尼日利亚采购需求：二氯、三氯、消泡剂、MCA、DADMAC、PAM

I'm a paint manufacturer from Nigeria facing challenges with excessive foam and microbubbles in my satin/silk emulsion paint. The gloss and leveling are great, but the foam issue during mixing and application is significant. I'm looking for a high-quality silicone defoamer or antifoam agent suitable for my product. Please recommend the best grade for satin paint, dosage per 200L drum, and the preferred stage for addition (grinding or let-down). Also, let me know the minimum order quantity and pricing.