Cinsidering a UDS build: Lined Vs Unlined

[phogi]

I am considering building a UDS in the future, but I am curious about something. Which is a better barrel? Food Grade Lined, or a Gas/Oil Unlined? I see alot of folks are getting a food grade barrel that has a liner, which is then burned out. Alternatively, folks getting an unlined barrel seem to have ones that had gas or some other chemical in it.

My thoughts: the liner is presumably some type of plastic - I would imagine that, in the burning of such a material, you would leave behind a substance which is just as problematic as leftover Gas/Oil residue. On the one hand, I think it does not matter, because the barrel is getting all previous materials removed via burning/scribbing/wirewheeling, then covered over with high temp paint.

So, does it matter at all?

 

[solaryellow]

The liner can be challenging to remove. I would go with the unlined drum assuming it held no dangerous chemicals.

 

[flyweed]

I'd highly recommend the unlined barrel if you can get one.  Otherwise, take the lined barrel to a sand blaster and have the sand blast that liner out..that's what I did.

Dan

 

[smokingowl]

I have battled a food grade lined drum. It is horrible, but if you can find someone to sandblast it then I would say go for the food grade one. I know people that have had the lining easily removed with sandblasting, just gotta find a person to do it.