[AT] haybine roller repair

Mon May 4 19:28:46 PDT 2020

Being sole source to the US military, Raychem was making billions providing the adhesives as well as their line of shrink sleeve tubing, transitions, boots, etc. They were the only on that could meet all the military requirements and became the only certified supplier. They were the only certified supplier for a lot of our foreign military partners as well.

Through the years plenty of other suppliers kept developing their product lines to compete, but none could come close. We spent an awful lot of time testing their product lines. About 5 years ago they started to get close and some of them developed bits and pieces that we could use. One major requirement was that their products had to be fully comparable with the Raychem product line since 99% of what it would be used with was the Raychem product line

It’s a very costly process to become certified as a US military supplier, takes a lot of testing. Even after you make it, you have to re-certify every five years with more expensive testing (one reason why military hammers are so expensive). Anybody who was trying to dethrone Raychem didn’t want to waste all that effort and expense, so they would make their product lines available for non-military use. I’m sure that there are plenty of products out there that would work almost as well as the Raychem products, unless you’re planning on going to a war. You’d have to compare their material data sheets to see how similar their products would be.

Carl

----- Original Message -----
From: John Hall <jtchall at nc.rr.com>
To: at at lists.antique-tractor.com
Sent: Mon, 04 May 2020 21:04:56 -0400 (EDT)
Subject: Re: [AT] haybine roller repair

Found something similar a guy recommended called Double Bubble Urethane. 
I may order some of it, not as pricey, comes in smaller packs, they have 
different formulations. I'll compare to the product you mentioned first.

John

On 5/4/2020 4:39 PM, szabelski at wildblue.net wrote:
> OK, looks like the material is now available commercially. Turns out they now have several competitors who have been cutting into their product line and military sales.
>
> The following are made by Raychem (TE Connectivity) who at one time was sole source to the US military because they were the only manufacturer who could qualify to meet all the nuclear, biological, and chemical agent requirements.
>
> S-1125    This is a two part mix that we used to use for sealing cables and filling in gaps and such. You get 5 packs, 10 ounce each, plus mixing cups and sticks for about $110.
>
> RT-555.   This is an adhesive tape that melts under high temp that we used for sealing cables. You get 25 feet for about $90.
>
> Like I said previously, expensive.
>
> Carl
> ----- Original Message -----
> From: John Hall <jtchall at nc.rr.com>
> To: Antique tractor email discussion group <at at lists.antique-tractor.com>
> Sent: Sun, 03 May 2020 22:16:04 -0400 (EDT)
> Subject: [AT] haybine roller repair
>
> Anyone here ever successfully repaired any rubber covered
> rollers--specifically ones on a hay conditioner? Seeing some cracks,
> loose areas, and even a chunk or two missing out of the ones on my New
> Holland haybine. The machine isn't worth sending them off to have
> recovered. Looking for any repair methods that actually work that I can
> do here. I've had things such as FlexSeal, bed liner paint, vulcanizing
> cement suggested. Wonder if the vulcanizing cement would be the best,
> especially on sealing up some cracks. McMaster carries some urethane
> casting compounds, wonder how that would work?
>
> If you have any ideas, toss them out there.
>
> Thanks,
> John Hall
>
>
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