- Color will vary from light tan to black depending on alloy and thickness.
- Coating PENETRATES base metal as much as builds up on the surface.
- The term THICKNESS Includes both the buildup and penetration.
- Provides very hard ceramic type coating.
- Abrasion resistance will vary with alloy and thickness of coating.
- Good dielectric properties.
- Corrosion resistance is good, but recommend seal hard anodize In 5% dichromate solution where increased corrosion resistance is required. Where extreme abrasion resistance is required do not seal as some softening is encountered.
Advantages of an Aluminum Hard Anodized surface:
- Corrosion resistance
- High dielectric strength
- Abrasion resistance
- Color will vary with alloy.
- Aluminum with low alloying elements will show practically no color change.
- Best coating on aluminum for dyeing.
- Can be dyed practically any color or shade (Black, blue, red, etc.).
- Salt spray requirement is 336 hours 5% solution per method 811 of FED-STD-No. 151.
- Minimum weight for Type 11 coatings: Class 1 600 Milligrams/sq. it, Class 2 2500 Milligrams/sq. ft.
Advantages of an Aluminum Anodized surface:
- • Corrosion resistance
- Dimensional control
- Clean surface
- Non-conductive surface
- Color stability
IRIDITE / ALODINE
- Materials qualified produce coatings that range in color from clear to iridescent yellow or brown.
- For maximum protection against corrosion, for surfaces to be painted or left unpainted.
- Class 3 chemical coatings are intended as a corrosion preventive film for electrical and electronic applications.