Seed SLIK Talc seed flow lubricants are the highest quality powdered graphite lubricants available on the market. Environmentally safe, natural mineral that will not hurt seeds or plantings. Used in the mechanical plate and vacuum planters for increased lubricity and wear protection. Small seeds will slide easily off planter plates. Talc is a good alternative to graphite for planters with new electronic seed meters that sometimes give false readings with graphite. Common applications are electronic seed meter planters and vacuum planters.