3M Company 5200 Fast Cure Polyether Adhesive Sealant Review

3M Company 5200 Fast Cure Polyether Adhesive Sealant

The 3M Fast Cure 5200 Polyether Adhesive Sealant provides a robust and watertight bond both above and below the waterline. The sealant cures into a durable and flexible adhesive, ideal for a range of applications including underwater thru-hull fittings and hull-to-deck joints. The 3M 5200 remains workable for four hours post-application and reaches full curing between 5-7 days.

Key Features

  • Primarily used in bedding hull-to-deck joints and other similar long-term applications
  • Renders a strong and flexible adhesive bond both above and below the waterline
  • Can bond and seal fiberglass decks to hulls and wood to fiberglass
  • Reacting chemically with moisture, it produces potent, flexible bonds
  • Forms watertight and weather-resistant seals on joints and boat hardware

Specifications

  • Formulation: One-part polyurethane adhesive/sealant
  • Recommended Usage: Suitable for permanent bonding both above and under water, offering high strength and flexibility
  • Material Incompatibilities: Not suitable for use with plastics such as ABS and Lexan
  • Cure Time: Tack-free within 48 hours; complete cure achieved in 5-7 days through a moisture-activated process
  • Cleanup: Cleanable with mineral spirits or kerosene
  • Removal: Requires a mechanical removal method
  • Tensile strength: 700psi

This high-performance adhesive sealant is capable of substantial tack-free curing within a 48-hour window, achieving complete cure within 5-7 days. Its curing process is not subject to shrinkage, the sealant maintains its flexibility and strength, creating a watertight seal above or below the waterline.-resistant seal.

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