... is mainly used for model design of manual mold, PVC plastic molds, cement products, low melting ... , pad printing allocation, Electronic equipment antivibration, etc. b. Model Codes of Manual Molding Silicone Rubber HY-528 ... A is a flowable liquid silicone rubber, part B is the curing agent. Firstly, after your ... , then you should deal with the original mold or products carefully before molding. Such as ...