Aero-Pack Industries, Inc. (API) is the parent company of D&L Industries, Inc.
D&L started its operations in 1963 by outsourcing colorants and supplying them to the plastic industry to which they also offered color-matching services.
By the time it was incorporated in 1971, D&L had diversified into the manufacture, marketing and distribution of colorants, various chemicals and additives, serving the requirement of the plastic, paint and ink industries.
In 1985, D&L Industries, Inc. started spinning-off its manufacturing and marketing activities into separate companies.