Back in 1953, the founder of our company, Percy Harms, was selling flat stock steel to mold builders. Plastics and injection molding were still in their infancy and the number of products available to molders was quite limited.While working with the tool builders Percy got to know some of the injection molders. They complained to Percy that the plastic parts were constantly sticking in the molds, causing a decrease in productivity. At this same time Percy had a cousin who was working in the burgeoning aerosol industry. So Percy asked his cousin to put some silicone oil in a can for these molders to try. Hence the first Sli