Custom PU GF Reaction Injection Molding Products for Auto Bumper
Reaction injection molding (RIM),Rapid Molding technology
Reaction injection molding (RIM) is similar to injection molding
except thermosetting polymers are used, which requires a curing
reaction to occur within the mold. Common items made via RIM
include automotive bumpers, air spoilers, and fenders.
1. Reaction injection molding can produce strong, flexible,
lightweight parts which can easily be painted. It also has the
advantage of quick cycle times compared to typical vacuum cast
2. Another advantage of RIM processed foam is that a high-density
skin is formed with a low-density core.
3. It has more bigger size prototype when compared with VCM
technology, and it is suitable for products with heavy thickness
and the surface without sink marks
4. The cost and product development period is decreased when it
contrasted to traditional tooling technology.
The most common RIM processable material is polyurethane. Two parts
of the polyester resin are mixed together. And then reinforcing
agents glass fibers is added to the mixture. This process is known
as reinforced reaction injection molding (RIM).
Service Step for a Project
Reaction injection molding is mainly used for small batch trial in
the product development process. The main applications is in the
medical, industrial products,auto parts, beauty, sports and leisure
equipment, etc. It is particularly applicable for annual production
of dozens, hundreds, thousands of pieces of small batch production.