If you need to achieve rapid manufacturing of silicone products, then silicone compression molding
It is undoubtedly your best choice. Because in the silicone industry, this is a very mature lsr molding process. Silicone molding is especially important for any application that requires hermetically sealed connectors. Without LSR molding, creating a similar enclosure would require more tooling and assembly, adding cost and the potential for assembly errors.
As more wet and outdoor applications are moving away from mechanical operations and toward electrification, improperly sealed electrical connections can cause even more harm than ever. In order to provide a suitable wire-to-wire connector seal for high-value applications, the rubber seal and its components may need to be tightly bonded together as one assembly; two-shot lsr (liquid silicone rubber) molding technology can be very costly benefits to provide such an opportunity.
Table of Contents
What is silicone compression molding technology?
Two-shot (2K) LSR molding technology is a special process that uses vulcanized silicon to create products with excellent sealing. The process consists of two independent but very important development processes:
LSR Multi-Shot Injection Molding
In 2K molding, the thermoplastic and silicone materials are injected into and formed in the same mold in one cycle. These materials will be shaped after curing is complete. This is one of the techniques of silicone compression molding, which is suitable for customers who have customized needs It is a very valuable information.
– The first shot creates a thermoplastic component.
– The second shot will coat the LSR or rubber onto the thermoplastic component. In the second shot, the LSR seal will form.
LSR molding
LSR is a high-purity silicon sulfide with low compression set, high stability, and excellent resistance to extreme temperatures. These properties make LSR an ideal material for part production, as any material quality-related issues can be avoided.
Where and why is it important?
LSR molding is especially important for any application that requires hermetically sealed connectors. Creating a similar enclosure would require more tooling and assembly, adding cost and the potential for assembly errors. So manufacturers usually recommend Customers use silicone compression molding process. These similar enclosures would also require the use of mechanical locks to hold traditional seals in place, increasing the overall package size while the market is demanding smaller packages.
In addition, the 2K process can expand design options, giving the opportunity to design better products. LSR materials have good weather ability, chemical resistance, and flame retardancy far beyond typical sealing materials used in other applications. The wider temperature range available for the 2K LSR process (-90 to +200C˚) can be used as a primary manufacturing strategy to differentiate this excellent sealing product relative to other products on the market. This is good for everyone, especially the customizers who are looking for reliable production, silicone compression molding can maximize their benefits.
Application industry
By providing a higher level of sealing, the lsr molding process can expand electrification operations to applications or environments that were previously difficult or impossible to achieve, such as commercial vehicles, marine applications, automotive and industrial electrical.
Based on our unrivaled strength in design and process, NEWTOP has successfully developed a niche market for the lsr molding process. This strength is reflected in successful projects using 2K silicone molding and in a long history of designing sealing solutions for a wide variety of applications. Our extensive experience has given us the knowledge needed to advise on different LSR binding capabilities and which thermoplastics to choose and not to choose. This is silicone compression molding, which is the modern silicone molding technology.
Externally, NEWTOP partners with leading suppliers of materials, processing, and tooling to ensure top performance in areas where seals play an important role. 2K LSR molded products take full advantage of this type of seal and are rated to IP69K sealing and pass the J2030 power wash test. Such products also reduce costs by eliminating the need for assembly steps, reducing tooling and molding costs, and reducing the amount of material used and the number of components.
