Presto Black Gel is ideal for most non-stainless iron and steel surfaces. Without runs or drips, any size surface in a vertical or horizontal position can be converted to a black finish. Presto Black Gel is applied at room temperature. Similarly, the Antique Brown and Antique Black Gels are designed for use on brass, bronze, and copper substrates to produce durable brown/black finishes on these metals.
The gel formulations are a solution when you can’t or don’t want to dip the entire part into a liquid bath container. They’re ideal for sheet metal that needs only partial finishing, for touching up parts and for adding a darkened finish to machined or ground sections of a part.
The gel chemical reaction takes 2- to 10-minutes following surface cleaning to remove oil, oxides and welding flux. Color tone and depth is controlled by visual inspection and stopping the process by rinsing off with a wet sponge and sealing the finished surface.
Another feature is that the gel finishes can be highlighted or abraded to achieve a distressed look. A final step to protect the finish and enhance the appearance is to add a clear topcoat such as a satin-gloss urethane lacquer or paste wax.
These gel finishes are user proven by furniture manufacturers, building contractors, metal manufacturers and do-it-yourselfers on a variety of projects. Additional applications include building metal furniture tubing; fascia; elevator cabs; staircase railings and handrails; sculpture; monuments and window hardware.
Birchwood Technologies gel products are available for different types of finishes:
- Presto Black Gel for gray/black on iron and steel.
- Antique Black Gel for dark brown to black on copper, brass and bronze parts.
- Antique Brown Gel for brown on copper, brass and bronze parts.
All Birchwood Technologies gel products are available in 1- and 5-gallon containers ready for application.