Suitable surface sealant
- I am in the process of building a still. I was wanting to use a 25
lb. weight for the still lid because it holds the meter long columb
and the almost as long condenser very steady. I stripped all the
paint off the weight, and found it was cast iron underneath. Does any
one know of any paint or sealant I might be able to apply to make this
safe? Polyurethane maybe?