How to Avoid and Fix Common Problems When Using UPVC Solvent Cement

 

How to Avoid and Fix Common Problems When Using UPVC Solvent Cement



Q: Why don’t my UPVC pipes stick properly after applying solvent cement?
A: This usually happens if the pipe or fitting surfaces are dirty, uneven, or not properly prepared. Dust, grease, or moisture can prevent the adhesive from bonding. It may also occur if too little, too much, or uneven cement is applied.
How to fix it:

  • Always clean the pipe and fitting surfaces thoroughly before applying Plastochem UPVC solvent cement.

  • Use a primer to prepare and smooth the surfaces for better adhesion.

  • Apply the cement evenly with a brush, ensuring full coverage.

Q: What causes leaks at the joint after using UPVC solvent cement?
A: Leaks often occur when the cement hasn’t had enough time to cure, or if the pipes weren’t pushed together fully. Mismatched pipe and fitting sizes can also lead to poor sealing.
How to prevent leaks:

  • Let Plastochem UPVC solvent cement set for at least 15–20 minutes before pressure testing.

  • Push and slightly twist the pipes firmly together to create a tight seal.

  • Always ensure that pipe and fitting sizes match perfectly.

Q: Why does my solvent cement dry too fast before I can join the pipes?
A: If the cement hardens too quickly, it’s likely due to excessive exposure to air or high temperatures. This means it won’t bond effectively.
How to fix it:

  • Keep the Plastochem cement container tightly closed when not in use.

  • Work efficiently and apply cement to small sections to limit air exposure.

  • If working in hot conditions, try to apply cement in shaded areas or during cooler times of day.

Q: How can I avoid excess solvent cement spilling outside the joint?
A: Excess cement creates an untidy, unprofessional finish and can even weaken the joint over time. This often happens from using too much cement or failing to wipe off the overflow.
Solution:

  • Use only a thin, even layer of Plastochem solvent cement—enough to bond securely but not overflow.

  • After joining the pipes, immediately wipe off any excess cement with a clean cloth before it dries.

Q: Why do my joints feel weak or even come apart after drying?
A: Weak joints are typically caused by not holding the pipes together long enough for the cement to set, or using old, expired cement that’s lost its adhesive strength.
How to avoid this:

  • Hold the joined pipes firmly together for at least 30 seconds to let Plastochem solvent cement begin setting properly.

  • Always check the expiry date on the cement container and use only fresh product to ensure maximum bonding strength.

✅ Looking for reliable, high-quality UPVC solvent cement?
Trust Plastochem for premium-grade UPVC solutions that deliver leak-proof, durable joints every time. Our specially formulated solvent cements help avoid common pitfalls, making your installations faster, cleaner, and longer lasting.

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