Welcome to Canadian Rubber Testing and Development Ltd




CRTD is a technology laboratory located in St. Catharines, Ontario where the emphasis is on rubber compound formulation and product development.

Since 1992, CRTD has focused considerable research into compound formulation, mixing and vulcanization optimization for development of Hypalon, EPDM, NBR, HNBR, SBR, and NR molded goods, sponge products, extrusions, roll cover compounds, and latex dipped goods for large and small companies alike.

CRTD has developed proprietary processes for devulcanization and re-use of scrap rubber.

The principal of CRTD is Marvin Myhre, a chartered chemist with 40 years of experience with Dunlop Ltd., CVL Products Ltd., and as a consultant. He has extensive experience in the research and development of materials and rubber compound development.

CRTD is supported by associates with broad experience in the rubber industry. Duncan MacKillop, and associate, is a professional engineer with 45 years of experience with Polysar Ltd., Dunlop Ltd., and as a consultant. He has developed patented rubber medical products, and has been extensively involved in technology transfer and litigation support.

CRTD works closely and confidentially with our clients to define their goals and objectives and to achieve results at minimum cost.


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