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Nikon Monarch 8x42 (7430) - Sticky rubber armor

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Old Friday 6th September 2013, 19:04   #1
Dr.SamPoni
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Nikon Monarch 8x42 (7430) - Sticky rubber armor

Howdy
My 4 year old Nikon Monarch (Pre-dielectric, silver coated prism) has developed a sticky rubber armor problem. This binocular has mostly stayed in its case, and only once, about 2 years ago, did it get wet. By wet, I mean totally drenched, but it was thoroughly dried later in the day using paper towels.
Now for the past one year, whenever I pick it up, the armor feels kind of sticky. I would love to know if there is something I can do about it. I don't want to part with it because it is my first roof, it handles beautifully, has great eye placement and I love the nikon monarch logo on it :)
Suggestions please.
Thank you
Sam
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Old Saturday 7th September 2013, 07:18   #2
typo
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Sam.

I've had various plastic and rubber parts of tools that have developed a sticky coating over the years but nothing as delicate as binoculars. I usually just tried the various solvents I had in the garage until something worked. Always a delicate balance between cleaning and dissolving the parts so something to be approached with particular care. Various suggestions I've found on different sites range from masking the problem with talcum powder, scrubbing gently with a bicarbonate and water paste, and 70% isopropyl alcohol but with so many different plastics and plasticisers there is no universal answer. If all else fails, I've had success and a several disasters using gasoline.

David

Last edited by typo : Saturday 7th September 2013 at 07:23.
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Old Saturday 7th September 2013, 11:59   #3
RJM
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I've had this happen too with various items, most recently on my video head panhandle, but never a binocular rubber armor. No rhyme or reason to why or what that I have been able to figure out other than it seems to happen on items that have been stored for extended periods of time. Even more mysterious is that on some items, the stickiness went away on its own. I found that rubbing the affected area with warm, soapy water can somewhat mitigate but not eliminate the stickiness.
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Old Saturday 7th September 2013, 15:11   #4
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Dr. Sam,

Could be some type of mold growing on the rubber. You do live in a damp state with plenty of moisture.

If soap and water don't do the trick, try some of this stuff:

MOLD-AWAY

Mr. Brock
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Old Saturday 7th September 2013, 17:13   #5
ehrodz
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Have you asked if there is some warranty coverage from Nikon for this kind of problem? By the way I have a ten year old Monarch 8-42 that I also value dearly for some of the same reasons you mention.
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Old Saturday 7th September 2013, 18:07   #6
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If it was me I would use methylated spirit try it on a little area first . I have used it any times when other remedies not worked. H
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Old Saturday 7th September 2013, 22:13   #7
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Thanks for the responses folks.
The bins haven't seen high humidity conditions, I think it might be just the way the rubber ages? There is no sign of mold growth because I don't see any discoloration and the whole armor is sticky.
I haven't checked with Nikon if they cover it, something tells me they won't.
I am gonna try with some alcohol wipes and if that fails, soapy water.
What do you guys think of vinyl/rubber protectants used for vehicles? Armor all?
Sam
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Old Saturday 7th September 2013, 23:46   #8
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Quote:
Originally Posted by Dr.SamPoni View Post
What do you guys think of vinyl/rubber protectants used for vehicles? Armor all?
I use Armor All as preventative maintenance on all my bins and scopes. I've found that it removes the sticky from some new plastic materials, but I don't know if it will help with stickiness from deterioration.

--AP
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Old Sunday 8th September 2013, 02:18   #9
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I agree with giving them a clean-up with soap and water first.

Don't put Armorall on the armor, it will make it slick and slippery.
Not good for a rubber that is supposed to have some grip.

Jerry
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Old Sunday 8th September 2013, 14:50   #10
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Originally Posted by NDhunter View Post
Don't put Armorall on the armor, it will make it slick and slippery.
Maybe slippery right at first, but not slick in the sense of changing the actual texture or hardness. Just let them dry overnight, then rub them down with a cloth a bit. Anyway, a bit of silicone induced slippery might be just the ticket to neutralize the gummy feeling. Just got my 8x42 Ultravid back from Leica service and I note that they also use Armor All or something equivalent to it on bins before return shipping.

--AP
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Old Sunday 8th September 2013, 16:38   #11
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OK, so I cleaned the bins with 90% isopropanol, the stickiness has reduced by about 50% I would say. Now, thinking of trying the soap. Just wondering what kind of 'soapy water' should I use, soap or detergent? Hand soap, laundry or dish detergent? If this too fails, then I am trying a vehicular vinyl protectant.
Thanks
Sam
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Old Sunday 8th September 2013, 19:57   #12
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I have several rubber armored models and I've used AmorAll on them with good results. Just be aware that as Jerry noted it will initially be very slippery after the application. Obviously you don't want to spray AmorAll on the binocular but rather spray a little AmorAll on a rag then carefully wipe the binocular. I then wipe it down again with another clean dry rag to obviate the initial lubricity.

Steve
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Old Sunday 8th September 2013, 21:19   #13
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I've only used clear unscented liquid dishwashing soap.
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Old Monday 9th September 2013, 00:49   #14
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There are different types of armor on binoculars, and that does include both
smooth and textured, and the aim is to improve the tactile grasp to make the
binocular easy to use.

Armor All is first of all a vinyl protectant, originally designed years ago to
be used on automotive interiors, to help things from cracking and from sun damage.
That includes dashes and door panels. I have used it and have experience.
I agree with the best use some have found here, to preserve folddown eyecups, to keep
them flexible.

But as far as using this product on any binocular armor, I do say no, not at all.
It will just make them too slick, and you will wish you never put anything on.

Armor-all makes things oily and greasy, and for some of those that
have textured armor that do get worn in and get a patina, the oil
that you get from the hands with use is quite enough. You certainly don't
want to apply this to any binoculars with textured armor. I am in the camp
of just keeping them clean with soap and water.

I have had the orig. Nikon Monarch as the poster has mentioned, and I
am befuddled as to what would make them sticky.

Jerry
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Old Tuesday 10th September 2013, 16:25   #15
mikefreiberg
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Quote:
Originally Posted by Dr.SamPoni View Post
Howdy
My 4 year old Nikon Monarch (Pre-dielectric, silver coated prism) has developed a sticky rubber armor problem. This binocular has mostly stayed in its case, and only once, about 2 years ago, did it get wet. By wet, I mean totally drenched, but it was thoroughly dried later in the day using paper towels.
Now for the past one year, whenever I pick it up, the armor feels kind of sticky. I would love to know if there is something I can do about it. I don't want to part with it because it is my first roof, it handles beautifully, has great eye placement and I love the nikon monarch logo on it :)
Suggestions please.
Thank you
Sam
Hi Sam,

My suggestion is that you approach service and repair with this. This is the first time I have heard of this. Mold could be the issue. Check out the site and let me know if you have questions. Good luck!

http://www.nikonsportoptics.com/en/S...nd-Repair.page

All the best,
Mike Freiberg
Nikon Birding Market Specialist
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Old Tuesday 10th September 2013, 20:34   #16
Dr.SamPoni
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Sorry for not updating sooner. The stickiness of the bin armor dropped significantly one day after treating it with isopropanol. I really don't know what happened, I picked it up after putting it away in its case and the next day, it is almost like new! I can barely feel it stick anymore. Didn't even have to try the soap method. Now, I am befuddled!
Hope the problem doesn't resurface. Thanks for all the input folks.
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