How are plastic substrates prepared for electroless plating?
PLASTIC SUBSTRATES, SUCH AS ABS, ARE SUBJECTED TO A PROCESS IN WHICH THE NORMALLY SEPARATE CLEANING, ETCHING, SENSITIZING AND ACTIVATING STEPS ARE COMBINED INTO A SINGLE OPERATION AND THE THUS-CONDITIONED SUBSTRATE IS THEN PLATED ELECTRLESSLY WITH A DESIRED METAL. THE COMBINED CLEANING/ETCHING.
Is anodizing a coating?
Anodizing is a simple electrochemical process developed 100 years ago that forms a protective coating of aluminum oxide on the surface of the aluminum. The lifetime of the finish is proportional to the thickness of the anodic coating applied. ... The coating is integral to the metal and can not peel or flake.
Can aluminum be blued?
"bluing" metal is mostly for steel. It creates an almost black look. It's a chemical process that reacts with the surface of the steel. This look can be mimicked with surface coat material they sell for steel, but it will not work on aluminum.
What is the purpose of anodizing aluminum?
Anodizing is a method for changing the surface chemistry of metals and other substrates. It protects against corrosion, enhances aesthetic qualities, resists scratching and is one of the most durable surface finishes available. Anodizing can be done on a range of materials, but today let's look at aluminum.
How long will anodized aluminum last?
How do you specify anodized aluminum?
The various types of anodized finishes are designated by the letter “A” followed by a two- digit number to call out the specific anodic finish. Finishes designations may be used singly or in conjunction with other designations to specify a complete finishing system.
What is hard anodizing process?
Hard anodizing is the term used to describe the functional refinement of aluminum components as anode in special, cold electrolytes. This process is sometimes also referred to as hard coat anodizing. Hard anodizing creates very thin, non-metallic conversion coatings.
Can you anodize 7075 aluminum?
Anodized 7075 aluminum is one of the toughest forms of aluminum available. By removing aluminum oxide from 7075 aluminum and creating a porous surface to which any of a number of hard coatings can be applied, you make the aluminum not only much stronger, but also resistant to practically all types of corrosion.
What does clear anodized aluminum look like?
The actual appearance of clear anodized aluminum ranges from an extremely light shade of gray to a dark, richer color. The thicker the coating is, the darker the color will also be. The clear anodized aluminum process involves washing the metal with specific chemicals for the process.
How do you remove scratches from anodized aluminum?
take 800 grit sandpaper (silicon dioxide - black - waterproof) and place wet over the scratch area. then, using gentle taps, strike the back side of the paper with a small rubber mallet, or a wooden dowel. keep tapping and checking the scratch area until the scratch is "gone".
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