Streaky paint

[Craig1]

Thanks for the comments.  I did speak to Craftmaster who said the owatrol should be fine, but I think I'll buy their thinner for the next coat. I like the paint and that Speight feller knows his business.

Thanks for the advice about the polytunnel humidity and heat concerns, you're probably close to the mark there, the heat levels change just like that and I reckon that caused the paint to separate.  I didn't want to go to the effort of another coat without picking your brains, so thanks to all those who read the question, I'll embark on more back breaking work on the cut this time.

 

Cheers all, any more bright ideas let me know.

 

Craig