LANGLOW Boiled Linseed Oil is a refined linoleic oil based water‑repellent wood treatment suitable for all timber structures such as doors, frames, patio chairs, tables and trellis work. It delivers a rich semi‑sheen finish that restores the natural colour while protecting against water ingress and weathering. Re‑application builds up a glossy sheen for enhanced durability. Ideal for both indoor and outdoor timber maintenance.