hard oil

hard oil

A hard-drying interior oil or varnish.
References in periodicals archive ?
The company plans to operate in cooking oil and hard oil (food oil).
Those states are the epicentre of US fracking, the use of high-pressure fluids to fracture hard oil shale rock.
There is great interest in the new containers and trials are currently taking place for a number of high-profile clients that regularly buy large quantities of hard oil from The Kerfoot Group.
Hard oils can be extracted so much more easily when they are heated back to liquid, so we saw this as an important step towards improving the service that we provide to our customers.
As time goes on and as you become more experienced, you can make it with more liquid oils and less hard oils, and more floral waters, teas, and herbal oil infusions.