[laidman]

Ok, so I've been painting the house that I bought recently. I'm in one of the bedrooms, and have applied wall compound, sanded it down. Applied primer, and now the first coat of colour. within minutes, on one of the walls, I am getting bubbles. One was the sizes of a loonie!!! the rest are miniscule but still. The big bubble ended up popping and pulled off everything back down to the original paint that I started with. What the hell am I dealing with here. I am worried that the original paint could be and oil based paint, am I thinking along the right lines here. The House is approx 75 years old, so oil paint is possible, but why is it only on this one part of the wall, I'm not sure. pls help,