High-Ratio Foamed Silicone Ultra-Light Silicone Foam

As the automotive and electronics industries continue to pursue weight reduction and energy savings, demand for lightweight materials is growing rapidly. Conventional foam and rubber materials have relatively high density and limited weight benefit per unit, making it difficult to combine lightweighting with sealing and cushioning performance; some imported low-density foaming materials are expensive and slow to deliver, restricting rapid capacity expansion in precision manufacturing.

The newly launched high-ratio ultra-light foamed silicone uses a two-component platinum addition-curing system. The foaming ratio is adjustable from 2x to 10x by grade, with cured density as low as 0.105 g/cm3, uniform pores, low linear shrinkage and stable rebound. The material is light, soft and pleasant to the touch, with no migration or shrinkage, suitable for long-term cyclic use. It also meets UL94-V0 flame retardancy with good electrical insulation, and supports long-term service from -65℃ to 200℃ — neither softened at high heat nor brittle in low temperatures — adapting to a wide range of demanding conditions.

On the application side, the product can be widely used in lightweight sealing gaskets, strips and foam boards; damping and thermal insulation cushioning parts for electronics; automotive interior and seat cushion filling; sports and protective equipment padding; mattress, seat and lumbar cushion filling; lightweight filling for robots and soft goods; and packaging protection and vibration damping for precision parts. Part A and Part B are mixed at a 1:1 ratio, followed by stirring, vacuum degassing and heat curing. The material supports automated casting and die-cutting secondary processing. For downstream factories, it delivers significant weight reduction while maintaining sealing and cushioning performance, helping improve product lightweighting and assembly consistency.

HONG YE JIE has established a full-process quality control system covering raw material inspection, precision proportioning, high-ratio system dispersion, filtration and purification, and finished-product performance testing. Before shipment, the new product undergoes foaming ratio, density consistency, rebound performance, flame retardancy and temperature resistance, and appearance quality testing to ensure every batch is stable and reliable. The product is supplied in independently sealed A/B drums with multiple packaging options, shipped as non-dangerous goods, and convenient for overseas customers' warehousing and customs clearance. The company also supports custom development, adjusting foaming ratio, density, hardness, color and curing speed according to working conditions, and provides sample testing and technical guidance.

A HONG YE JIE representative said that high-ratio ultra-light foamed silicone is a key new product the company is introducing for the lightweighting market. Going forward, the company will continue to upgrade Foamed Silicone material technology, strengthen its advantages in high foaming ratio, low density, soft rebound and flame retardancy, and provide globally competitive domestically produced silicone material solutions for automotive, electronics, sports protection and home soft goods manufacturers.