Silicone spray on black plastics - BMW R1200GS Forum : R1200 GS Forums
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post #1 of 24 (permalink) Old 12-Nov-2016, 01:50 AM (326) Thread Starter
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Silicone spray on black plastics

Does anyone on the forum use silicone spray on the black plastics on their GSs?

If not, what else?
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post #2 of 24 (permalink) Old 14-Nov-2016, 06:34 PM (023)
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When I want to renew the look of the black plastic items I use some petroleum jelly. It makes the black bits look like new. I apply then wipe off any residue so that the part is dry to the touch. Been doing it for years. The "treatment" lasts a long time too, weeks to months. It seems to really protect.

There are those that will say that petroleum jelly "destroys" rubber, plastic, whatever. I did some research on that and the only thing I could find, other than repeating the claim, was a "study" from the early 1900s stating that it reacted poorly with the rubber of the time, they were testing. I found absolutely nothing since then. If there is a later study, I didn't find it. So, I figured, first...I am not using it on rubber. Second, these parts are pretty visible so I would easily see any deterioration. Third, even if deterioration occurred the parts wouldn't be that big a deal to replace.

It's cheap and easily available.
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post #3 of 24 (permalink) Old 14-Nov-2016, 07:26 PM (059)
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peanut butter

Quote:
Originally Posted by Dr. Strangelove View Post
(flame retardant donned)

When I want to renew the look of the black plastic items I use some petroleum jelly. It makes the black bits look like new. I apply then wipe off any residue so that the part is dry to the touch. Been doing it for years. The "treatment" lasts a long time too, weeks to months. It seems to really protect.

There are those that will say that petroleum jelly "destroys" rubber, plastic, whatever. I did some research on that and the only thing I could find, other than repeating the claim, was a "study" from the early 1900s stating that it reacted poorly with the rubber of the time, they were testing. I found absolutely nothing since then. If there is a later study, I didn't find it. So, I figured, first...I am not using it on rubber. Second, these parts are pretty visible so I would easily see any deterioration. Third, even if deterioration occurred the parts wouldn't be that big a deal to replace.

It's cheap and easily available.
A friend who details cars for a living says he uses smooth peanut butter. Rub it in, then polish it off.

Graham Day. Sydney Australia
2005 R1200GS 93,000km (Stolen)
2004 R1200GS. 88, 000 km
2007 R1200GS. 34000 km.
current bike. 2010 R1200GS. 45000 km
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post #4 of 24 (permalink) Old 14-Nov-2016, 07:47 PM (074)
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I use a product from Meguiar's called Natural Shine Protectant, but there are a range of products. I did use ArmorAll for years but this product seems to work better.

Years ago (many now I guess) plastics and synthetic rubbers and elastomers suffered over time when the plasticizers would break down (mostly from UV attack) and result in parts cracking, chalking or becoming brittle.
Keeping them protected with a good product helps, but the quality of the polymers used these days is generally much better. Having said this, it is very easy to see products (including motorcycle parts) that are still manufactured with lower cost and lower quality polymers that will still suffer degrading physical characteristics in surprisingly short periods of time.

Glass filled nylon and acetal parts are often the most conspicuous particularly where they are being used to replace what may have traditionally been a fabricated steel part or a cast alloy part, and BMW have had their experiences here too. I remember a friend purchased a brand new K75 and the main structural bracket holding the front assembly of gauges and lights etc. was an injection moulded part that had a nasty habit of breaking in service. Heat, UV, vibration and time conspire against parts that are not well designed for plastic.

Away from the more engineering components, I use the Protectant on my seat to maintain a soft and flexible material. Remember the "old days" when bike seats made from PVC would split and then the foam inside would soak up the first shower of rain and from that day on you would get a wet butt every time you sat on your bike. Made worse still by trying to apply duck tape which would at best provide a temporary solution, but ultimately it would squirm and then the residue of the adhesive would transfer onto your butt too.

So, although I tend not to keep my bikes as long these day, I still take care of the plastic and synthetic surfaces for the next owner to enjoy. And it makes the bike look like new.

Mark H
Sydney, Australia
2015 R1200GS Black Storm
2012 R1200R White
2010 R1200R Black
2007 F800ST
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post #5 of 24 (permalink) Old 14-Nov-2016, 09:26 PM (143)
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Quote:
Originally Posted by gdayjr View Post
A friend who details cars for a living says he uses smooth peanut butter. Rub it in, then polish it off.
That would likely be peanut oil doing the job. Point is, a simple product (pet jelly, peanut oil, prob coconut oil) can renew things like the battery cover, or the other black plastic bits should they become oxidized.
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post #6 of 24 (permalink) Old 15-Nov-2016, 03:35 PM (899)
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WD 40 is what I use instead of any of the silicone sprays, especially Armor All

'05 1200 GS
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post #7 of 24 (permalink) Old 15-Nov-2016, 08:32 PM (106)
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Your best solution to keeping your bags and plastics like new

Use Honda brand cleaner/polish. Spray it on, wipe it off. Great for windshields too - keeps the plastic looking like new.

As an alternative, use lemon Pledge spray. Same result as above, smells nice too :-)

I've used both for over five years on two bikes and both look like new. You won't be unhappy with the result!

Good luck!
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post #8 of 24 (permalink) Old 15-Nov-2016, 10:51 PM (202)
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I use this on pretty much everything

Especially lenses. Spray on wipe off.
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post #9 of 24 (permalink) Old 16-Nov-2016, 12:01 AM (251)
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Coconut oil

Before n after... Dunno what those white smudges are, but the a plexus won't shift or disguise them. Neither will WD...
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Last edited by PoppyGreg; 16-Nov-2016 at 12:07 AM (255).
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post #10 of 24 (permalink) Old 16-Nov-2016, 12:03 AM (252)
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After...

Second attempt
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