it's a polymerized linseed oil base, mixed with mineral spirits. So yeah, mineral spirits can be used for thinning (and that's exactly what Birchwood Casey told me when I asked them)
The info I'm looking for more is the thinning ratio that would be ideal for spraying, and whether or not Naphtha works better for this particular application.
The info I'm looking for more is the thinning ratio that would be ideal for spraying, and whether or not Naphtha works better for this particular application.
