I've wondered about GB Linspeed. The SDS suggests that it's about 50% petroluem distillates. Does that just mean that it's thinned in mineral spirits?

On the Japan Drier, I bought some from an art store. It was very viscous and the same color as linseed oil. It is cobalt based. Sounds very different than what is bought at the hardware store. Anyone have experience using this type of drier?

It's something like this.
Link to product

Jim