Megapoly MG-30 Poly methyl methacrylate grafted into a natural rubber latex Akrochem Rubber - Natural rubber, NR ADHESIVE >> Hot-melt >> Pressure sensitive (HMPSA) MG-30 is modified, high performance, specialty natural rubbers prepared by graft polymerization of poly methyl methacrylate (PMMA) into a natural rubber latex. The number in the name denotes the percent of PMMA graphed to the elastomer; thus MG-30 has 30% PMMA and 70% natural rubber. The PMMA imparts stiffening and hardening characteristics to rubber compounds. An important use of MG-30 is in solution adhesives especially pressure-sensitive adhesives for bonding dissimilar materials. Adhesive compounders utilize these specialty elastomers in various different tape compounds including: PVC electrical insulation, paper craft, masking, protective and surgical tapes. The plastic-like nature of the methyl methacrylate lends itself to preparation of high hardness/modulus, good physical properties, impact resistant, easy-processing rubber compounds. MG- 30 can be blended with natural rubbers for intermediate durometers. It is cured essentially like conventional natural rubber. The viscosity and scorch properties are excellent compared to a highly loaded black compound. MG-30 is stiff and non-tacky at room temperature. Its thermoplastic nature allows good processing (calendaring and extruding) high durometer stocks. Other applications include: chopping boards, roller skates and wheels, rigid tubing, electrical plugs and molded article-trays, bowls, swimming fins, etc. Modified, high performance, specialty naturel rubber prepared by graft polymerization of poly methyl methacrylate (PMMA) into a natural rubber latex. Used in solution adhesives especially pressure-sensitive adhesives for bonding dissimilar materials. Possesses high hardness/modulus, good physical properties, impact resistance. Can be blended with natural rubbers for intermediate durometers. Provides good viscosity and scorch properties.