DT610 Lantos Timber Preserver 5LClearance! Lantos Timber Preserver DT610 is a natural fluid film liquid coating made from lanolin derivatives. A low build, penetrating, moisture resistant timber treatment preserver. It penetrates past the surface of the timber giving a water repellent durable preserving coat. It dries slowly to a natural finish maintaining the appearance of the original weathered wood timber. Prevents drying, cracking, and splitting of wood and is a barrier to wood