Slime for tires

[gravel roads]

When I bought my Argo, I had posted that my property is loaded with hawthorn trees and I asked if the tires would hold up to the thorns. Someone was kind enough to tell me about Slime.
Well, I have a soft tire. I went to Home Depot and found the Slime, but it comes in 2 catagories; one for tube tires and one for tubeless.
My question is, Are Argo tires tubeless?

Thanks for any help here.

[LarryW]

Argo tires are tubeless unless a previous owner put tubes in them.

[Slimpickin]

I put a 16 oz tube of that stuff in each tire. Mine are tubless. I haven't had a flat in two years. I also put the same stuff in a friends tires that had tubes. It works fine and he hasn't had a low tire for a while. If I had a tire go low I'd put in another 16 oz, fill to three pounds of air and I'd be on my way.

Slim