2026-06-01
Engineering Best Practices: Preventing Catalyst Poisoning in Addition-Cure Silicone Production Lines
Addition-cure (platinum-catalyzed) RTV-2 silicones are favored in BESS manufacturing due to their zero-shrinkage behavior and lack of corrosive byproducts during curing. However, these formulations can suffer from a phenomenon known as "catalyst poisoning." If the liquid silicone comes into contact with even trace amounts of specific chemical contaminants on the assembly line, the platinum catalyst is deactivated, leaving the compound permanently sticky and uncured.
Key Contaminants to Avoid:
To maintain 100% manufacturing yield, production engineers must ensure that battery cells, PCBs, and mixing machinery are entirely free from:
Sulfur Compounds: Often found in vulcanized rubber gloves and specific seals.
Organotin Compounds: Frequently used in lower-grade condensation-cure silicones.
Amine Compounds: Common curing agents in uncured epoxy resins and fluxes.
Hanast’s engineering support team provides comprehensive assembly-line audits and material compatibility testing for Vietnamese factories, helping you design a clean, failure-free potting process.
Target Keywords for SEO: Hiện tượng keo không khô (Silicone non-curing phenomenon), Ngộ độc keo silicone (Silicone catalyst poisoning), Quy trình đổ keo chuẩn (Standard potting procedure), Hanast technical support.
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