Eden Prairie, Minnesota - Presto Black BST4 Brush-On is for most iron and steel components, Presto BlackBST4 Brush-On is designed for application on any size part in limited quantities. It solves the application challenges of immersion liquid products while producing an attractive, high quality, durable black finish. Can be sealed easily with a rust-preventative for extra finish protection.
Antique Black M24 Brush-On provides blackening or browning of brass, bronze, and copper alloys. It produces pleasing US10B finishes on either new or reconditioned components. Reaction speed and finish color is controlled by diluting the concentrate with water. Can be used undiluted for darker finishes or diluted 1% to 50% for slower reactions and lighter, brown tones.
Designed just for aluminum alloys, Aluma Black A14 Brush-On provides a durable, smooth black finish. Applied undiluted to blacken entire parts or use as a touch-up for black anodized parts that have been damaged or re-machined. Ideal for all types of aluminum parts including engravings.
Source: Birchwood Technologies