The best way is to scrape it right back to original. If you leave any of the paint on it you wil find that the whole problem may start again. On the other hand you can clean the peeled parts of the job as well as possible then paint the area you treated with masonry glue slightly watered down. Then wipe it down with a wet cloth to remove the excess glue. Allow it to dry and paint over the whole lot with a good quality acrylic paint.
Yea
You can but it wont last, you will have a bigger peeling mess.
Yes, you can.
There are some water based coatings that will adhere to an oil based surface without using a primer; however, an oil or acrylic-based primer, used as a bridge, will allow you to paint latex over an oil-base paint trouble free.
Dip a rag in thinners and with a finger in the rag, rub the painted area,.
They should be lightly sanded, washed to get rid of the dust and then painted first with an 'undercoat'. Paint suppliers will be able to advise you.
Yea
Yes, oil based paint is very versatile and can be painted over many painted surfaces, including those previously coated with latex paint, as long as the surface is dull and clean.
What kind of paint was used? Water or oil based paint?
You can but it wont last, you will have a bigger peeling mess.
Yes, you can. Primer will grip to almost any painted surface.
Yes it can.
Yes, you can.
There are some water based coatings that will adhere to an oil based surface without using a primer; however, an oil or acrylic-based primer, used as a bridge, will allow you to paint latex over an oil-base paint trouble free.
power wash, dry, prime any bare wood and paint
Ammonia absolutely DOES attack paint! Do not use glass cleaner on paint! Use a product meant for painted surfaces.
Dip a rag in thinners and with a finger in the rag, rub the painted area,.