Boiled Linseed Oil Replaces the natural oils in wood Weather protection Size: 500ml Bartoline 500Ml Boiled Linseed Oil | 0251-32 Bartoline Boiled Linseed Oil is suitable for use on soft wood garden furniture. The oil protects wood from drying out after long periods in the sun and gives wood a natural sheen that lasts. Also contains additives to speed up the drying process. Hardwoods such as Oak and Teak should be treated with Bartoline Teak Oil.