Removing Old Boatlife Sealant (Polysulfite)

[Chuck]

Folks,I have a job that involves removing old "boatlife" calking (polysulfite). Short of using a razor blade and scratching the gel coat, Is there a solvent that will remove it? The package says to use acetone if it hasn't cured but this stuff has been there for 10+ years.Thanks for your help and advice,/ChuckS/V WindsongsH23

 

[Gord May]

Polysulfide Solvents

See if you can find any of these products (oftyen used in Aviation & Tank Coating industries, etc):Cee-Bee “E-1058" (#23158) - A viscous, non-methylene chloride stripper for removal of polysulfide paint system and sealants. Cee-Bee “A-458" (#23055) - A viscous methylene chloride stripper for removal of polysulfide paint system and sealants.GenSolve “530-AG” (Aviation Grade) A chemical stripper designed to remove organic coatings and residues, polysulfide sealants, and many other polymers at low temperatures.Miller-Stephenson “MS-11" Stripping Agent will readily soften and strip most organic systems including epoxies and urethanes. I’m not sure about it’s effectiveness with sulfides.

 

[Stu Sauer]

Old Polysulfide Sealant

I was able to remove the remaining sealant when replacing hatches just by scraping it off with a dull paint scraper. You might also try a Dremel tool with a wire bush wheel and work slowly and carefully. I assume you will be re-applying new sealant over the same area anyway to re-bed the equipment.

 

[Steve Dion]

Release by Boatlife

Chuck:Just saw an ad for Boatlife Release."Adhesive & Sealant Remover ideal for removing cured silicone, polyurethane, and polysulfide. Removes tapes, labels, decals from Metal, Fiberglass and wood. Use while caulking for easy clean-up and for a perfect bead."Available in 1oz & 16 oz. spray bottles.Mention Offer GB0604 and Receive 15% off your order by calling 800/382-9706www.boatlife.com

 

[Chuck]

Thanks!

Thanks All!I'm plugging these holes and gel coating them because I'm putting a new type of boarding ladder on.The advice (and discount Steve!) are much appreciated./ChuckS/V WindsongsH23