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post #1 of 7 Old 04-25-2010 Thread Starter
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Alternatives to butly tape for bedding tracks

Hi All...

I know many here will tell me to use butyl tape and I agree it has its uses, but I just prefer to use something else to bed tracks. I know it was my own mustake, but the last time I bedded my traveler with it, I used too much and it got into the ball bearings of the car. Now I'm just not comfortable with it on tracks.

What I would really be more comfortable with is a sealant that cures while remaining elastic, so it is no longer sticky. I also want practically no adhesive properites or at least very little.

Before it was discontinued I might have used 3M 101, even though it was stronger than I would have liked. Now I am looking at Silkaflex 291 LOT. It has an adhesive strength os 120 psi which is more than I want but I can't seem to find a non-silicon sealant with less strength (that is, that is not an adhesive). The 291 LOT is fairly elastic, at 700% and has a good working time.

I would appreciate comments on how well it stands up to UV, how hard it really is to remove and so on.

Also, suggestions for other products would be appreciated. Ideally something that comes in a small tube. All I can find is small tubes seems to be 4000, 5000 and LifeCaulk.

Thanks very much...

Jim

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post #2 of 7 Old 04-25-2010
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For the items I don't use butyl for I use Sikaflex 291 and find it works well.

Brian
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Originally Posted by mitiempo View Post
For the items I don't use butyl for I use Sikaflex 291 and find it works well.
Thanks Brian, have you ever tried to remove it?

Helios
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Clean up is easy with acetone or thinners. I've removed old bedding that looks like it could be 291 and have had no problems.

Brian
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Great, thanks! Another advantage - I found it for as little as $5.59 per tube! Most places are about $12.00 per tube. I was going to stock up at $5.59 but then I saw the warning that it has a short shelf life, so I guess I'll buy it as I need it. Hopefully the $5.59 stuff is not already expired!

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You will find that after opening it usually hardens in the cartridge after a short while, no matter how you seal it.

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Quote:
Originally Posted by mitiempo View Post
You will find that after opening it usually hardens in the cartridge after a short while, no matter how you seal it.
At about $6.00 per tube, that's fine. I recall 3M 101 being fairly expensive, I think > $20 per tube and that made me not want to use it. I'll still try to organize my work so the sealant projects are all done together, but for this price I'm much less concerned.

Helios
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