Comment

Comment by Dr. Edward L. Olds III on October 9, 2011 at 8:40pm

Jesse
Hey, not to worry, we have all taken our turn! This is s great group and we really help each other.
Ed

Comment by Roger E Barnes on October 8, 2011 at 10:42am

Cortec would be another option  i think you could get it from Zenith, comes in a can thin it and brush it on.

apparently less money than other methods.

Comment by Kevin Bowman on October 8, 2011 at 5:42am

Jesse, I primed only the mating surfaces with zinc chromate (spray can) I think I used about 18 cans for my 750. I scuffed the surface with a scotch brite pad before priming. Zinc chromate is getting harder to find, I think they quit making it and everyone is selling what they have in stock yet, they have replaced it with Zinc phosphate or Zinc oxide primers. I have an unopened case (10 cans) of Zinc chromate (Green) I will sell for $50.00 + shipping if anyone is interested. Kevin

Comment by Joseph F. Truncale on October 6, 2011 at 8:50pm

Though I sprayed all interior surfaces with cans (zinc phosphate - I love the yellow green look), you'll have an easy time of it on the mating surfaces only.  And brushing it on means no overspray and a neater looking interior.

Bob's suggestion to do the entire gas tank compartment is wise, since water can enter around the gas filler.

Best,

Joe

 

Comment by Jesse Hartman on October 6, 2011 at 8:23pm

Thanks Bob. That is what I needed to hear. No need to spend extra money if I dont need to.

Comment by Bob McDonald on October 6, 2011 at 8:16pm

I used it in the 1 litre can, and thinned with Lacquer thinner. Buy 1 litre (= empty litre can) and mix with 1 litre of thinner to make 2 litres. This should do your CH750. It goes only between mating surfraced of aluminum or aluminum & steel. You can chromate the inside skins of the gas tank compartment in the wings, other than that you just adding weight. Thinned it drys fast and is applied with a paint brush. Nasty to your health to be spraying that stuff around ...brush works great and wrapped in a thinner soaked rag in a sealed plastic bag "zip-lock" the brush will last most of the plane. It takes 1/8th of a litre to do a single 1450 float and that is chromating everything internal and some stuff external.