Which mastic for repair?

[Kai1977]

Hi

We have some damaged window frames which a surveyor said we could repair with mastic, but didn't give more info.

The damage is mainly where the paint on the frames (wood, possibly original Victorian) has peeled away. The windows are UPVC.

Any suggestions as to the type of mastic to use and which brand?

Thanks

 

[big-all]

pictures would help

 

[Kai1977]

View media item 94061
Hope you can see this. Do you need more wide images to show the whole window? I also realise that the cracks are actually between the masonry and the timber frames, not the frames and the UPV windows. Sorry, can you tell I'm a novice?!

Once we fill in the gap between the two we will repaint it (the peeling stuff you see is mainly old paint I think).

 

[big-all]

yes back a bit further cant get a sense off scale from that
if the "hole " is greater than 2-4mm you need to fill it repaint or cover the wood then after that apply the silicone

 

[Kai1977]

Thanks will take more pictures tomorrow. As I said though, the building surveyor just recommended filling with mastic and then repainting (the gaps are closer to 1cm in some places) so the main thing I need to find out is what type of mastic. Oil based? Which brand etc?

 

[Kai1977]

Thanks will take more pictures tomorrow. As I said though, the building surveyor just recommended filling with mastic and then repainting (the gaps are closer to 1cm in some places) so the main thing I need to find out is what type of mastic. Oil based? Which brand etc?

 

[^woody^]

It looks like that split wood needs more than a lick of paint.

As for mastic, if you want to paint over it, then avoid silicone or polysulphide.
.

 

[Gazman16]

Thats starting to look a bit beyond patching up.

As stated some pics further out to see the scale of the damage would be good.

How long do you want the repair to last?
If there is rot in there it should be treated first possibly with new bits of timber spliced in.