How Do You Get Yellowed Plastic White Again
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| White Famicom Comparing |
Due to the increased traffic to this commodity and numerous emails I can no longer offer support or reply to comments/emails.This article is for educational purposes only. We cannot be held responsible for amercement to you lot or your equipment.
Why do plastics yellow?
Manufacturers add bromine to ABS plastic to act as flame retardant. Over time, those chemicals react to the plastic's basic polymers and turn yellow. Sunlight and Heat accelerate this procedure.
How is it Reversed?
The procedure uses peroxide and UV light (either a UVA bulb, or simple sunlight) to activate the reaction. This causes hydrogen to bond with bromine free radicals and restore the color.
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| Before & After Restoration |
Methods of Handling:
- Pure Hydrogen Peroxide with no additives. This is the easiest method and perfect for small items. The peroxide force ranges from 3% to 12%. Higher concentrations in a higher place %3 can only be purchased from Hair Salon stores. This is the simplest method IF the item can be completely submerged. Weaker 3% p eroxide requires longer application time.
- Hydrogen Peroxide Homemade GEL. This method has many names online: seaglow, sauce & retrobright. Recipes & more info available online. Honestly I dislike to complicated process.
- Hydrogen Peroxide ready made GEL. This method is perfect for large items. The peroxide gel volition stick to the plastic during application. "Cream Peroxide 40Vol" 12% Strength. Its found in hair salon stores. Simple, cheap & works. Note: Some versions of Cream contain unwanted bleaching agents that can have unwanted effects on the plastic. Exam your Cream before applying to your beloved particular. I have also noticed the same issue with retrobright recipes.
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| Earlier Cleaning |
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| Famicom with the common yellowed plastic. |
Pre Clean:
Use protective goggles and safety gloves. Stiff concentrations of oxi-clean will irritate your skin Place the mixture away from children or pets.
Be sure to remove all nonessential items from the plastic. Soaking newspaper decals and frail labels is risky. Add together 2 Tbsp of Oxi-Clean / Oxi Magic per gallon of warm h2o. Mix enough solution and submerge the plastic. Permit to soak for 15-30min, scrub stains with a soft toothbrush. Rinse completely afterward soaking. If plastics are non yellowed stop at this pace!
Peroxide Treatment:
Apply protective goggles and wearable safe gloves. Peroxide will irritate your peel and tin can crusade blindness! Place the mixture abroad from children or pets!
Be certain to remove all nonessential items from the plastic. This method is merely suitable for previously white or low-cal gray plastics. Colored plastics will have mixed results and impairment the surface color. Never care for paper decals and delicate labels. With the Famicom Panel below I covered the master logo with clear scotch tape and trimmed the edges. The Japanese arrow stickers were unaffected by the peroxide.
My Ingredients for this Tutorial:
- Hydrogen peroxide 12%. "Cream Peroxide 40Vol" Plant at hair salon stores.
No mixing or other ingredients needed. The cream version works similar a Gel and sticks to the plastic easily.
Use a brush and only coat the entire slice of plastic. Make certain to glaze all areas.
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| Apply evenly |
Once coated, seal the item in a large ziplock purse or large articulate garbage pocketbook. Sit the item exterior in direct sunlight. After 3-4 hours the particular should turn to its original color, rotate particular every hour. Rinse and repeat until desired color is obtained. DO not permit the foam to dry out! This will cause scars on the plastic surface. Avert hot areas such as black asphalt.
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| three-4 Hrs Full Sun |
Rinse item completely and remove all traces of peroxide from the plastic. For a consummate restoration apply a topcoat of Novus Plastic Polish #1 or 303 UV Protectant. These will restore the high gloss and protect the plastic from hereafter degradation.
I promise that yous observe this website useful and informative. Please feel gratis to get out your comments or suggestions below. Due to the increased traffic to this folio and numerous emails I can no longer offer support or respond to comments/emails for this procedure.
Source: http://www.retrofixes.com/2013/10/how-to-clean-whiten-yellowed-plastics.html
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