I removed 90 year old wallpaper in my living room to find unprimed (I think) plaster. The plaster walls are very smooth but are covered with a brown film that washes off easily with water. After repairing some cracks, washing, sanding, and priming the walls with a latex primer I am finding that the primer is not adhering to the walls. Once the primer dried I could rub my fingernail over the dried primer and it just peeled off the walls. Is this normal? Did it not dry properly? Should I have used an oil based primer or is there something else I should have done to prepare the old plaster for primer/paint?? Thanks.
Jaclyn
2006-08-16 16:02:06 · 3 answers · asked by Jaclyn G 1 in Home & Garden ➔ Decorating & Remodeling
Just a caution about oil-based primers, you can not paint latex over oil base. The paint will sag and fishmouth. I would suggest latex KILZ or Z PRIME.
2006-08-17 05:01:37 · answer #1 · answered by big_mustache 6 · 0⤊ 0⤋
possible you didn't let dry long enough. you will prolly have to remove the non-adhering primer, put on the a/c for a day or so with some fans to keep air circulating. Get a good sealer like Kilz or Z-prime. Also, after sanding did you wipe down, brush off or vacuum the walls to remove dust?
Oh, just noticed - you said you washed. Did you remove all of the brown film? Is probably wheat paste glue and might be the problem.
2006-08-16 23:12:00 · answer #2 · answered by Skeff 6 · 0⤊ 0⤋
the walls should be washed with tsp, then an oil based primer applied
2006-08-17 01:53:14 · answer #3 · answered by mother of Bridezilla 3 · 0⤊ 0⤋