Cooler mash tun has a crack. Seeking ideas on how to fix or patch it.

[Bennypapa]

I got this tun in a lot of used equipment I bought. It was thrown in for free. I would like to make use of it but the crack in the inner liner causes it to leak and I can't even imagine what would grow in the wort that would inevitably make its way into the spaces between the inner and outer shell.

I'm seeking ideas on way of fixing it.
With the bulkhead removed the crack is about 5/8" for what that's worth.

Thanks.

 

[Pappers_]

Some kind of silicon sealer, perhaps? This one is good to up to 500F, but it doesn't say anything about food grade, but silicon tubing is generally considered safe.

https://www.delcity.net/store/Silic...uzlynobHsgC9AENzk2FMFz6VnTl7K49hZNhoCoJvw_wcB

 

[Redtab78]

https://www.amazon.com/dp/B005XP5HO6/?tag=skimlinks_replacement-20

 

[Sailingeric]

Any nasties in the short time of mashing would be killed when boiling.

 

[Homercidal]

Maybe silicone seal around the howl with a wide Stainless Washer? This would also help beef up the area to prevent further cracking.

The beer would be safe in any case since you are going to boil it after mashing anyway. I doubt you would have trouble with any decent sealing option.

 

[IslandLizard]

Try to get some of the silicone behind the crack too. So dig it out a little if you can.

Clean/prep surfaces with acetone before applying.

 

[day_trippr]

Any nasties in the short time of mashing would be killed when boiling.

That doesn't cover the nastiness from filling the insulated cooler cavity with wort...

Cheers!

 

[bfish]

plastic weld ….Harbor Freight and others have kits but they are more expensive than buy a new cooler. Check around at kayak shops (as they weld to repair plastic kayaks) and automotive shops (bumper cuts/scratches are removed).

 

[Red_Dog]

Find a larger diameter bulkhead fitting drill out hole use large area washers with silicon washers

 

[azdavid]

Beat me to it.. A larger diameter bulkhead or possibly just a larger washer with a silicone washer behind it would work

 

[gamerc]

RTV 108 food grade silicone will solve that problem.
https://www.amazon.com/dp/B00HL29BDC/?tag=skimlinks_replacement-20
You might be able to get it a few bucks cheaper, but that's definitely the best silicone for the job.