ThreeBond 1206c Equivalent

doornail385

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Jul 21, 2024
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Texas
I need to pull apart the hydraulic cylinder assembly on my MX5400 and the service manual calls for TB1206C during assembly. I can't seem to find that anywhere. What's a good equivalent?
 

TheOldHokie

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That's showing it's for 1207B, is that similar enough? I would have expected something like 1206D be closer?
Three Bond does not list 1206 as a current oroduct. The 1200 series are all silicone RTVs of one sort or another. I doubt it much matters ad long as its resistant to hydraulic oil.

Dan
 

doornail385

New member
Jul 21, 2024
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Texas
Three Bond does not list 1206 as a current oroduct.
That kinda explains why I can find $200 tubes from Japan, but nothing reasonably priced or available in the US. I had a feeling it was discontinued or something like that.

The 1200 series are all silicone RTVs of one sort or another.
If that's the case, would Permatex Ultra Black be a close enough substitute? I have already have a new tube of that.

Also, thank you. I don't have much grasp on sealents and how to understand the specs I was able to find. Breaking it down as a silicone RTV helped a lot.
 

TheOldHokie

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L3901/LA525, B7200DT/B1630, G2160/RCK60, G2460/RCK60
Apr 6, 2021
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windyridgefarm.us
That kinda explains why I can find $200 tubes from Japan, but nothing reasonably priced or available in the US. I had a feeling it was discontinued or something like that.


If that's the case, would Permatex Ultra Black be a close enough substitute? I have already have a new tube of that.

Also, thank you. I don't have much grasp on sealents and how to understand the specs I was able to find. Breaking it down as a silicone RTV helped a lot.
Thats a tough question to answer. I would look at the data sheet for the Ultra and see if it matched the application

Dan
 

William1

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Jul 28, 2015
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I'd stay withe a ThreerBond 1207. About $25. The sad partis you use so little and the tube, once opened, like caulk, goes bad in time.
When using, less is more, just a tiny bead as it squishes. Perfect amount barely squeezes out the seams.