This is Activator Type II formulated specifically for use with the “Dow 7”
conversion coating process for magnesium alloys. Type II is chosen for
use on die cast alloys. Being more aggressive than Type I, it is formulated
to remove the die casting skin that naturally forms on cooling.
Specification & Certifications:
The coating produced by proper application of this solution along with the
Dichromate solution, conforms to SAE AMS-M-3171, Type III (formerly
MIL-M-3171, Type III), sometimes referred to as “Dow 7”.
Castings containing bearings, studs, and inserts of brass, bronze, steel and
cadmium-plated steel may be treated using this activator. Note that aluminum
inserts will be rapidly attacked by this activator.
This formulation contains Hydrofluoric Acid that is highly corrosive to skin
and bones. Use only with appropriate personal protective equipment (PPE)
which includes neoprene waders, a chemical apron, neoprene gloves,
face shield, and either a fume hood or other suitable ventilation.
Click here to download Material Safety Data Sheet (MSDS)
**This is the most dangerous industrial acid in existence**
Attacks calcium in bones. Strong irritant to eyes and skin. Highly corrosive to skin
and mucous membranes. Toxic by inhalation and ingestion. Will attack
glass specifically and generally any silicon-containing materials.
Download, read, and fully understand the risks and precautions associated with
this substance before using.
Those using Hydrofluoric Acid should have available a ready supply of
Calgonate® Calcium Gluconate antidote gel in case of accidental exposure.
This Type II activator kit includes a 3-liter jug of Type II concentrate packed
in a 5-gallon screw top pail. At time of use, 3.3 gallons of water are added to
the pail to which the 3-liter jug of Type II activator is added. This will make
just over 4-gallons of immersion bath which is generally large enough to handle
most small parts. Immersion time generally ranges from 30 seconds to about 5
minutes in duration. When the process is complete, simply screw the lid on the
pail and store for future use.
Included with this kit is a tube of Calgonate® Calcium Gluconate antidote gel
for emergency use in case of skin contact.