Quality Control All GEMPOLYM products supplied have to perform to vigorous quality control standards, and, as such, all carry a performance guarantee. Research and Development Research and development to improve performance and develop better products are continuously done in our laboratory, combined with on-site testing. New products are continuously being appraised before being marketed.   © 2000 - G.M. Associates cc P.O. Box 261 Linmeyer, Johannesburg, 2105 Voice • (011) 672-2666 , Facsimile • (011) 672-2616 Electronic • gma@hixnet.co.za