The REXx BL-3 is a specialized liquid designed for blackening brass parts, ideal for enhancing the aesthetic of model kits. Made in Ukraine, this new product is perfect for use with CAST brass components, such as those found in MINIWORLD machine guns. A simple dipping process lasting 20-30 seconds, possibly assisted by a brush, allows for optimal coverage and a striking finish. If you're looking to add depth and a realistic metallic appearance to your model parts, the REXx BL-3 is a must-have for your painting supplies.