jip Posted May 22, 2014 Share #1 Â Posted May 22, 2014 Advertisement (gone after registration) Hello guys, Â I've got this question, when you buy a summarit or R lens new the rubber on the focussing ring is usually black-black... but after a while it usually turns greyish at some parts... Â Now my question is is there some 'product' that can give the rubber back its blackness. My idea is that it turns 'white/greyish' when it 'dries' out... or something... Â Now I really don't know nothing about rubber, or plastic rubbers. So please enlighten me! Â Thanks! Link to post Share on other sites More sharing options...
Advertisement Posted May 22, 2014 Posted May 22, 2014 Hi jip, Take a look here Rubber on Summarit and R lenses. I'm sure you'll find what you were looking for!
Paul J Posted May 22, 2014 Share #2 Â Posted May 22, 2014 Armour All - Armor All | Protecting your car inside and out Link to post Share on other sites More sharing options...
Ulrik Posted May 22, 2014 Share #3 Â Posted May 22, 2014 I use carefully applied silicone spray that is intended to care for car tyres. Do not let the stuff leak into the lens. Similar silicone oil products are available for the treatment of latex clothing. Â Ulrik Link to post Share on other sites More sharing options...
Fgcm Posted May 22, 2014 Share #4 Â Posted May 22, 2014 Or you brush rubber with an old toothbrush. It works Link to post Share on other sites More sharing options...
2wk Posted May 22, 2014 Share #5 Â Posted May 22, 2014 There is that car detail product called Back to Black. Might work...but I would go with the toothbrush fix first!! Link to post Share on other sites More sharing options...
250swb Posted May 22, 2014 Share #6 Â Posted May 22, 2014 Â Now my question is is there some 'product' that can give the rubber back its blackness. My idea is that it turns 'white/greyish' when it 'dries' out... or something... Â Thanks! Â White-ish colouring on black rubber grips is usually from the mould release agent finally separating from the surface. So adding something on top isn't going to solve the problem. Instead remove it for good with some white spirit and this will return the rubber grip to black with the least build up of other 'products'. Â Steve Link to post Share on other sites More sharing options...
CrisRose Posted May 22, 2014 Share #7 Â Posted May 22, 2014 Advertisement (gone after registration) I used Autoglym's bumper care product that i use on my car's black exterior plastic. It's a gel, so very controllable and lasts a long time. Worked a charm on my 35-70/4. Link to post Share on other sites More sharing options...
jip Posted May 25, 2014 Author Share #8 Â Posted May 25, 2014 I already tried cleaning it with alcohol but when it dried the colour was the same 'whiteish' so I'm gonna try some cockpit kind of stuff. Link to post Share on other sites More sharing options...
250swb Posted May 26, 2014 Share #9 Â Posted May 26, 2014 In the replies so far nobody has suggested you use alcohol so no surprise it won't work. You need a petroleum based product, I previously suggested white spirit, but if you don't have some nearby then naphtha (lighter fuel), or turpentine are similar. Also some of the 'back to black' type products are petroleum based so may get the white off, but some may just add another layer of crud. Â Steve Link to post Share on other sites More sharing options...
bephoto Posted May 27, 2014 Share #10 Â Posted May 27, 2014 I have the same problem with a 28-90 all grip parts are grey. a friend of mine recommended Zippo fuel. haven't tried it yet though. Link to post Share on other sites More sharing options...
tobey bilek Posted May 31, 2014 Share #11 Â Posted May 31, 2014 MacGuires rubber and vinyl from the auto store. Part of the problem is rubber deteriorates from the ozone in the air. This slows or stops that. Â If you clean with spirits, definitely recoat. Â I used to use it on M2, 3 cameras which had real vulcanite (rubber) coating. Never got a chip or deterioration. Â Apply carefully and allow to dry 24 hours. Â All new lenses from Nikon get the treatment. Link to post Share on other sites More sharing options...
pico Posted May 31, 2014 Share #12 Â Posted May 31, 2014 MacGuires rubber and vinyl from the auto store. [... snip excellent advice ...] Â To help if you search online, it is spelled Meguiar's. Â Meguiar's : Car Care Products . Link to post Share on other sites More sharing options...
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