Best Polymer Sealant

3M Marine Adhesive Sealant Fast Cure 4200 (05260) – Semi-Permanent Flexible Adhesive Sealant for Boats and Marine Applications – White – 3 Ounces

CURES FAST – One-part adhesive sealant requires no mixing, typically cures in as little as 24 hours so you can get back on the water faster.
SEALS ABOVE AND BELOW WATERLINE – Ideal for joints, rub-rails, access plates and other areas shielded from the sun.
LONG LASTING FORMULA – Tough polyurethane polymer resists weathering and salt water.
TOUGH, FLEXIBLE BONDS – Stays very flexible, retaining strong bonds even during vibration, structural movement or shock.
ALLOWS DISASSEMBLY WITHOUT DAMAGE – Medium-strength, semi-permanent adhesive sealant allows bonded parts to be removed after prolonged use.

CURES FAST One-part adhesive sealant requires no mixing, typically cures in as little as 24 hours so you can get back on the water faster.
SEALS ABOVE AND BELOW WATERLINE – Ideal for joints, rub-rails, access plates and other areas shielded from the sun.
LONG LASTING FORMULA Tough polyurethane polymer resists weathering and salt water.
WON’T CRACK OR PEEL – Stays very flexible, retaining strong bonds even during vibration, structural movement or shock.
ALLOWS FOR DISASSEMBLY WITHOUT DAMAGE – Medium-strength, semi-permanent adhesive sealant allows for bonded parts to be removed after prolonged use.

FAST AND EASY TO USE – Fast-cure version of 3M Marine Adhesive Sealant 5200 is tack-free in 1-2 hours and typically cures within 48 hours.
USE WHAT THE PROS USE – Extremely strong adhesive sealant retains strength above or below waterline.
TOUGH, FLEXIBLE BONDS – Stays flexible, retaining strong bonds even during vibration, structural movement, swelling, shrinking or shock.
BONDS PERMANENTLY – Ideal for sealing, bonding and attaching on the interiors of boats or on exteriors where shielded from the sun.
LONG LASTING FORMULA – Tough polyurethane polymer resists weathering and salt water.

USE WHAT THE PROS USE – Extremely strong adhesive sealant retains strength above or below waterline.
BONDS PERMANENTLY – Ideal for sealing, bonding and attaching on the interiors of boats and RVs, or on exteriors below the waterline and where shielded from the sun.
LONG LASTING FORMULA – Tough polyurethane polymer resists weathering and salt water.
WON’T CRACK OR PEEL – Stays flexible, retaining strong bonds even during vibration, structural movement or shock.
EASY TO APPLY – Adhesive sealant requires no mixing, cures completely in 5-7 days.

USE WHAT THE PROS USE – Extremely strong adhesive sealant retains strength above or below waterline.
BONDS PERMANENTLY – Ideal for sealing, bonding and attaching on the interiors of boats and RVs, or on the exteriors below the waterline and where shielded from the sun.
LONG LASTING FORMULA – Tough polyurethane polymer resists weathering and salt water.
WON’T CRACK OR PEEL – Stays flexible, retaining strong bonds even during vibration, structural movement or shock.
EASY TO APPLY – Adhesive sealant requires no mixing, cures completely in 5-7 days.

CURES FAST – One-part adhesive sealant requires no mixing, typically cures within 48 hours so you can get back on the water faster.
USE WHAT THE PROS USE – Extremely strong adhesive sealant retains strength above or below waterline.
BONDS PERMANENTLY – Ideal for sealing, bonding and attaching on the interiors of boats and RVs, or on exteriors below the waterline and where shielded from the sun.
LONG LASTING FORMULA – Tough polyurethane polymer resists weathering and salt water.
WON’T CRACK OR PEEL – Stays flexible, retaining strong bonds even during vibration, structural movement or shock.

Advanced polymer formula siding sealant delivers excellent performance on vinyl, fiber cement, aluminum and wood siding.