Also it is cheap and easy to apply.
Linseed or mineral oil on wood gutters.
When raw oil is applied to wood it stays wet.
Linseed oil extracted from flax seed is one of the most useful natural oils.
Linseed oil also known as flaxseed oil is one of the most popular wood finishes in the world.
It is used as a preservative for wood concrete and an ingredient in paints varnishes and stains.
I thought raw was the preferred type but the 4 quarts of boiled sitting on the shelf left over from a garage cleanout many moons ago have got me confused.
If you regularly clean your gutters unboiled linseed oil will last as long as cuprinol clear.
Like other hand rubbed oil finishes linseed oil saturates deep into the wood grain to protect against scratches and changes in humidity.
It creates a seal that prevents moisture from getting trapped in the wood while creating a barrier that keeps rain water out.
The largest part of maintaining gutters is keeping them clean.
The important thing is that you keep the wooden gutters well oiled.
Others believe that it is best to avoid linseed oil and instead use something like motor oil or mineral oil.
Rub the oil into the wood in circular motions with a clean cloth.
Spread the oil around the surface of the wood using small circular motions to completely coat your project.