Interior paint and putty follow the maker's system, on a dry wall
Why — act while you have leverage
Inside a finished house, a blistering wall means moving furniture, masking floors and living with the smell again. Getting it right the first time is entirely about surface condition and sequence.
What to look at
- Age of the plaster underneath, not just how it feels
- The product data sheet on site
- Drying time between coats actually waited out
How to check it yourself
The same rule as outside, and it matters more because the repair is more disruptive: the wall must be dry and the coats must follow the manufacturer's own order and drying times. Where interior work follows civil work closely, the plaster underneath may be much younger than it looks.
Where this comes from: IS 2395 (Part 1) — Painting of concrete, masonry and plaster surfaces; manufacturer system data sheet (indian standard or building code)
More putty, primer and painting checks
- Photograph before this is covered