Rick's Free Auto Repair Advice

Posts Tagged: Coolant Reservoir Tank

Cracked Coolant Reservoir: Plastic weld it or replace it

Learn how to fix a cracked coolant reservoir You’ll see lots of online articles on fixing a cracked coolant reservoir using epoxy. Don’t waste your time; that method doesn’t last. Coolant reservoir tanks are made from either low-density polyethylene (LDPE) or high-density polyethylene (HDPE). Polyethylene is considered a very low surface energy plastic. As such it’s really a non-stick surface and most adhesives can’t wet the surface to make a strong bond. Superglue, epoxy, RTV, silicone seal will not bond well and they definitely won’t last. If you use any … Read More


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