Why Liquid Silicone Rubber (LSR) Outperforms Compression Molding

Precision and Efficiency:

LSR's fluid nature in injection molding allows it to fill even the tiniest cavities with exceptional precision, reducing defects and waste. This precision leads to better operational efficiency. In contrast, compression molding's manual preheating and loading process often results in inconsistencies, reducing precision and increasing waste.

Material Behavior and Stability:

LSR retains its properties over a wide temperature range, maintaining flexibility and reliability, ideal for automotive and medical industries. Conversely, thermoplastics in compression molding may degrade under high temperatures, affecting component reliability and lifespan.

Cycle Time:

LSR injection molding boasts shorter cycle times due to automated processes and rapid curing. The material is pre-mixed and heated for quick injection and curing. Compression molding, needing heating and pressurizing in the mold, takes longer, making LSR more time-efficient for large-scale production.

Automation and Labor Intensity:

Modern LSR injection molding is automated, reducing labor and human error, ensuring consistent and repeatable production. Compression molding is labor-intensive, requiring manual handling, which can lead to inconsistencies in the final product.

Waste Reduction:

LSR injection molding minimizes waste through a closed system that mixes components just before molding, allowing for recycling of unused material. Compression molding often results in material wastage due to pre-cutting raw materials, and leftovers are usually non-recyclable, posing environmental concerns.

Versatility:

LSR molding is highly versatile, accommodating various designs and applications from small seals to large components. Compression molding is limited in handling intricate designs or fine details, making LSR more adaptable for diverse manufacturing needs.

Summary:

While compression molding has its merits, LSR injection molding excels in precision, efficiency, stability, cycle time, automation, waste reduction, and versatility. These advantages make LSR a preferred choice for many manufacturers, though the best approach depends on specific project requirements.

Ray Xian

Phone/Whatsapp: +8619902910431

Email/Skype: ray.x@siliconesupplier.com