Oil Board is used in stencil machines to cut messages for marking and coding crates, boxes, pipes, and other surfaces where large letter coding is needed. MSSC genuine oil board is made with exceptionally high-quality paper board treated with a special combination of oils to resist ink bleed-through. Manufactured and cured in the USA. Cut with the grain to maintain rigidity. Ideal for flat or curved surfaces. MSSC is the best quality stencil board on the market.