Ouch, I see Spruce doubled the price of their Alodine 1201

[briand]

Anyone know of a cheaper supply?

[bullojm1]

Around me a couple boating stores have it - although like everything else in boating, it is a rip off there too. You might try calling around - being in Grand Rapids, you might luck out.

Good Luck,

[az_gila]

Try your local DuPont auto paint supplier.....

gil in Tucson

[PJSeipel]

I bought the powder from Eldorado Chemical. 1 lb of the stuff will make 10 gallons or so. 5lbs will probably do 2 airplanes. Not sure what the prices are now, but 5lbs was about $100 when I bought mine.

Dorado Kote 1

[plaurence]

Originally Posted by PJSeipel

I bought the powder from Eldorado Chemical. 1 lb of the stuff will make 10 gallons or so. 5lbs will probably do 2 airplanes. Not sure what the prices are now, but 5lbs was about $100 when I bought mine.

Dorado Kote 1

Allied Plating in Miami has it for $187 for ten pounds. One can mix it to one pound per thirteen gallons. About a buck fifty per gallon.

Peter

[mikehoover]

If you have a Finishmaster locally, you can get DuPont 225S (surface prep) and DuPont 226S (equivalent to Alodine) without shipping costs. Find the nearest one at www.finishmaster.com. Hope this helps.

Mike

[briand]

I already called them. You can't mix the dupont with henkel 1201 (which is what I have left over from the Emp.) and the Dupont is a 1 to 1 mix so you only get 2 gals. as opposed to the henkel (which is a 2 to 1) where you end up with 3 gals.

[az_gila]

Why mix?

Just use one up, and then switch.

The acid step and the alodine (conversion) steps are independent and do not need to be a "matched set" of chemicals. There is a wash step between the two...

gil in Tucson

[briand]

Originally Posted by az_gila

Why mix?

Just use one up, and then switch.

gil in Tucson

I need enough to dip my parts, I don't like the brush method.

[az_gila]

Try a small test case with the DuPont 225S at 2 to 1. If the color changes, it's OK.

DuPont's data sheet talks about no dilution and "direct application" (brushing on) - they don't mention the immersion bath method.

http://www.performancecoatings.dupon...19291_226S.pdf

The Henkel (Alodine 1201) is also no dilution for brushing, and the 2 to 1 is for an immersion bath.

http://www.aerospace.henkel.com/Imag...lodine1201.pdf

Note that the bath must be at 70F or warmer to work correctly at this dilution.

If you are doing large sheets, I like the use of a water misting bottle (an all-plastic one from the drug store) and just spray it on undiluted. Small parts can then be done in something like a plastic shoe storage box, filled to an inch deep or so.
{An idea from the old Matronics list... ..}

good luck ......gil in Tucson