Thiourea 99% Electronic Grade Additive Copper Electroplating PCB Surface Treatment

Thiourea 99% Electronic Grade Additive Refine copper electroplating and PCB surface treatment performance CAS 62-56-6Assay ≥99%Low Metals Electronic grade Thiourea (CH4 N2 S) is produced with tightly controlled metal and chloride impurities for use in electronics chemistry. As a bath additive it improves grain refinement, throwing power and surface uniformity in copper electroplating, supporting reliable PCB and connector metallization. Why Electronic Grade Low Impurities