Coatings for Aluminum - Lumiclad®

What is Lumiclad®?

Most manufacturers send their work to an outside shop - a practice that often involves excessively long turnaround times that do not fit with today's "just-in-time" manufacturing. Though the corrosion resistance of the Lumiclad® finish will not match that of black anodizing, it is durable enough for many indoor industrial applications. Its simple process cycle allows manufacturers to do their own blackening, in-house, without the long turnaround times of outside finishing. This feature creates opportunities for the user to streamline workflow patterns, reduce inventory levels, speed shipment of finished product and reduce costs.

The Lumiclad® Process is Simple

For most aluminum alloys, the Lumiclad® process takes about 30 minutes and utilizes the following steps:

Step 1: Safe Scrub® Etch Cleaner:
Cleans and micro-etches the metal surface. Immerse parts for 8 minutes at room temperature.

Step 2: Water Rinse:
Clean water; 20 seconds.

Step 3: Lumiprime® Primer/Prep:
Deposits a primer coating to prep for blackening.
Immerse parts for 8 minutes at room temperature.

Step 4: Water Rinse:
Clean water; 20 seconds.

Step 5: Lumiclad® Black Oxide:
Blackens the metal surface. Immerse parts for 10 minutes at 200° F.

Step 6: Water Rinse:
Clean water; 20 seconds.

Step 7: Dri-Touch® DS Dewatering Sealant:
Displaces water & seals the black finish.

The finished black surface has a very smooth, semi-gloss appearance, with no ruboff.

Note: Extrusions and heavily corroded parts may require bead blasting or more extensive etching in order to properly prepare the surface for blackening. Your Birchwood Technologies representative can guide you.