Tikkurila Supi Clear Sauna Wax (0.9 Liter) is a water-borne, natural-wax treatment created to protect interior sauna wood while keeping its color and grain visible. Ideal for benches, paneling, ceilings, doors, and window frames, it penetrates deeply and dries to a silky matte finish that won’t look plastic or overly glossy in warm light. The wax-enriched formula helps sauna wood resist sweat, moisture, and everyday abrasion, so surfaces stay cleaner and more sanitary between sessions. Easy to apply with low odor, this 0.9 L size is perfect for home saunas or smaller refresh projects where you still want professional-level results. The result is a unified, moisture-shedding surface that stays beautiful through repeated heating cycles.