Is metal-ready REALLY necessary? [Archive] - Chevelle Tech

: Is metal-ready REALLY necessary?


gasoline_fiend
Jun 19th, 01, 10:17 PM
Ok, I sandblasted a couple parts and put two coats of black POR15 on without using Metal Ready. They've sat for two days drying/curing. I got antsy and "tested" it's durability http://www.chevelles.com/forum/rolleyes.gif And it scratched off. Not major flake-age, but the surface was compromised. http://www.chevelles.com/forum/biggrin.gif

Have I not given it enough cure time? Is the metal ready that important? They came straight from being blasted, wiped off then coated. Now, I did have to TRY to get it to scratch. So, yes I know then that I SHOULDN'T try to.

It seems pretty tough, and doesn't get surface scratches from a fingernail or the like. Guess I just expected it to be impervious to any and every thing.

Am I crazy or just impatient? Your experiences welcomed.

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Eric Taylor
72 Malibu 350

jerryr
Jun 20th, 01, 4:52 AM
I think the Metal-Ready is necessary. I first bought the POR-15 without the Metal Ready and quickly ordered some. I tried the POR on some brand new pieces and just like you it would not adhere. Once I received the Metal Ready, I used it per the directions (Keep wet for 15-20 min) and then completely rinse. It will leave a "white film" if you do not remove it all. I had much better results AFTER using the Metal-Ready.

my .02 http://www.chevelles.com/forum/wink.gif

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JR TC #1098
My 69 Convertible (http://www.erols.com/ruther/69conv)

My 2001 Z28 (http://www.erols.com/ruther/z28_5.jpg)

dreinecke
Jun 20th, 01, 7:59 AM
Eric,

I had the same problems. However, mine seemed to be from not properly washing off the Metal Ready. This time I made sure it wasn't chalky, and then coated it. Seems to be tough as nails.

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David Reinecke - aka - FINE 68
1968 Chevelle 300 Sport Coupe Deluxe
www.geocities.com/jdreinecke (http://www.geocities.com/jdreinecke)

Randy Mosier
Jun 20th, 01, 2:39 PM
I use the Metal Ready every time. Here's what I do to keep from using so much. I take a paper towel and hold it on the surface I'm painting. I wet the paper towel with Metal Ready and let it stick to the surface. Then all I have to do for the next 10 or 15 minutes is keep the paper towel moist. This keeps you from using so much of the Metal Ready. If you just spray it on directly, it dries off well before the 15 minutes is up, and you have to soak your part down again.

After I rinse it off, I let it dry ovdernight. Then I use a damp paper towel and wipe off any residue.

dreinecke
Jun 20th, 01, 9:38 PM
Randy,

Great tip! I'm doing the rest of my suspension parts tomorrow night, so I'll try your suggestion.

Thanks!

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David Reinecke - aka - FINE 68
1968 Chevelle 300 Sport Coupe Deluxe
www.geocities.com/jdreinecke (http://www.geocities.com/jdreinecke)