Why identify the bin's plastic before choosing an adhesive?

Plastics that look alike can bond very differently. Check the molded recycling or material mark when available; polypropylene and polyethylene often need a purpose-made system or plastic welding rather than a general plastic epoxy.

What does a backing strip add to a crack repair?

A compatible strip or mesh spreads stress beyond the narrow crack line and gives the adhesive more area to grip. Place it where it will not interfere with the bin's fit, lid, or contents.

Will rigid epoxy hold on a bin that flexes?

It may release or crack when the plastic repeatedly bends. A flexible repair system, a plastic-specific adhesive, or plastic welding is a better match when flexing is part of normal use.

Can a repaired plastic bin still store food?

Only when the complete repair system is explicitly documented for that food-contact use after cure. Otherwise, use the repaired bin for non-food storage, especially when adhesive or backing material is exposed inside.

All articles

Guide

Repair a cracked plastic bin

Use 2-part plastic epoxy for this repair. Formulated to wet out hard plastics that ordinary glues bead off.

Plastic

This task involves: Flexing or movement

Best Glue for This Repair

2-part plastic epoxy

Formulated to wet out hard plastics that ordinary glues bead off.

Not for: Flexing or movement

Reviewed and adjusted by an editor.

Why 2-part plastic epoxy Works Here

Two very different families hide under one word. Rigid PVC, ABS, and acrylic bond well; waxy PP and PE shrug off ordinary adhesives.
Wets out hard plastics that ordinary glues bead off.

How to do it

Repair a cracked plastic bin: Step by Step

Identify the plastic if you can — waxy PP/PE bins resist most glues.
Wash, dry, and scuff the crack area with sandpaper.
Mix 2-part plastic epoxy and work it into and across the crack.
Back the inside with mesh or a strip of plastic for strength.
Cure fully before filling the bin with anything heavy.

Conditions

When to Use a Different Glue

If the bin is polypropylene (recycling code 5), even plastic epoxy is a maybe — a specialty primer or a soldering-iron weld works better. A bin that flexes in use wants a flexible repair, not rigid epoxy.

Articles

Why This Repair Works This Way

Why glues don't stick to smooth plastics (and what actually works)Storage bins, toys, and bottle caps shed super glue and epoxy like water off wax. Here is how to identify non-stick plastics and the two methods that hold.

Questions

Common Questions About This Repair

Why identify the bin's plastic before choosing an adhesive?: Plastics that look alike can bond very differently. Check the molded recycling or material mark when available; polypropylene and polyethylene often need a purpose-made system or plastic welding rather than a general plastic epoxy.
What does a backing strip add to a crack repair?: A compatible strip or mesh spreads stress beyond the narrow crack line and gives the adhesive more area to grip. Place it where it will not interfere with the bin's fit, lid, or contents.
Will rigid epoxy hold on a bin that flexes?: It may release or crack when the plastic repeatedly bends. A flexible repair system, a plastic-specific adhesive, or plastic welding is a better match when flexing is part of normal use.
Can a repaired plastic bin still store food?: Only when the complete repair system is explicitly documented for that food-contact use after cure. Otherwise, use the repaired bin for non-food storage, especially when adhesive or backing material is exposed inside.