On Wednesday, 20 May 2020 15:55:22 UTC+1, alan_m wrote:
On 20/05/2020 15:49, tabbypurr wrote:

Some south facing exterior timber window frames were painted with Leyland undercoat & gloss topcoat, both oil based. The wood was in sound condition, and the old paint was all stripped off due to its poor condition. Now the paint is flaking badly a year later! How can a repeat of this failure be avoided?


Chemicals from previously stripped paint leaching from the wood and
attacking the undercoat???? Perhaps a paint formulated as a sealer
applied first?

The only chemicals on/in the wood are any traces from the previous paint, which was also alkyd and didn't fail prematurely. So I don't think the issue is chemical residue this time.


NT