Plastic cement is a general term for adhesives formulated to bond plastic surfaces.

• Solvent cements chemically weld compatible plastics (like PVC, CPVC, ABS or polystyrene) by softening the surface, then hardening into a single joint.
• Contact and specialty glues grip plastic through tacky, flexible films, which can be useful for craft, trim, or larger surfaces.
• Two-part epoxies create gap-filling bonds on many rigid plastics.

It’s best to match the adhesive to your plastic type and project. Check the label for material compatibility, set time, and ventilation needs. If you’re unsure, a small test on scrap can help.

Super glue (cyanoacrylate) bonds quickly and works on many small plastic parts, but it can be brittle and doesn’t chemically fuse most plastics. Plastic glue often refers to adhesives designed specifically for plastics:

• Solvent cements for PVC, CPVC, ABS or polystyrene model kits create a chemical weld.
• Two-part epoxies offer stronger, gap-filling bonds on rigid plastics.
• Flexible adhesives suit vinyl or soft plastics.

Choose based on the plastic, joint type, and how the part will be used. For low-surface-energy plastics (like polyethylene or polypropylene), consider systems with primers formulated for those materials.

Secure bonding depends on the plastic and the job.

• For PVC, CPVC, and ABS pipes and fittings, solvent cements can create a durable chemical bond when paired with proper surface prep (and primer if required).
• For polystyrene models, plastic solvent cement typically yields a clean, fused seam.
• For structural repairs on rigid parts, two-part epoxies provide high strength and fill gaps.
• For polyethylene or polypropylene, look for systems designed for low-energy plastics, often used with a primer.

Clean, dry surfaces, snug fit, and allowing sufficient cure time generally improve bond performance. On Walmart.com, you can filter by material compatibility to help narrow options.

1. Work in a well-ventilated area and read the label.
2. Dry-fit parts; clean off dust, oils, and mold release.
3. For solvent cements: apply a thin, even coat (and primer if specified), join promptly, hold or clamp briefly, then avoid stress while it sets.
4. For contact adhesives: coat both surfaces, let them get tacky, align carefully, and press firmly.
5. For two-part epoxies: mix as directed, apply, and clamp if needed.

Temperatures and humidity affect set and cure time, so allow extra time in cooler conditions. Wiping away squeeze-out and testing on scrap can help achieve cleaner results.

Dry and cure times vary by formula and conditions.

• Solvent cements often set within minutes for handling, with stronger joints developing over several hours. Many reach full cure in roughly 24–48 hours.
• Fast-setting epoxies may gel in 5–10 minutes and build strength over 24 hours; slower epoxies can take longer.
• Contact adhesives usually bond on contact after the tack stage, with full strength building over the next day.

Temperature, humidity, and joint fit matter. Check the product’s instructions for guidance, and give extra time before applying pressure, water, or heat. When shopping, look for set time and cure time in the specs.