Help - layers of trouble

[Robinjsmith]

Hi please can anyone help - I'm several layers into a frustrating problem and stuck now - its a long story I'm afraid:

Painting bathroom - over existing silk emulsion on walls.
Mistake 1 I didn't sand down existing paint
Mistake 2 didn't use a bathroom specific silk used ( not waterproof)

2 coats later, Paint discolours when getting wet, leaving permanent marks.
Also chips off too easily

I covered it with 1:1 PVA solution to seal it as recommended by 2 professionals
Then painted with bathroom specific silk with a paint pad

Now When painting new colour, wet paint lifts off previous coats, and/or crackles underneath.

Fed up - should I completely sand down and start again or is there a cheat?

 

[geraldthehamster]

Hi please can anyone help - I'm several layers into a frustrating problem and stuck now - its a long story I'm afraid:

Painting bathroom - over existing silk emulsion on walls.
Mistake 1 I didn't sand down existing paint
Mistake 2 didn't use a bathroom specific silk used ( not waterproof)

2 coats later, Paint discolours when getting wet, leaving permanent marks.
Also chips off too easily

I covered it with 1:1 PVA solution to seal it as recommended by 2 professionals
Then painted with bathroom specific silk with a paint pad

Now When painting new colour, wet paint lifts off previous coats, and/or crackles underneath.

Fed up - should I completely sand down and start again or is there a cheat?

You can't successfully paint over PVA, so I don't know who told you you could. If there is a primer that will seal it, then maybe someone with more experience than I will tell you what it is. I wouldn't relish the thought of sanding it off but you might have to.

If it helps, I have flat matt emulsion on my bathroom walls; I do have to wipe streaks off it periodically but the paint stays on the wall.

Cheers
Richard