Carson Industries Acquires Turf-Tek GLENDORA, Calif. - Carson Industries LLC, a manufacturer of structural foam plastic and polymer concrete products, primarily used in construction of underground infrastructure, announced that it has acquired Turf-Tek Products of Riverside, Calif. Turf-Tek specializes in the manufacture of residential and light commercial outdoor drainage and water removal products, and also produces a line of "residential" grade valve enclosures for the irrigation industry.