Yes, Flex Seal and similar rubberized spray or tape products can provide a temporary emergency patch for minor, low-pressure leaks on drain pipes or gutters. However, professional plumbers consider them short-term band-aids rather than permanent repairs. Flex Seal struggles to adhere permanently to wet, pressurized supply lines or oily PVC surfaces, and over time, water pressure and thermal expansion will cause the rubberized coating to peel away, leading to a renewed leak. Verification: Replace temporary rubberized tape patches with proper replacement pipes or fittings as soon as possible.
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