Thinning Zinser 1-2-3 primer

Old 09-19-04, 10:31 AM
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Question Thinning Zinser 1-2-3 primer

I have almost a full gallon of Zinser primer that has thickened a bit due to the can being open a bit around the edges. What is the recommended way to thin this?? Or should I just give up on the whole can and buy a new one?? I'm priming some MDF for use as utility shelving and it's a bit thick to apply easily. Thanks in advance - I'm new to this forum and this is my first post.
Old 09-19-04, 12:49 PM
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I generally don't recommend thinning primer, but you need to bring it back to life somehow. I would add just a tiny bit of water and stir real good. Or ideally, take it back to where you bought it and ask them to shake it again.
Old 10-02-04, 12:02 PM
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Thanks - I found my answer

Thanks for the advice on the primer. I ended up reading the directions on the can (duh???) and it said to thin only with about a tablespoon or two of water per gallon if necessary. It worked fine and although the primer was a bit thicker than the new can that I had just been using, it worked fine and spread well using the foam roller. I had thought the can was closed tightly but there was a section where the paint had built up and was keeping the lid from sealing properly. I dug all the gunk out with a screwdriver and hopefully it's properly closed now. Lesson learned!!

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