Boston Industrial Solutions Launches Citrine® CAL-685 Silicone Primer

WOBURN, Mass. - Aug. 20, 2025 - PRLog -- Boston Industrial Solutions, Inc., a leader in innovative silicone and industrial coating technologies, announced today the release of its latest breakthrough product: the Citrine® CAL-685 Silicone Primer.

The Citrine® CAL-685 is a specialized adhesion promoter engineered to optimize bonding between unvulcanized platinum-based liquid silicone rubber (LSR) and a wide range of substrates during the overmolding process. Designed for both initial and secondary vulcanization, the primer delivers unmatched versatility and performance.

Key benefits of Citrine® CAL-685 include:

• Superior Adhesion: Ensures strong, reliable bonding of silicone rubber to an extensive array of materials including organic glass, aluminum, bakelite, nylon (PA), polyimide, and epoxy resin.
• Exceptional Durability: Provides resistance to water, alkali, oils, solvents, and harsh environmental conditions making this product a superior choice for longevity.
• Process Versatility: Compatible with platinum-based LSR and BPO-vulcanized PSA raw silicone and suitable for both primary and secondary vulcanization processes.

With its advanced formulation, Citrine® CAL-685 expands the design possibilities for manufacturers across industries such as medical devices, automotive, consumer electronics, aerospace, and injection molding - where reliable silicone-to-substrate adhesion is critical.

"Our mission has always been to innovate and empower manufacturers with reliable, high-performance solutions," said Bonaventure Mutuku, COO of Boston Industrial Solutions. "This silicone adhesion promoter represents a natural progression from the insights gained in developing leading silicone inks and UV ink adhesion promoters. It signifies a substantial advancement, delivering unparalleled adhesion performance across diverse materials and exhibiting robust resistance in the most challenging environments."

The new primer is available immediately worldwide through Boston Industrial Solutions and authorized distributors.

For more information about Citrine® CAL-685 Silicone Primer, please visit https://bostonindustrialsolutions.com/silicone-rubber-primers/cal-685-silicone-primer or call (781) 281-2558.