Manville Rubber Products (JM Clipper Seals formerly)' facilities are properly equipped and staffed to efficiently produce a wide array of products. From high volume custom injection molded rubber parts, to low volume custom compression molded parts, rubber covered rollers, oils seals, high temperature tadpole tapes, prototypes and development work and everything in between. As a contract custom rubber molder, MRP specializes in producing your proprietary design to your exact specifications.