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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.
Last edited by abrahamx; 08-13-2013 at 12:43 PM.