All,
A non-volatile approach is to start with TSP or a TSP substitute. Works
quite well, especially if you can let them soak for a while. A follow-up
with Simple Green or some other cleaner/degreaser and a toothbrush or some
other scrubber and a rinse with water will finish the job pretty well. I
also use a powerwasher for larger items or just to get started getting the
heavy stuff off.
If you really want your paint to stick, you need to use a metal prep
(phosphoric acid) and lastly, before applying paint, a paint prep
degreaser. You'll be surprised what comes off when using the prep degreaser
(use plain white paper towels or rags). Use rubber gloves with all of this
stuff too if you want to save your skin.
Be a aware the TSP will darken aluminum and and also loosen paint. Another
advantage of the TSP is it will minimize the bi... er, ahem... complaints
about the smell of chemicals.
Gerard
At 4:00 PM -0400 7/5/00, William M. Gilroy wrote:
>I painted my rear end (the cars' not my ass) this weekend. The hardest
>part was getting all the grease and rust off the sucker. I cleaned the
>rear with a putty knife, then used gunk and simple green, and scraped with
>a putty knife and scrubbed with a wire brush. It took a couple of hours
>but the thing is clean now.
>
>I removed the rust with an angle grinder and some wire brush attachments.
>I have one of those $20 Harbor Freight angle grinders. The thing works
>pretty well but is really noisy. When it breaks, and it will I will
>replace it with a real one, like a Dewalt. If you don't have an angle
>grinder get a cheap one, you will love it. Then upgrade when it won't
>do the job or breaks. I also bought 2 dewalt wire brush at $14 each.
>They are great. One is a cup and the other is twisted wire wheel. Don't
>catch the wire wheel in your shirt, it makes a mess.
>
>I then preped the axle with a rust converted and primed with an etching
>primer. I then painted it with POR-13 (15?) chassis paint (not the paint
>over rust stuff). It looks good and I think that paint will be very tough.
>Only time will tell.
>
>I am still looking for a better way of degreasing parts. I think it is time
>I spring for either a parts washer or get a 5 gallon lid for all my old
>joint compound buckets. Not sure what would be the best way to handle
>large parts. Maybe a pressure washer would work, but I think I am to tight
>to spring for one. Degreasing old cars and parts is a RPITA. I need
>a better way to handle parts off the car, and the car itself. When you get
>everything clean, working on the car is much less of a mess.
>
>My thoughts for the day.
>
>Bill Gilroy
>77 Midget
>90 Shar-Pei
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