In the industrial production of platinum-catalyzed systems such as LSR, silicone gels, and high-temp silicone vulcanizing agents, operation time (Pot Life) is the core variable determining production efficiency and yield. Hydrosilylation is extremely sensitive under platinum catalysis; without effective inhibition, compounds begin slow crosslinking at room temperature, causing "scrap rubber", waste, and narrow process windows. Traditional inhibitors often suffer from "short room-temp duration (hours to days)", "incomplete high-temp deblocking (residual inhibition causing under-cure)", and "strong odor". With escalating demands for "long pot life + fast high-temp cure" in LSR injection molding, silicone ink screen printing, etc., sourcing an inhibitor with "long-lasting room-temp control (1 week to 2 months), precise high-temp deblocking (<120℃ no cure, 130-140℃ full cure in 5-30min), nearly odorless, moderate viscosity" has become the core proposition.
Addressing this,
Anhui IOTA Silicone Oil Co., Ltd. officially launches
Hydrosilylation Inhibitor IOTA 84617. Characterized by "colorless transparent viscous liquid, viscosity ~300-500cp, almost odorless, 1KG/bottle, sealed dark cool storage, 12-month shelf life", backed by "long-lasting time-lock + precise high-temp deblocking + low-odor friendly", it serves as the "time-lock" for operation window control in addition-cure silicone systems.
Molecular Architecture: Long-Lasting Lock + High-Temp Deblock + Low Odor
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Long-Lasting Lock Mechanism: As an efficient coordination inhibitor, forms stable complexes with platinum active sites at room temp, blocking Si-H/C=C addition — achieving 1 week to 2 months operation window.
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Precise High-Temp Deblock: Complex stable below 120℃ (no cure for 1hr); at 130-140℃, coordination bond rapidly breaks, platinum releases activity, full cure in 5-30min — "cold locked, hot activated".
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Low Odor: Almost odorless, improving workshop environment vs. traditional inhibitors.
Performance Leap
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Ultra-Long Operation Window: 1 week to 2 months at room temp, solving "overnight crosslinking" pain.
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Fast High-Temp Cure: Full cure in 5-30min at 130-140℃, balancing long pot life with fast production.
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Broad Compatibility: LSR, silicone gel, HTV addition rubber, silicone ink, adhesive, platinum vulcanizing agent.
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Micro-Dosage: 1000-2500x platinum content (e.g., 3ppm Pt → 3000-7500ppm inhibitor). Cost-effective.
Application Penetration
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LSR Injection: Long window for complex molds, preventing downtime scrap.
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Silicone Gel Potting: Controlled timing for potting, thorough cure for electrical insulation.
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HTV Addition Rubber: Added in kneader/roll mill, ensuring storage stability.
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Silicone Ink Screen Printing: Prevents pre-cure clogging on screen, fast crosslink after baking.
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Addition Silicone Adhesive: Extended coating time, fast bonding after heating.
IOTA Technical Guide
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Addition: HTV in kneader/roll mill; others in planetary mixer/high-speed disperser. Ensure uniform dispersion.
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Dosage: 1000-2500x Pt content. Fine-tune per target pot life & cure profile.
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Taboo: Sealed, dark, cool storage. Away from heat/ignition. High temp/light may degrade inhibitor. Shelf life 12 months.
Industry Insight: Domestic breakthroughs in platinum catalysis kinetics and inhibitor coordination chemistry enable IOTA 84617 to
fill the key link for long operation window control in platinum-cure silicone systems, providing import-substitution with "1wk-2mo room-temp lock + <120℃ block + 130-140℃ fast cure + odorless". This confirms domestic silicone additives are leaping toward "long-lasting precise time-control inhibitors", with growing technical say in addition-cure critical additives.
