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John Deere Tractors Discussion Forum
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Prevent Sandblast Hood Lens Fogging?

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John T

02-01-2005 16:47:41




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I went to Henrys today to sand blast the Factory JD Round Spoke Rear Wheels I got to use on my 10 Spline Unstyled B. Anywho, he has a respirator deal that covers the nose n mouth with a tube we stick down our coveralls to breathe and a hood n lens we place over our head n shoulders so we dont die. BUTTTTT TTT the freakin lens kept fogging up on the inside on me n Henry claimed my breath was escaping out the respirator n that was causing the lens to fog grrrrr rrrrr rrrrr . I asked a redneck buddy of mine about it n he told me to put some vinegar or something else (forget already what he said n he just left lol maybe it was alcohol???) on the lens which I figure will prevent my hot moist breath from condensing on the cold outside warm inside lens, but wondered what other tips you gents could offer to stop that lens foggin problem??? I guess Henrys right ?? that my breath escaping was the major cause, but I kept that darn cover on as tight as I could ..... ... I hate to sandblast anyway, we got the wheels done so maybe I dont have to do that no more I hope lol.

God Bless yall (PS I posted this on both boards)

John T

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JDBert

02-03-2005 06:55:35




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 Re: Prevent Sandblast Hood Lens Fogging? in reply to John T, 02-01-2005 16:47:41  
Where I used to work, we had a detroit powered aircompressor. We took the muffler and basically added another wall around it with a air chuck for the air supply to the hood. this way in the winter our air supply would get pumped to the muffler get heated go to a filter system and then to the hood. That was nice you always had a warm hood and no fogging. In the summer it got pumped straight to the filter and then to the hood. I always joked that in the summer we needed to set up a A/C system but that never happened. You might wanna check with some of the snowmobile venders, I remember we used to have a "wax" like stick that you put on your shield and glasses and then cleaned them back off and that provided a no fog senario.

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Clooney

02-01-2005 17:35:21




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 Re: Prevent Sandblast Hood Lens Fogging? in reply to John T, 02-01-2005 16:47:41  
John, I use a fresh air supply so don’t have a lens fogging problem while sandblasting.. As far a good anti fog additive? I do a fair amount of motorcycle riding in cold weather & to keep the wind on my face to a minimum I wear a full face helmet,, those tend to fog up rather easily in the sub 20° mornings.. I have tried many commercial anti-fog products & even the old stand by of rubbing a potato on the lens & so far the absolute best I have found is to use & rub in a foaming type shaving cream… Gilette Foamy seems to work good..

Maybe you could try holding your breath & only breathe when the sun is shinning (just kidding).. Be careful that you don’t breathe that sand (silica) dust as it is extremely bad for you..

Clooney

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jhill

02-01-2005 20:26:58




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 Re: Prevent Sandblast Hood Lens Fogging? in reply to Clooney , 02-01-2005 17:35:21  
Have you tried one of the dual lens snowmobile face shields? They are made like a thermopane window. I do alot of snowmobiling and was about to quit because I was always fogged up. I got one of the dual lens jobs and I have't fogged up in 6 or 7 yrs.

Jerry



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J Clooney

02-02-2005 03:20:17




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 Re: Prevent Sandblast Hood Lens Fogging? in reply to jhill, 02-01-2005 20:26:58  
Jhill, yes, I have tried a dual lens system.. In fact my Nolan came with just such a inner/outer antifogging lens.. It sort of worked but gave me double vision with oncoming headlights or riding into the low afternoon sun.. If it’s not too cold out I just crack the visor lens a notch or two as that does a pretty good job of flowing air over the inner surfaces. On those colder high humidity days the shaving cream seems to work the best.. Actually there is a breath deflector that goes into it also but I don’t like that thing either as it gets kind nasty when used for a while. For some reason snowmobiles don’t seem to fog a helmet up as bad as motorcycles,, they must funnel more engine heat up behind the windshield, or have larger windshields.. I have ridden a M/C through some early morning fog that has left a ¼” of ice on the outside of the helmet.. I usually ride a couple of times a week no matter how cold right up to the first use of road salt (or icy roads),, then park it until the spring rains dilute the salt on the roads.. I can handle the cold but not the clean-up from road salt use.. Probably should just take the truck on cold days but there is just something about those 2-cylinder pipes that starts the morning off great..

Clooney

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RalphinWI

02-01-2005 17:26:52




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 Re: Prevent Sandblast Hood Lens Fogging? in reply to John T, 02-01-2005 16:47:41  
I had a professional do some blasting for me. I can't vouch for the accuracy, but I think he said he took a feed off from the compressor for beathing and cooling under the "tent" that he wears.



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Pete/ME

02-02-2005 03:10:32




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 Re: Prevent Sandblast Hood Lens Fogging? in reply to RalphinWI, 02-01-2005 17:26:52  
Please DO NOT use compressed air from a shop compressor to breath. The greatest danger is carbon monoxide (odorless and tastless). Also the compressor lubricants will find their way into the line. This stuff can end up killing you if you breath enough of it.



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