Growler said:
confidintcompetent: How do you know that the paint you're painting over was One Coat Gloss? unless you applied it yourself. It does not come off in sheets, this is a myth. As for thinning ordinary gloss to paint rads/ gutters etc....never would I thin gloss.
Of corse I dont know but guess by the gobby brushmarks and thickness of the peeling paint film that one coats been used. Anyhow if the surface is sound and no filling etc needed I can see the point of one coat and have always used normal gloss after prep, this does'nt peel either. however Most jobs where filling, bare spots and just plain crappy surfaces exist then undercoat and gloss is my way. my point is that I would'nt go out and buy a tin of 'one coat' where I know I can use normal gloss and achieve the same result as your 1coat.
Regarding not thining gloss!well I can show you many jobs where brown gutters had faded and I put one coat of thinned gloss (dulux conker) and they still look glossy several yrs on. How do you get the paint to flow out without thinning? Garage doors **** how many? lost count