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Stephanie
"chalk based paint"

 

I am getting frustrated trying to find remedies for painting over "chalk based paint" used in the early 1970's. Some called it builders paint. I have only found one response in google which was an old blog here 9 yrs ago referring to someone who had problems in his bathroom with new paint falling off with old paint and then peeling. I have had this problem in the past and is now haunting me again. 20 years ago we bought a home and decided to paint bedroom. Bought great Benjamin Moore Paint, prpped and proceeded to roll on the first wall only to have it literally strip off the old paint to the sheet rock as I got halfway done! I immediately stopped to catch the falling partially scrolled up mess! I couldn't believe my eyes!! I called my Aboff's store rep and told him what was happening. He said I had "chalk base builders paint" on the wall that was never covered for 10+ years. I would have to try and scrape off all of the latex paint off as well as I could. Then, use oil base primer on all walls, let it cure for 3 weeks to ensure it adhered, then proceed with any painting. What a mess! Some of the old & new paint adhered in small spots. Sanding & scraping was difficult and the thought of skim coating the whole wall was undaunting. After priming with oil base primer, I decided to sponge paint to cover the numerous small flaws.

It worked until about 7 years later we had small & large pieces of dried paint cracking, and peeling off the wall down to the sheetrock! We're talking pieces 5-12"s. I guess the oil base only lasts a few years. Consulting with many paint dealers the only fix was to sheet rock over the mess with thin sheets. My other rooms were saved because of wallpaper was used originally.  

Now we want to refresh the whole house with paint to put it on the market. My husband hired a painter. He started with ceilings. I reminded my husband and warned the painter of my experience years ago and they needed to get professional advice regarding " chlak based paint" from the 70's. They ignored me and you know what happened. He painted one bedroom ceiling: looked at it and said its OK!! Whats the problem? He wasn't even 10 minutes into the next ceiling when my son started yelling that the wet paint was falling down in large pieces on his bed, curtains furniture etc. The painter and my husband were frantically covering evrything and trying to catch the falling paint strips. Then another yell from the 2nd. room the painter had started. Yep! All the wet area was beginning to peel in areas and dropping on the rug. Now I have 2 ceilings a mess!! 

I cannot find anything online. It just keeps going to the new fad chalk paint, not "chalk based paint" I have 3 more bedrooms to paint.                                  

Clarence
Re: "chalk based paint"

 You may have what is called Rabbit Paint ( in the south ) it is Lime based with Hide glue as a binder.

This type paint will come off with plain water. Most paint primers will not work over this type paint. I don't think that Hide Glue paint would have been used in 1970 you may have another problem ?

For more answer go to this web site DIY CHATROOM you should get many responses there.

HandyAndyInMtAiry
Re: "chalk based paint"

I have covered this type of paint with a good washing of the walls a few times first using wall paper stripper, clean hot water, and then use a high quality oil based primer.

Of course, it may be easier and less cost to remove and replace all the sheetrock. Most houses cost about 2-3 thousand dollars to do this. You could always use milk paint to paint over what is there, after washing like I described above.

Andrew

Handy Andy In Mt Airy NC

Pyewacket
Re: "chalk based paint"
Clarence wrote:

 You may have what is called Rabbit Paint ( in the south ) it is Lime based with Hide glue as a binder.

This type paint will come off with plain water. Most paint primers will not work over this type paint. I don't think that Hide Glue paint would have been used in 1970 you may have another problem ?

For more answer go to this web site DIY CHATROOM you should get many responses there.

Perhaps they meant the 1870's instead of the 1970s.

I have a house built in 1958 with this sort of paint on the ceiling in the living room.  The wallboard there was installed about 10 years ago in a past reno.  Prior to that it was exposed rafter beams.  They also mixed grit into it. There's a bucket of the stuff out in the garage (grit) labeled something-or-other-electrostatic-something-or-other that I decided must have had something to do with sandblasting.  Putting it in the "paint" - and it was clearly deliberate as it is distributed evenly throughout the paint across the entire 15x35 expanse of the ceiling - just seems crazy.  I have NO idea why they did that or even actually exactly what the stuff is, but it comes off with plain water.

I think you are way underestimating the cost of replacing all the wallboard in a house.  ESPECIALLY if you have to hire it done, and most people would have to do that.  Putting wallboard up is relatively easy but making it look nice is an entirely different matter. And putting it up on the ceiling is an even bigger can of worms, and impossible if you're on your own, LOL!

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