What are the best methods for repairing cracks in polyethylene outdoor pet waste bins?

Polyethylene outdoor pet waste bins are durable but can develop cracks over time due to weather exposure or impact damage. Fortunately, several effective repair methods can restore their functionality. For small hairline cracks, plastic welding using a soldering iron or specialized plastic welder creates strong, permanent bonds by melting matching polyethylene material into the crack. For larger cracks or holes, two-part epoxy compounds designed for polyethylene provide excellent adhesion and waterproof seals—ensure proper surface preparation by cleaning and roughening the area first. Another method involves using a heat gun to carefully melt and fuse the crack edges together, though this requires precision to avoid warping. For temporary fixes, high-quality waterproof sealants or specialized polyethylene repair tapes can bridge gaps. Always clean and dry the bin thoroughly before repairs, and consider applying a polyethylene-compatible UV protectant afterward to prevent future degradation. Regular inspection and avoiding overfilling can help prevent cracks from forming initially.