Originally Posted by owenssailor
I've used 5200 often on our boat. It is very difficult to remove. Lestoil is the only thing I've found that will soften it. 3M also has a 4200 product that is considered not permanent. It is only difficult to get apart as opposed to near impossible. I would think using a product meant for the job would be best.
Using the correct product will always give the best results for any given job. A lot of people are always going to "go cheap" and there's not much that can be done for them except read their posts where the fix didn't work.
As far as 3M 4200, I don't know if 3M has discontinued that. I used it to put in a couple of thru-hulls for air conditioners, but I started having an issue of buying it that had already cured and turned hard in the tube. 3M acknowledged the problem, but I never did hear what they did about it. 4600 is a very similar product and I've used it quite a bit without problems, including below-waterline applications.