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Old 03-25-2014, 10:05 PM
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Compund left red streaks in plastic

OK guys please help me save my marriage.. one of my daughters is having the first grandchild... my wife wanted to clean up the Parego Baby carriage that she has insisted we store for thirty years.... had a little yellowing on the plastic body and I tried various polishes and compounds including one with some red oxide, and of course it stained the white plastic red.

I have tried various solvents, gas, rust remover, and whatever else I could think of to remove the red stain...ANYONE seen this and know the solution ?

To add insult she read about using a hydrogen peroxide cream on plastic to remove the yellow and it worked like a charm.... except for the problem that me the genius husband created, HELP !!!!

Mike B

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Old 03-26-2014, 08:47 AM
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im not the expert here, but i would consider a very high grit wet sand with low pressure. basically remove the stained material.
edit: something in the 2k range maybe?

also, have you tried dawn?
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Old 03-26-2014, 09:09 AM
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i see you tried some stuff. but have you used this
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Old 03-26-2014, 10:17 AM
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I am thinking you need to use the white compound and polish the top surface off containing the red marks. But before you do that try the goo gone and other mild solvents in an inconspicuous place.

Brian
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Old 03-26-2014, 10:46 AM
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Quote:
Originally Posted by oldcpecdr View Post
OK guys please help me save my marriage.. one of my daughters is having the first grandchild... my wife wanted to clean up the Parego Baby carriage that she has insisted we store for thirty years.... had a little yellowing on the plastic body and I tried various polishes and compounds including one with some red oxide, and of course it stained the white plastic red.

I have tried various solvents, gas, rust remover, and whatever else I could think of to remove the red stain...ANYONE seen this and know the solution ?

To add insult she read about using a hydrogen peroxide cream on plastic to remove the yellow and it worked like a charm.... except for the problem that me the genius husband created, HELP !!!!

Mike B
Your marriage is fine. If she complains, just tell her 'feel free to do it yourself next time.'
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Old 03-26-2014, 10:23 PM
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You think you have troubles. My wife just found out the old rusty tailgate off the 53 has been under the *bed* for 7 months. I just hope she doesn't look to deep in the closet, she might find some glass off the 53 there.

Tells you how good she cleans, pointing that out didn't help either. Anyway, she went out tonight so the tailgate found its way under one of the kids beds. I am good for 7 months again.
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Old 03-30-2014, 06:06 AM
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when she finds out where you stashed the motor your really gonna be in deep doo doo.
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Old 03-30-2014, 08:19 AM
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The plastic headlights on my Aerostar had yellowed. and gotten foggy. I went to a junkyard, and picked up another pair, to do some polishing experimwnts on.

This is what I found out. You can polish plastic with paint compounds, but you must keep it cool. That means keep is wet, very low speeds, and light pressure. Did I mention keep it wet? That is the most important, KEEP IT WET!

I use a mixture of Dawn dishwashing detergent, some drops of it in an old spray bottle of water. The same liquid stuff you wife uses for washing dishes.

If you wife sees you taking her dishwashing soap, it may or may not distract her from looking under the bed for car parts.
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Old 03-30-2014, 09:56 AM
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Stain in plastic

Well, back to the original problem.... after 37 years I probably cant get her to leave...so I better keep working on the stains....

Amazingly the peroxide cream left out in the sunlight took ALL of the yellowing out... who woulda thought ?

And now am still stuck with the red stains created when I tried red compound originally.. I have tried all the solvents above and a few more. I wet sanded with 1500 this morning but it looks like the red oxide has gone into the plastic pores deeper than just the surace.

I am trying a poultice of Barkeepers Friend ( Oxalic acid is in there ) to see if it ight dissolve the iron oxide....

If that doesnt wokrk I'll sand with 600 or 800 and see if that gets through to clean plastic.

Thanks for the replies... Mike B
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Old 03-30-2014, 07:39 PM
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Just a random thought here, but I wonder if liquid white shoe polish would "dye" it back white?

Kelly
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Old 03-30-2014, 07:49 PM
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The plastic is most likely stained. I believe your only solution is to either sand it out as a last resort or find a plastic safe bleach. I think some type of bathroom cleaner with bleach would do the trick or possibly CLR, a calcium and rust cleaner.
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Old 03-31-2014, 08:59 PM
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Done

So...

DONT EVER USE RED compound on white plastic.... my words of advice....

two hours of sanding, had to go all the way down to 400 and then work my back to 2000 and then some WHITE compound and polish...

The baby buggy is fixed, grandma is happy....

Thanks for all the help...

Mike B
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