CHROMATE CONVERSION COATING (CHEM-FILM) FOR ALUMINUM
Chromate Conversion Coating Services Available:
Our experts provide Chromate Conversion Coating (Chem-Film) services to MIL-DTL-5541F spec in Clear and Gold. Chemical conversion coatings corrosion prevention on unpainted aluminum, and also improve adhesion of aluminum painting and aluminum alloys. Chem-Film may be utilized for products where the exterior surface does not require paint, but the interior service does.
Type II Clear MIL-DTL-5541F Cl 1A or 3
- When you need that natural aluminum look with all the benefits, this is your go-to. It is also RoHS 3 compliant.
Type I Gold MIL-DTL-5541F Cl 1A or 3
- For a touch of elegance and added corrosion resistance.
Benefits of Chem-Film Coating on Aluminum:
Ideal Primer:
Chem-Film acts as an ideal primer, helping subsequent paints, adhesives, and other organic topcoats adhere seamlessly. It’s like prepping the canvas before the masterpiece.
Fingerprint Repellent:
Soft metals like aluminum are prone to fingerprint smudges. Chem-Film keeps them at bay, maintaining that pristine appearance.
Quick & Easy Application:
Whether by immersion, spray, or brush, applying Chem-Film is a breeze. Fewer steps mean cost efficiency.
Dimensionally Minimal:
The thin coating—typically 0.00001 to 0.00004 inches (0.25 to 1 μm)—doesn’t alter part dimensions. Your aluminum stays true to its form.
What is Chem-Film Coating?
Chem-Film, also referred to as Alodine or Chromate Conversion Coating, is a magical transformation for aluminum and other metals. Imagine it as a protective cloak that shields your aluminum components from the elements. Here’s the lowdown:
Chemical Alchemy:
- During Chem-Film application, the metal undergoes a chemical reaction at the surface. Unlike plating, which adds a new layer, Chem-Film transforms the existing metal surface into a protective layer. It’s like giving your aluminum a secret superpower.
Corrosion Protection:
- The primary benefit of Chem-Film is its ability to fend off corrosion. Rain, humidity, and aggressive substances? No match for this invisible shield.
Adhesion Enhancement:
- But wait, there’s more! Chem-Film leaves a base layer that improves the adhesion of organic coatings (think paint or primer). It’s like giving your aluminum a sticky note for better grip.
Electrical Conductivity:
- Chem-Film also ensures that your aluminum maintains its electrical conductivity. No shorts or glitches here!