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rubber deterioration


 
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Ellis Kinney
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Joined: 09 Apr 2011
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PostPosted: Sat Feb 16, 2019 6:33 am    Post subject: rubber deterioration Reply to specific post Reply with quote

I have just finished installing new brakes on a Farmall SMTA. I bought new rubber boots to keep dirt from getting into the new brakes. I replaced these boots about 4 years ago and they were already rotten. What can I put on the new ones to keep them from rotting? The tractor does not sit outside. Thanks, Ellis
 
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tractorsam
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Joined: 19 Jul 2006
Posts: 1348
Location: Nova Scotia, Canada

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PostPosted: Sat Feb 16, 2019 6:37 am    Post subject: Re: rubber deterioration Reply to specific post Reply with quote

This will sound really weird but I?ve experienced exactly the same rubber deterioration issue as you although most of my stuff is outside. I?ve had a couple of pieces that got painted though and they seem to be holding up really well. So I?m going to try painting any new rubber parts I put on. Sam
 
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Janicholson
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Joined: 30 Jan 2004
Posts: 31007
Location: St. Cloud, MN

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PostPosted: Sat Feb 16, 2019 7:09 am    Post subject: Re: rubber deterioration Reply to specific post Reply with quote

Waxing them with a paraffin based wax prevents the rubber double carbon bonds from ozone in the air. If you weld in the same indoor location the ozone will be extreme. Jim
 
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Steve@Advance
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Joined: 12 Nov 2013
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PostPosted: Sat Feb 16, 2019 9:43 am    Post subject: Re: rubber deterioration Reply to specific post Reply with quote

Something is going on within the rubber industry. I've experienced the same thing, rubber products across the line having very short life expectancy.

Look at tires, expiration dates, sell by dates. They used to last for many, many years, now they start cracking in a couple years.

I recently bought a set of torch hoses. They were gone in 2 years! The ones they replaced were probably 30-40 years old!

Trouble is, no way to tell, even when looking at the product, if it will hold up.
 
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Ellis Kinney
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PostPosted: Sat Feb 16, 2019 11:55 am    Post subject: Re: rubber deterioration Reply to specific post Reply with quote

I bought a pair of rubber buckle up boots to go over my work boots and they didn't even last one winter. Ellis
 
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rustyfarmall
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Joined: 07 Feb 2003
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PostPosted: Sat Feb 16, 2019 1:18 pm    Post subject: Re: rubber deterioration Reply to specific post Reply with quote

CVPost-Steve@Advance wrote:
(quoted from post at 10:43:09 02/16/19) Something is going on within the rubber industry. I've experienced the same thing, rubber products across the line having very short life expectancy.

Look at tires, expiration dates, sell by dates. They used to last for many, many years, now they start cracking in a couple years.

I recently bought a set of torch hoses. They were gone in 2 years! The ones they replaced were probably 30-40 years old!

Trouble is, no way to tell, even when looking at the product, if it will hold up.


"Made in China"
 
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steve706
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Joined: 20 Feb 2010
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PostPosted: Sat Feb 16, 2019 3:35 pm    Post subject: Re: rubber deterioration Reply to specific post Reply with quote

Dow Corning 4 electrical insulating compound (DC 4) works really well on rubber, we use it on rubber aircraft seals and it keeps them in excellent condition as it slows the breakdown caused by ozone, only drawback is that as it?s greasy, it collects dust.
For larger rubber surfaces a product called Pbs Boot Sealant by Jet Stream Aviation Products works extremely well as it?s designed to restore and preserve leading edge de-icing boots on aircraft. The stuff also works well on old tractor steering wheels bringing them back from being dull and worn to being a nice smooth shiny black.
 
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