3M 5200 Marine Adhesive Sealant – Permanent Waterproof Bond for Jack Plates

Ensure a rock-solid, watertight installation with 3M 5200 Marine Adhesive Sealant—the industry standard for permanent marine bonding and sealing. Designed to withstand harsh saltwater environments, heavy vibration, and extreme conditions, this high-strength polyurethane adhesive forms an incredibly durable, flexible seal that won’t crack or shrink over time. Perfect for installing jack plates, sealing mounting hardware, and protecting transom penetrations, 3M 5200 creates a long-lasting barrier against water intrusion—helping prevent rot, corrosion, and structural damage. Its slow-curing formula allows for precise application while delivering maximum bond strength once fully set. Whether you're mounting a new jack plate or reinforcing an existing setup, this sealant is a must-have for a professional-grade install. Key Features: Permanent, waterproof seal for marine applications Extremely strong, flexible bond that resists vibration Ideal for jack plate mounting bolts and transom sealing Resistant to saltwater, weather, and UV exposure Helps prevent leaks, corrosion, and wood rot Recommended Use: Apply during jack plate installation to seal all bolt holes and mounting surfaces for maximum durability and protection. Pro Tip: Purchase the Jack Plate Install Kit and save! The Install Kit pairs the proper mounting hardware and spacers to ensure a clean, secure, and long-lasting install.