I started out using thick leather gloves, and that worked well. Then I got a pair of actual welders leather gloves, and they kept my hands much cooler than the original pair, but the dexterity went down significantly. Now I use a pair of gloves that are sold for use in the kitchen, called 'The Ove Glove' and I find that they keep my hands cool, and I can still move all my fingers, they're comfortable to wear for extended periods too. My pair are older ones, and don't have anything to aid gripping, the ones they make now have silicone dots on the palm and fingers to aid in gripping stuff. When the pair I have now wears out, I will replace them with the newer style ones, as I really like them. Of course they wouldn't be too good if lead was spilled directly on them, as they're a loosely woven kevlar, and lead could probably get thru the pores, but for keeping my hands cool, they work great!