The global liquid silicone rubber market has formed a scale of 368 million US dollars in 2024 and is expected to exceed 521 million US dollars in 2031, with a compound annual growth rate of 5.3% driven by both technological iteration and application scenarios.
As a high value-added market, medical grade products, which account for 38% of the market share, are evolving towards stricter biocompatibility standards in the medical field. Liquid silicone rubber that has passed ISO10993-5 cytotoxicity testing has been developed for biodegradable implants, such as absorbable heart stent coatings that can biodegrade within 6 months.
The automotive industry benefits from the lightweight demand of new energy vehicles, and the application proportion of high-temperature resistant liquid silicone rubber in battery pack sealing and motor insulation has increased to 25%. Its electrolyte resistance performance remains stable in the range of -40 β to 150 β. In the field of consumer electronics, due to the surge in demand for sealing wearable devices, transparent liquid silicone rubber with a transmittance of over 90% and a hardness of Shore A20-30 has become mainstream, achieving color free matching in smart watch straps and wireless headphone sealing rings.
At the level of technological competition, international leading enterprises achieve an adjustable range of vulcanization speed from 30 seconds to 2 hours through molecular weight control technology, while local manufacturers break through the bottleneck of high tensile strength through nano filler modification. The changes in tariff policies have accelerated the regionalization of the supply chain layout. Chinese manufacturers have established production bases in Southeast Asia with an annual capacity of 50000 tons, utilizing local labor cost advantages and tariff preferences to expand overseas markets.
In the future, the research and development of bio based liquid silicone rubber will promote the transformation of raw material sources from petroleum based to plant-based, coupled with the development of recyclable cross-linking technology, to achieve full lifecycle greening from production to recycling, supporting its breakthrough applications in cutting-edge fields such as flexible robots and soft sensors.
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IOTA Liquid Silicone Rubber
