Re: [Amel Yacht Owners] Sealant for dodger windows?
Ryan,toggle quoted messageShow quoted text
Well I have used mineral spirits/paint thinner (for oil based paints, not urethanes) on Acrylics for 40 years on countless boats without any obvious negative effects but that is the only testing that I have done. I always tape to keep the worst of the caulking off. Scrap the bulk of the material off with something soft like the soft plastic spreaders used for applying bondo and then finish cleaning with rags and the paint thinner. Also, if you only clean up a small area at a time, your caulking will be easier to remove. Once you disturb the bead and spread it out thin, it cures much more quickly.
Bill R. is definitely right that if you use a lower strength silicone that the future removal will be much easier. My reasons for using the 3145 is because the caulking can last the life of the new plexiglass without leakage and I would rather fight with the removal aspect at the end than to deal with leaks and having to redo the caulking. There seems to always be a piper to pay! (grin) The 3145 btw is also non corrosive so the stainless screws fair a bit better than if you use the more common silicones with the acetic acid in them. I think that there are other non corrosive silicones with a lower strength than the 3145 out there but don’t know of any that are clear or white off hand. Perhaps others can help.
Best of luck with your project.