ChemSpec, Ltd. is distributor for Birch Chemicals in North America. Birch Chemicals (formerly Innovo Chemicals) Limited specializes in the manufacture of tightly specified calcium oxide desiccants and calcium hydroxide curing agents. These products are used mainly in the plastics, rubber and coatings industries. We recognize that the disciplines of quality, health and safety and environmental management are an integral part of its management function.
Innovo Chemicals Ltd is quality assured to ISO 9001:2008 with the British Standards Institution (Certificate Number FM 21195). This confirms our commitment to the supply of high quality products and the maintenance of quality assurance.
Rubber Compounding: ChemSpec, Ltd. distributes Innovox Calcium Oxide. The folks at Birch Chemical say that: “Innovox is an essential ingredient in rubber compounds that are vulcanized at atmospheric pressure. It can be used in both natural and synthetic rubber based compounds that are to be extruded and continuously vulcanized into either foamed or solid sections.Minimal porosity will be achieved using Innovox calcium oxide, quantities of addition will depend on the moisture content. Innovox calcium oxide can be recommended in the foamed extrusion of SBR or Neoprene to improve the call structure and surface finish of the end product. Innovox can retard curing rates when thiazole or sulphenamide accelerators are employed and compounds may have to be reformulated accordingly. In sponge products, calcium oxide can also affect the expansion ratio of the formulation and minor formulation adjustments may be required.”