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Old 08-13-2013
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3m 4000 or 4200?

Which one is the stronger bond. They both claim medium strength. I am not quite sure what the difference is between the two?

Last edited by abrahamx; 08-13-2013 at 12:07 PM.
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Re: 3m 4000 or 42000?

4000 is even messier to use. 4000 has better resistance to UV used as a bedding then 4200 works better for me
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Re: 3m 4000 or 42000?

I'm bedding some hand rails and winch island and figured i'd go with the stronger of the two. From what I can gather the 4200 is the stronger although the chart lists them both at 300psi tensile strength. With 5200 at 700psi. 4000 has a slightly lower stretch. I would say 4000 for general sealing, 4200 (seal/bond) if you want some added strength, and 5200 (BOND/seal) if you need much strength and are not planning on removing.

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Re: 3m 4000 or 42000?

IMO the 4200 works the best to bed hardware. I don't like using 4000. 4000 is thinner. many here use butyl but I don't like it as the hardware keeps moving under load and the stuff keeps squeezing out and the bolts never stay tight.
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Re: 3m 4000 or 42000?

Quote:
Originally Posted by overbored View Post
IMO the 4200 works the best to bed hardware. I don't like using 4000. 4000 is thinner. many here use butyl but I don't like it as the hardware keeps moving under load and the stuff keeps squeezing out and the bolts never stay tight.
Butyl or butyl tape?
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