Double Boiled in this country, refers to an oil that is low quality and unrefined. It has double the amount of metallic driers added and thus the name “double boiled”.
We avoid those particular driers for health and sustainability reasons.
It’s not actually boiled or heated. It’s raw, unfiltered linseed that is unsuitable for quality coatings. It has a tendency to feed mold very quickly and does not have the durability we require.
When coatings are made, we start with a good linseed oil and then filter out the impurities that are food sources for mold and mildew. Then we refine the oil so that it is more durable and dries faster without the need for certain toxic driers that were once very common in double boiled linseed oil.
For those looking for linseed oil we offer a pure linseed that is filtered and clean and does not contain any driers at all. That is called Special Linseed Oil
I would suggest trying a sample pint of the Rainforest Sealer and compare that to any double boiled linseed oil.
Rainforest Sealer comes in five gallon pails if needed.