blistering Farrow and ball exterior eggshell

[opps]

At the start of summer I was asked to paint a front door.

The door had been previously oiled, or some such.

The grain on the oak door was quite pronounced so i sanded it flat. The recessed panels were still grainy and had minor movement cracks so I back filled all four panels with epoxy resin, sanding it back but leaving a paper's thickness of filler.

At this point I was presented with the paint- Farrow and Ball exterior eggshell. I voiced my concerns about using a water based paint but the client insisted.

Two coats of waterbased primer/uc were applied followed by 4 coats of eggshell, with sanding between coats.

The clients were happy so i was happy.

3 months later and there is a paint blister the size of a two pence piece
on one of the panels.

This is the first time that I have ever had a this happen.

The filler is sound as is the uc, the four layers of eggshell have just peeled away in one layer???

Whilst this was the first time that i had worked for these customers I have since done other work so they know that i am not a donkey- never-the-less it is very embarrassing.

I will phone farrow and ball but i know that they will buck pass. I guess that they will put it down to surface contaminates but i know that the door was clean.

I guess that I am going to need to resand the door and go with oil based. Does any one have any decent exterior oil based eggshells that they can recommend?

Thanks

 

[Nige F]

Holkham Paints - might be worth a try thought that oak shouldn`t be painted , only oiled

 

[Robbie uk]

Oak is one of the worst woods for movement, however old it is. If stained or varnished you dont tend to see it. However could it be the remanants of the oil that was in the door ?

 

[opps]

Hi NigeF

They don't seem to do an eggshell, gloss only

 

[opps]

Hi RobbieUk

It seems unlikely, but who can say. I spent a day and a half sanding, filling and resanding.

Where the paint has blistered the 0.25mm-0.5mm of resin filler and u/c is sound. If it had been oil I wouldn't expect the filler to still be fingernail proof.

Incidentally the door is in a perpetual state of movement. The mastic joins (everbuild 125) around the panel mouldings have cracked, I guess I need to use a high modulus mastic or sikaflex. Also the resin filler joins where the styles and rails meet have developed hairline cracks. I had warned the client that it was a probability. The door slamming doesn't help though. I might sikaflex them as well but I have never tried to sand that stuff flat before, i guess a sharp chisel and 180g-400g paper.

 

[opps]

I see that the Little Greene people do exterior eggshell- who makes their paint- is it sanderson? Any good?