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- Order number: BMG-063
Aluminum Pretreatment - Aluminum Activator
A metallically pure surface is essential for successful electroplating.
Aluminum (Al) is a base metal (with a normal potential of -1.6 V) and forms a dense oxide layer within a short time.
a dense oxide layer within a short time. Reliable plating is impossible on an oxide layer.
In order to coat aluminum nevertheless, an intermediate layer, a so-called "zincate layer" is usually
is applied. The material can then be gold-plated, copper-plated or otherwise electroplated.
The aluminum activator works perfectly with pure aluminum, and with many Al alloys as well.
should be tested in advance.
Especially aluminum-silicon alloys do not work at all.
Please coat only with alkaline copper!
This product contains acid. However, you will receive a detailed guide so that you can work safely.
We offer here a solution with reduced viscosity, because this has many advantages.
The advantages are:
- the lower viscosity reduces the entrapment of the solution in porous casting molds (blistering of the subsequent coating)
- lower loss of chemicals (especially in unfavorable molds)
- faster deposition - higher safety of deposition on aluminum alloys containing magnesium and silicon.
Aluminiumpreparer: Now you can plate It!
Operating Conditions and Deposit Data
|Temperature||18 – 25 °C|
|Immersion time||30 seconds to 2 minutes (see notes)|
|Thickness of zinc film||0.1 – 0.2 microns|
|Agitation||Occasional work movement.|
|Appearance of deposit||Grey continuous layer|
|Special storage requirements||Away from strong acids|
|Shelf life||1 – 2 years|
|Health and Safety classification||Irritant|
|Transport (UN number)||1824|
- The aluminium article should be dipped until a contiuous grey film appears.
- If left in the solution too long, the adhesion of the zinc film is reduced, leading to
blistering and in extreme cases, lifting of the plating.
- To strip the zincated layer, dip in Cleaner for 10 minutes. Please note that once
the Cleaner has been used for stripping, it cannot be used for any other process.
Marking of the mixture:
Aluminum activator (contains sodium hydroxide)
Signal word: Danger
H290: May be corrosive to metals.
H314: Causes severe skin burns and eye damage.
H412: Harmful to aquatic life with long lasting effects.
P102: Keep out of the reach of children.
P234: Keep only in original container.
P260: Do not breathe aerosol. P280: Wear protective gloves / eye protection.
P301 + P330 + P331: IF INTOXICATED: Rinse out mouth. Do NOT induce vomiting.
P303 + P361 + P353: IF IN CONTACT WITH SKIN (or hair): Remove all contaminated clothing immediately. Wash skin with water/shower.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove existing contact lenses if possible. Continue to rinse.
P501: Dispose of contents/container to hazardous waste.