What primer to use on skim coating


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Old 03-09-14, 01:40 PM
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What primer to use on skim coating

I have scrapped of about 50% of paint that was cracking from walls (previous post). I have put a skim coat (very thin joint compound) and will be sanding.Will wipe and vacuum walls.What would be a good primer.I had used one or two oil base primers before (this cracking has been happening for about 15 years,reason I do not like to paint) but that still did not stop the cracking and peeling from all walls. I was wonder about an acyclic latex primer. Have read that oil based primers might dry out and cause the cracking,really not sure.
 
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Old 03-10-14, 03:59 AM
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Most any latex primer will adhere fine to j/c. Generally the primer is chosen to compliment the top coat except where adhesion or stains are involved. I doubt the cracking/peeling is a primer issue.

What room is this? how old is the house? drywall or plaster?
 
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Old 03-10-14, 01:28 PM
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House about 35 years old. It is happening in living,dinning,kitchen rm,hall way,up and down stairs.Inside and out side walls.No water or moisture in walls.Have open a few of them in the last few years to run wires. House is all dry wall.
 
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Old 03-10-14, 01:51 PM
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It's always best to remove whatever you can of the peeling paint. Zinnser's has a PeelStop primer that might help. It would really be nice to know what is causing the peeling. It's possible the kitchen, bath rm and maybe hallway were originally painted with an oil base enamel but it would be odd for the other rooms to have been painted that way.
 
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Old 03-12-14, 04:29 AM
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I have never use any enamel in the house.I probably used oil base paint (35yr ago). Then I probably switched to latex. Had used B More paint at one time.That is when the peeling started to happen about 15 years ago.They came and took samples and gave me more paint .They never knew what cause it.
Was wondering if any one could tell me the difference between --zinsser/ Primer-Sealers/ Peel Stop® Clear Binding Primer. Or some one suggested---Zinsser® BONDZ® Maximum Adhesion Primer.
What has caused the problem ,I will never really know,now I just have to live with it.
 
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Old 03-12-14, 04:46 AM
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I have never use any enamel in the house
Are you sure? Bath rms should always be painted with an enamel! 35 yrs ago there were still a lot of homes using oil enamel on bath rm and kitchen walls. Almost all professionally painted woodwork from that era had oil base enamel. While flat oil usually doesn't pose a problem when switching to latex, you need to apply a solvent base primer over oil base enamel before repainting with latex. Latex will bond to the primer but won't bond well to oil enamel! Sometimes the peeling starts shortly but sometimes it's years down the road.

The Bondz is a latex primer that is supposed to adhere well to glossy substrates, I've never used it, I use solvent based primers instead. PeelStop is a penetrating primer that is supposed to soak thru and lock down problematic coatings, while I don't believe everything they say - it's probably the best primer for your application.
 
 

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