Plastic/Poly Hopper Repair

timchuck · Jul 22, 2011

Picked up a C-man aerator and seeder/spreader at a yard sale today. One problem it has a crack in the hopper about 4" long. What type of epoxy should I use for repair? I was going take the Dremel to the crack to rough it up a bit then use some JB weld to seal it up.

Thanks for any suggestions.

semipro · Jul 22, 2011

If its polyethylene I think you need to use heat to repair it. I don't think a glue will adhere well.

kettensÃ¤ge · Jul 22, 2011

Harbor Freight sells plastic welders, No experience with them and don't know if the investment will be more than the value of the spreader.

http://www.harborfreight.com/catalogsearch/result?q=plastic+welder

timchuck · Jul 24, 2011

Thanks for the ideas. I'm going to check parts direct see what a new hopper would cost.

JustWood · Jul 24, 2011

I got some epoxy from NAPA a bunch of years back. I can't count the number of things I've fixed with it.. Comes in a black double barrel syringe.
Backed into my trailer with my loader the other nite and broke the tail light lens and housing. Fixed the housing but the lens was trash. I'll look in the shop tomorrow to see what brand it was.

LLigetfa · Jul 24, 2011

Semipro said:
If its polyethylene I think you need to use heat to repair it. I don't think a glue will adhere well.

+1

I've welded poly before. The trick is to find the same grade of donor poly. There's no need for a fancy welder. I've used regular soldering irons and even open flame.

woodgeek · Jul 24, 2011

My hardware place sells an epoxy formulated for plastic--I think is basically a regular epoxy with some solvent like acetone added to swell the plastic for a better bond.

LLigetfa · Jul 24, 2011

Another thing you can do is to heat up some metal mesh and embed it into the poly. There is also a thermoplastic repair material made to fix leaks in aluminium boats. It does not have the same strength and hardness as the poly but is good to use as a sandwich for a patch. I've used it to glue fender washers over cracks.

Later · Jul 24, 2011

I have a poly lawn cart that I used to bring wood up to the house until one below zero day. It didn't fare well with splits thrown in it. I used Gorilla Tape of each side of the cracks, cleaned with acetone first. No more wood hauling, but it's fine for what it was designed for.

gpcollen1 · Jul 25, 2011

All you need is the 2 part epoxy that comes in the double tube syringe type thing. Cut some of the plastic out of the crack so the epoxy bonds through to each side. Should be pretty simple. I have used this on too many items to count...

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Plastic/Poly Hopper Repair

timchuck

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semipro

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kettensÃ¤ge

Feeling the Heat

timchuck

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JustWood

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LLigetfa

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woodgeek

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LLigetfa

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Later

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gpcollen1

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