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Thread: silicon spray?

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    silicon spray?

    What do you guys have to say about silicon spray? I know that it is not a substantial lube that will prevent friction. But what about spraying it on stanctions and on the linkage? Will it prevent moisture? Will it harm anything?

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    Sensible shoes. CastIron's Avatar
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    Harmless. Use it to hose down the cassette in a pinch. Also cleans up the frame nicely. Think WD that isn't bad for he rubber bits and what not. Mediocre (at best) chain lube though.
    Mike
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    Senior Member MudPie's Avatar
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    Quote Originally Posted by floatingchoner
    What do you guys have to say about silicon spray? I know that it is not a substantial lube that will prevent friction. But what about spraying it on stanctions and on the linkage? Will it prevent moisture? Will it harm anything?
    I doubt silicon spray would harm anything. A couple of pluses: it's cheap and is a dry film (won't attract dirt). It may not be good for fast moving parts like the chain, but is probably fine for lubing cables and pivots. I spray the bottom of my cleats with it, to help entry/exit into the pedals. I only have the aerosol can version and hate using it because it gets all over. I'd prefer if it had a drip type of container.

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    holyrollin' FlatTop's Avatar
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    If you repaint or do significant touchups to the bike, every trace of the silicone must be removed first. This goes for ArmorAll as well.

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    Senior Member va_cyclist's Avatar
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    I put a little on my Look cleats to stop plastic-on-plastic creaking noises. But it made them that much more slippery on floors & pavement.

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    I use it in moderation on the polished upper stanchions of my fork and on the shock. I figure it will lube the dust seals and shed dirt a little easier. I spray it liberally on my pedal seals and the cleat clamping mechanism. Helps shed dirt and provides some friction reduction. Silicon is very inert so it might help some in reducing corrosion.

    Al

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    Stv
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    As you already acknowledged, Silicone (spray) is not a suitable lube for a chain (metal to metal) applications. The Silicone molecule is not shear stable nor durable enough. However, in mixed "softer" applications such as plastics to plastics or plastics to metal and cable sheathing it can shine.
    Because of the fluid nature and the liquid carrier, Silicone sprays have good creeping capabilities that allows for the lube travel deep into otherwise difficult areas to reach.

    As a moisture protectant ????? you will get some water displacement capabilities with the surfactants in the carrier and some (RP) moisture protection also, depending on the formulation.

    Silicones are inert and by themselves will generally cause no compatibility issues with most rubbers or plastics. It's the petroleum distillates used as a carrier that may have issues, but I wouldn't worry about it, they are generally not as harsh as say, WD40. I use a Food Grade Silicone for cables. It goes without saying, don't get any Silicone on the brake pads or rim.
    Last edited by Stv; 09-27-05 at 08:34 AM.
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