1. During the molding of rubber products
, after high pressure pressing, it cannot be eliminated due to the cohesion of elastomer. During the molding and parting, it often produces extremely unstable shrinkage (the shrinkage rate of rubber varies due to different rubber types). It can be gentle and stable only after a period of time. Therefore, at the beginning of the design of a rubber product, no matter the formula or mold, it is necessary to calculate the coordination carefully. If not, it is easy to cause the instability of product size and low product quality.
2. Rubber(rubber products)
is a thermosetting elastomer, while plastic is a thermosetting elastomer. Due to different types and main bodies of sulfides, there is a considerable gap in the temperature range of forming and curing of rubber, and it can even be affected by climate change and indoor temperature and humidity. Therefore, the production conditions of rubber products need to be adjusted appropriately at any time. If not, there may be differences in product quality.