Senior moment paint problem

[bigwow]

Last year I repainted BigWow with 2 pack paint, 8 coats, If I say so myself it looked great! I then decided to paint the sides of the coach roof a contrasting dark blue. I mixed the paint and rollered it on, the rollers seemed to come apart a little quicker than normal, which I put down to the warmer day. After 6 hours the paint hadn’t gone off, just skinned over, in fact it had not gone off by the next day. I then discovered that instead of mixing in the activator I’d mixed in acetone which I had in a similar tin, the lesson has been learned. General opinion was it would go off eventually, it has not gone hard. Do I put an activated coat over the top, or try and sand it off; I think a non starter as it will instantly clog the paper, or what do you paint experts suggest.
John

 

[oldsaltoz]

You could try a small area in an inconspicuos spot and cover about a square foot, I would add extra part be though to ensure the undercoat at least a good dose in it's surface, nothing to loose by doing this.

Avagoodchrissie......

 

[gavin_lacey]

I would not try overcoating. I would be surprised if your first coat would cure properly and any paint on top of it would be compromised by the iffy base coat. Have you tried removing it with a solvent? Since it has not been cured it will probably not be resistant to solvents.

 

[oldharry]

I agree, overcoating will just make things worse, as the new paint will only adhere to the weak coat which would allow it to kove, or to be very easily chipped off. I would contact the makers and explain whats happened and see if they have a solution.

Sanding part cured paint will just clog up acres of sandpaper, I would guess you will need some sort of solvent or stripper to remove it.

 

[milfordman]

My condolences it is the sort of mistake that is so easy to make.

I must be honest that I have not done that particular one but I have had my screw ups.

My favourite saying on such occasions is:

The man who never made a mistake never made anything.

I agree that you should not over coat it with another coat of paint. You must either remove it or persuade it to fully cure.

If it is 2 pack I do not think it will ever cure left alone. You could try coating a small area with neat activator brushed on.

When ever you are working with 2 pack I would recommend protective gear at all times goggles mask and gloves.

If you need to remove the paint, I would suggest using a hot air gun and a scraper, and or caustic soda mixed with wall paper paste, then scraper. once you have used the soda it will probably be possible to use abrasive paper

 

[Pasarell]

Agree with Milfordsam. It's never going to cure now so has to come off. It will possibly harden a little with time but will always have a weak bond to the substrate and be very easily damaged. Better to bite the bullet now and do the hard bit. I think I would try wiping with solvent before stripper. Make sure you use the correct solvent for the paint type, not just anything to hand, and wear rubber gloves