OzVMX Forum
Clubroom => Tech Talk => Topic started by: kdx Geoff on September 23, 2013, 05:48:57 pm
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To freshen up the number area of my side covers l want to remove the paint that's on there.
Is there an easy way to get the paint off without damaging the plastic so l can repaint it/put on fresh vinyl or should l just sand it down smooth and paint over the top of what's left ?
Thanks
Geoff
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Get them soda blasted
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Get them soda blasted
I got to do the same.
Does the soda blast dull the plastic?
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I've been told to use brake fluid. Bubbles the paint off with no effect to the plastic
Cheers
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There is an 'orange' based paint stripper (Bunnings) which is plastic and fibreglass safe. I have used it on both without any damage to the base material. Naturally you can not leave the stripper on for excessive time and do not let it dry.
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Brake fluid.
l should have remembered that :o
l think you're right Grahame, wrecks paint and wont worry the plastic......and its in the shed.
Thanks
Geoff
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Make sure you let us know how you go.
I have a number plate I need to do.
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Make sure you let us know how you go.
I have a number plate I need to do.
pictures to come
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There is an 'orange' based paint stripper (Bunnings) which is plastic and fibreglass safe. I have used it on both without any damage to the base material. Naturally you can leave the stripper on for excessive time and do not let it dry.
Use a citrus based product 3M produce it! Brake Fluid will weaken the plastic, you just wont see it, it will go brittle and snap.
If you want to bring them up like new, sand, heat and polish! i can put a detailed response on the process if you like?
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There is an 'orange' based paint stripper (Bunnings) which is plastic and fibreglass safe. I have used it on both without any damage to the base material. Naturally you can leave the stripper on for excessive time and do not let it dry.
Use a citrus based product 3M produce it! Brake Fluid will weaken the plastic, you just wont see it, it will go brittle and snap.
If you want to bring them up like new, sand, heat and polish! i can put a detailed response on the process if you like?
l have only got the brake fluid on the painted part of the cover, keeping my eye on it.
where does the heat come in ?
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Ok My Process is:
Never use any alcohol based or harsh strippers like brake fluid products on PVC (Plastic) it will eat it alive, hardens and shortens up the ageing process:) always use a water based product, like a citrus 3M organic based paint strip.
Better yet, don't paint plastic, it looks shit.
Restoration process: Depending on the gauges and decay of the PVC will depend on how you much time you spend on each process.
1. Using 400 grit sandpaper ( Dry), sand back until mat finish, smooth and all gauges are gone or relatively gone, so your happy with the finish (I use an electric hand sander) . You can get a plastic welding kit or filler if your keen, but if your going to go to that extent www.plasticrenovations.com and contact me i'll get you a quote for restoration.
2. Using the 400/200 grit, start the wet and dry process and keep working until all smoothed out and stats to get a gloss, LIGHTLY apply heat via heat gun small sections at a time (this makes the molecules in the PVC fire up and start to rejuvenate)
3. Buy a Novis 1,2,3 pack from American eBay, ($50 delivered to your door) or if you can find equivalent in Australia let me know, i'm yet to find it! and polish the hell out of it, repeat stages as required.
4. Purchase a really good quality car polish (Maguires) from Autobarn and polish until a high mirror shine:)
Its time consuming, but it's worth it in the end:) Happy Polishing:)
My suggestion is, restore and old shitty piece first, as if you make a mistake with the gun, you wont be in tears!!!!!!!!
You can use acetone to seal the inside of a tank, swish it around and with a few nuts, bolts and screws to loosen and shit caked on the walls:)
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"Bumper Stripper". Comes in aerosol can, washes off with water.
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"grease and wax" remover works pretty well also without affecting the plastic.
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Thanks Nada
I've washed off the brake fluid and will see what else l have in the shed tomorrow :)
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Thanks Nada
I've washed off the brake fluid and will see what else l have in the shed tomorrow :)
Cool cool:):) shoot me a line anytime you need some info:) I will put up some before and after shots of some of my creations also:)
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I used some American made EZoff oven cleaner on a plastic gas tank last month and it worked fine. Didn't hurt anything.
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spray on paint stripper
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paint stripper works ok.
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I just did some yz plastic with brush on stripper from supercheap...Worked well - Just gernied it off...
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spray on paint stripper
The chemicals in paint stripper will work into the PVC and SLOWLY weaken, and fade it! You might not notice it now, but you will in the not so distant future.
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Paint stripper is good on flexible polypropylene and polyethylene plastics, do not use it on the paintable ABS plastic. I don't know that brake fluid will work these days, it's been toned down so much you can spill it all over your car engine bay with no effect.
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Can I ask why you wouldn't just buy new ones?
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Can I ask why you wouldn't just buy new ones?
Yep reasonable question! The repo products like DC are good, but their not perfect. If your wanting to get the whole colour scheme back to original, the only way to get 100% is to use NOS or restored plastics.
For a full nut and bolt resto, restore the plastics. for racing the DC stuff is fine.
If i had some prepared stuff here in Oz, i would bring it up to Bulahdelah for you look at, but i'm still waiting for it to get back from the US and i have not finished my restored plastics yet! But, when i do, you can see and feel the difference:)
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l sanded the paint off....
No risk of chemical damage to the original side cover plastic. :)
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l sanded the paint off....
No risk of chemical damage to the original side cover plastic. :)
Ah man I thought there was a easy way!!!!
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If it's not OEM paint. Plastic paint stripper like Grunter215 and bazza said. Comes in an aerosol can and is designed for plastic, works great.