Is Alocrom 1200 RoHS compliant?
Alocrom 1200 It is completely free of Chromium (VI), is REACH, RoHS, ELV and WEEE compliant and contains no chromium or other heavy metals. Alocrom 1200 must not be used to treat foodstuff containers as it contains Hexavalent chromium.
Is Alocrom 1200 banned?
The hexavalent chromium based Alocrom 1200 which is a process we have used for many years is now on the B/T/R list (Banned / Targeted / Restricted). Unlike your previous posts, this is a through-life toxicity consideration.
What is the difference between alodine and Alocrom?
Alocrom 1200 is marketed under the name Alodine 1200 outside of the UK and drawings calling for Alodine 1200 can be coated with Alocrom 1200 and vice versa. For example, for maximum electrical conductivity, the coating is colourless to very light yellow, whereas for maximum corrosion protection it is a deeper yellow.
Is zinc yellow chromate RoHS compliant?
The RoHS Directive restricts hexavalent chromium, but does not restrict less hazardous trivalent chromium. Historically, both clear and yellow chromate conversion coatings contained hexavalent chromium compounds. Therefore all -ZI product plated after June 2002 is RoHS compliant.
What is Alocrom?
Alocrom (or Alodine in the US) is a Chromate conversion coating that is applied to aluminium alloys, which provides a level of corrosion protection. Alocrom is also good for paint adhesion and is electrically conductive.
Which is better zinc or stainless steel?
Though some Zinc alloys can be very strong, overall stainless steel is stronger. However, zinc is a heavy element, and when alloyed with other metals it provides better corrosion resistance, stability, dimensional strength and impact strength. Ultimately, which alloy to use will depend on your casting needs.
What does alodine do to steel?
This chemical reaction transforms the metal surface into a protective layer. While providing aluminum corrosion protection, the chemical film or Alodine coating also leaves a base on the surface finish for organic coatings, and it can protect against the loss of electrical conductivity.
How do you use Alocrom 1200?
For large scale continuous production, Alocrom 1200 may be applied in a conventional spray washing plant. For brush application use only Brush Alocrom 1200 liquid. This product is supplied as a two pack product.
Is Alocrom conductive?
Are there any alodines that are not RoHS compliant?
“Our Alodines listed on the QPL-81706 are not RoHS because they contain chrome. We do offer the Alodine 5200 and the 5700 that are RoHS compliant. Please let me know if you need anything else.
How much hexavalent chromium is used in Alocrom?
<< Gold and Clear Alocrom coatings have reaction mechanisms that utilise Hexavalent Chromium but the resultant items meet the directives for the following reasons. a. The electrical conductivity of the conversions requires coating weights from about 40 to 300 mg/m,sq, with the hexavalent chromium component making up not more than 15% (MSDS data).
Can you use hex chrome on Alocrom coatings?
However our Alocrom supplier has repeatedly informed us that if the coating is applied in accordance with the manufacturers instructions and correctly dried then the coatings DO comply. Their reasoning behind this is that once the coating has been cured / dried then there is no hex chrome in the final coating.
Which is RoHS compliant treatment for zinc plating?
The following treatments are RoHS compliant: Sulphuric anodising, except when dichromate sealed Hard anodising, except when dichromate sealed Zinc plating, without passivation or with our trivalent passivate (clear passivate)