This stuff really works. It is mandatory
for making p-port rotor housings.

I made two test coupons out of 6061 T6 and bent them
after 24 hour cure. One was treated and one was not
treated. The JB Weld was thinned with a half teaspoon
of acetone per small tube package. The untreated aluminum
snapped apart with little or no force without bending the
coupon metal. I was able to bend the treated coupon no problem.
I'll run a shear test on the good  coupon later.

The West Systems preparation stuff is not alodine
as there is no colorization involved. I don't know
what it is but I think it is a caustic etch.

Merry Christmas.

Paul Lamar ...No rotor no motor.

Alodine is commonly referred to as "Conversion coating" or "Chromate
conversion".

The 860 Part B bottle label clearly states "Conversion coating"

The West System 860 MSDS shows that Part B contains "Chromic acid", which
IIRC is the key component of Alodine (Iridite).

The colorization associated with the alodine process is at least partly a
function of the strength of the solution, the aluminum alloy involved as
well as the length of time that it is exposed.  It may also be a function of
the temperature as well.  It has been so long ago that I did any alodining
that I've forgotten.

Regardless, the results are what counts.  Nice work!

Ron, Houston

Thanks for the education Ron. I stand corrected. Way back
the 60's we where making bonded aluminum chassis at Chaparral
race cars and we used a caustic etch.

Paul Lamar ...No rotor no motor.

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