How to Use UPVC Solvent Cement by Plastochem – A Step-by-Step Guide & Common Fixes

 UPVC solvent cement by Plastochem is a powerful adhesive used to create leak-proof joints in UPVC pipes and fittings. However, improper use can result in weak bonding, leaks, or unsightly finishes. This guide outlines step-by-step usage instructions, common mistakes, and how to avoid them for a successful, durable installation.

✅ Step-by-Step Guide to Apply UPVC Solvent Cement

Step 1: Surface Preparation

• Clean the outer surface of the pipe and the inner surface of the fitting using a clean cloth.
• Remove dust, grease, oil, and moisture completely.
• For best results, apply a primer to prep the surface and improve bonding.

Step 2: Cement Application

• Stir the UPVC solvent cement gently.
• Apply an even, thin layer of cement to both surfaces using a proper applicator or brush.
• Ensure full coverage without over-applying.

Step 3: Joining the Pipes

• Immediately after applying the cement, push and twist the pipe into the fitting.
• Hold the joint firmly for at least 30 seconds to allow initial setting.

Step 4: Cleaning Excess Cement

• Wipe off excess cement around the joint using a clean cloth before it dries to ensure a neat finish.

Step 5: Drying and Curing

• Allow the joint to dry for 15–20 minutes before handling.
• Let it cure fully for up to 24 hours before pressure testing or using the pipeline.

 

⚠️ Common Problems & How to Fix Them

1. Pipes Not Bonding Properly

• Cause: Dirty or uneven surfaces, wrong cement amount, or uneven application.
• Fix: Clean surfaces thoroughly and use a primer. Apply cement evenly.

2. Leakage at Joints

• Cause: Insufficient drying time or poor pipe alignment.
• Fix: Allow at least 15–20 minutes for drying. Ensure a tight push-fit connection.

3. Cement Dries Too Fast

• Cause: Working in hot weather or leaving cement open.
• Fix: Close the lid tightly after each use. Work in shaded or cooler areas and apply cement to small sections.

4. Messy Joint Appearance

• Cause: Applying too much cement or delaying cleanup.
• Fix: Use only a thin layer of cement. Wipe off excess immediately after joining.

5. Weak Joints After Drying

• Cause: Not holding pipes long enough or using expired cement.
• Fix: Hold joints for at least 30 seconds. Always check the expiry date before use.

6. Slow Drying in Cold Weather

• Cause: Low temperature delays curing.
• Fix: Work in a warmer environment and allow extra drying time.

7. Strong Odor or Fumes

• Cause: Solvent evaporation during application.
• Fix: Ensure proper ventilation. Use a fan or wear a mask if necessary.

8. Cracks Near Joints

• Cause: Excess force or too much cement weakening the material.
• Fix: Apply gentle pressure and use only the required amount of cement.

9. Cement Sticking to Hands/Tools

• Cause: Contact with skin or equipment during application.
• Fix: Wear gloves and clean tools immediately after use.

 

❓ Frequently Asked Questions (FAQs)

Q1: How long does UPVC solvent cement take to dry?
➡️ Initial set in 15–20 minutes; fully cures in 24 hours.

Q2: Can I use this cement on other types of pipes?
➡️ No, it is specifically made for UPVC pipes and fittings.

Q3: What if I spill the cement?
➡️ Wipe immediately with a cloth. Use solvent-based cleaner for dried cement.

Q4: Is it safe for drinking water pipelines?
➡️ Yes, if labeled as safe for potable water use.

Q5: Can I reuse leftover cement?
➡️ Avoid using old or expired cement. Always use fresh product for best results.

 

📞 Contact Plastochem for More Help

• Address: 3359, Amba House, Hauz Qazi, Delhi-110006
• Phone: +91-11-49091506, 23271908, 23251908
• Mobile: +91 9873680640
• Email: info@kgplastochem.in
• Website: www.kgplastochem.in