This is the first time I have ever seen this happen. That purple
primer for PVC pipe cement was in my garage for better than a year. I
went to use it last week, and it turned pink in color. I still used
it, the joint held together, but they usually stick together with just
the cement too. However, I have always used all three, the cleaner,
primer, and cement. That way I know I have a good joint. I dont
understand the color change. I didn't get anything mixed into it.
Has anyone else seen this happen? Any idea why?
Never saw it happen, because I never use the primer. It isn't necessary. For
that matter, I never use the "PVC cleaner" either. Acetone does just as good a
job, and costs about one-tenth as much. All you need to make a good joint is
acetone, and PVC cement. Don't worry about the primer. You don't need it.
Advice like this can be counterproductive. I have never seen
primer lose its purple.
Many inspectors consider primer as a bare minimum as do glue
manufacturers and pvc manufacturers. The whole reason for the
gawd awful purple color is for easy identification by inspectors,
required in some codes.
No Purple, no pass.
Keep the whole world singing . . . .
DanG (remove the sevens)
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