Caulk shining through paint block & paint

davindub

Bit of a nightmare here.

I have used acrylic caulk to fill holes in an plaster wall. Sanded down. Painted it.

The caulk is appearing as a dark area through Matt paint.

Then tried a oil based primed, so now the primer is showing through the paint and further more the caulk is shining though both..

Anyone any ideas?

colm_c

Any photos?

What brand of paint and how many coats?

Caulk should really only be for small gaps where two surfaces meet, e.g skirting and wall.

mad m

Did you originally finish wall using a roller?

The touch ups did you use a brush? Try touching up holes or patches with the roller.

davindub

Thanks Colm,

This shows the caulk shining through the paint
https://imageshack.com/i/poSDFIXqj
https://imageshack.com/i/pmgilRnjj

This is the stain block
https://imageshack.com/i/po2dO9sBj

The caulk has 2 coats in the image, but there are areas with 4 coats, it still shines through in strong sunlight.

The brand is dulux moda matt, stain block is dulux professional (oil based stain block) and the caulk was a cheap brand from Homebase

davindub

mad m wrote: »

Did you originally finish wall using a roller?

The touch ups did you use a brush? Try touching up holes or patches with the roller.

I tried both, I also tried bonding the wall again. I uploaded the pictures there, very persistant!

dok_golf

get a shellac based primer ( e.g. Zinsser B.I.N. or Fleetwood Terminator ) and go over the caulk again. You will then probably need two coats on top but that should be your problem solved.

mad m

I’m afraid that’s one of those colours that can be a nightmare especially with lumpy bumpy walls. I remember years ago doing a sitting room on a site with similar Colour, cut in then rolled it. It flashed after rolling it. Had to use a stock brush to paint the whole sitting room. It solved it thank fook.

davindub

dok_golf wrote: »

get a shellac based primer ( e.g. Zinsser B.I.N. or Fleetwood Terminator ) and go over the caulk again. You will then probably need two coats on top but that should be your problem solved.

sound, ill try that!

davindub

mad m wrote: »

I’m afraid that’s one of those colours that can be a nightmare especially with lumpy bumpy walls. I remember years ago doing a sitting room on a site with similar Colour, cut in then rolled it. It flashed after rolling it. Had to use a stock brush to paint the whole sitting room. It solved it thank fook.

Hopefully not....

dok_golf

davindub wrote: »

sound, ill try that!

Give it 2 coats of the shellac if you think it needs it. when you paint over, the area with the primer will look patchy as it will stay wet for a lot longer than the surrounding area, but will dry eventually.

Dev84

Cut them out and use dial ready to use filler