it with new putty.
In regards to your first query, yes, sanding, cleaning then priming and painting are the steps to revamp the window frame. I propose sanding the surface and see if the mould stains travel all the way down inside the old putty. If they do, I will vote to remove the old putty and replace it with the new. You'll need to use a steel scraper to remove the old putty from the surface.
I also suggest having a look at these discussions - How to replace putty around timber windows? by @lisajk and How to replace window putty for outdoor window frame? by @Jessie1. My best advice is to use a https://www.bunnings.com.au/uni-pro-38mm-real-good-putty-knife_p1670222 to make it easier to apply the putty.
I propose using https://www.bunnings.com.au/dulux-1l-1step-prep-primer-sealer-undercoat_p1370232 to prime the surface and https://www.bunnings.com.au/dulux-1l-vivid-white-low-sheen-weathershield-exterior-paint_p0144759 for the topcoat tinted to your preferred colour.
Let me call on our experienced members @Dave-1, @Nailbag and @Noyade for their recommendation and vote.
Please remember to wear personal protection such as gloves, goggles, mask, long-sleeved shirt, pants and enclosed when working on your project. Glass can shatter easily if knocked and look for professional assistance if you are not confident.
If you need further assistance, please let us know.
Eric
Here is a handy guide:
Good Evening @PennyH
I really cant add more to what @EricL has suggested. Its pretty much the route I would go as well. A note of caution if you need to remove the old putty. A paint scraper plus glass = ouch if you hand slips. I would suggest to wear gloves and take it slow and easy.
Dave
Hi @PennyH
I also would agree with @Eric suggestion to remove the old putty first, then replace it with timber quad as well as new safety glass. However, from experience this is a task you need to take slowly as it won't take much to crack the glass in the process. Then you will need a mitre box and tenant saw to cut the timber quad to length at 45deg at the ends. Then pilot hole the quad and inset fine gauge 20mm bullet head brads driven in with tack hammer, being careful not to hit the new glass. And then finish it off using a nail punch and putty. It all sounds easy enough which, it is if you take your time. If in doubt a decent handyman can perform this task for you.
Nailbag