[gc1111]

Originally Posted by Maine Sail

Please try to be more careful in what you say or type as some might actually believe what you say and ruin an expensive part. Please check your "facts" before you post them!

Overview of Life-Calk Caulk Sealant - White, 2.8 OZ.

From the WM Site

"Versitile adhesive sealantOne-part, thiokol-based polysulfide sealant cures to a positive waterproof seal. Resists oil, brine, gas, water and most chemicals. Bonds to wood, fiberglass, metal and glass. No priming required except on oily woods such as teak.

• Formulation: One-part polysulfide caulking/sealant
• Recommended Usage: Fiberglass, wood, metal, glass; above and below water
• Material Incompatibilities: Not recommended; glass to vinyl, ABS/Lexan, plastic hardware to fiberglass/wood
• Adhesion Rating: Tensile: 80 psi; ultimate elongation 200%
• Cure Time: Tack free: 24 hrs; complete cure: 10 to 20 days
• Cleanup: Life-Calk Solvent, Model 139592
• Removal: Mechanical remova"

I have used Lifecaulk since the 70's as a bedding compound on fiberglass (i.e. plastic) sailboats. It works and works well. A blanket condemnation of using it on plastic is inappropriate. If it dissolved plastic, my hull would have more holes than could be counted. Maybe you should read your own posts as you make them.