FLEX SEAL® EPOXY
THE ULTIMATE LINE OF EXTREME BONDING SOLUTIONS.
Flex Seal® Epoxy products are engineered for extraordinary strength, durability, and versatility. Whether you need precision bonding with Flex Seal Epoxy Extreme Liquid or the shaping and gap-filling power of Flex Seal Epoxy Ultimate Putty, both formulas deliver permanent, waterproof repairs you can trust for your toughest projects.
The Ultimate in Extreme Bonding.
This two-part epoxy delivers extraordinary strength and unmatched versatility with its advanced multi-purpose formula. Just one gram of this powerful epoxy can lift and hold up to 8 tons*, forming an incredibly strong bond on virtually any material. From heavy-duty repairs to precision fixes, Flex Seal Extreme Liquid Epoxy creates a durable, permanent bond you can rely on for your toughest jobs.
- Extreme bonding strength of 6,000 PSI.
- Adheres to most surfaces.
- Forms a durable, waterproof barrier once cured.
- Fills gaps and cracks.
- Fast setting.
- Ideal for overhead and vertical applications.
- Designed for extreme conditions, both indoor and outdoor.
- Withstands temperatures up to 550°F once fully cured.
- Impact, chemical, and fuel resistant.
- Simple to mix and apply.
- Can be tooled, shaped, filed, sanded, tapped, drilled, and painted.
- Cures to a black finish.
- Available in a .85 fl oz syringe or in a twin tube package (.5 fl oz each).
Excellent for: Automotive, marine and plumbing repairs; home, garage and outdoor projects; furniture, appliance, tool and equipment repairs; DIY, crafts and hobbies; emergency fixes; heavy-duty and industrial use.
Works on: Metal, wood, PVC, tile, plastic, glass, ceramic, concrete, brick, and more.
Steel-Strong, Putty-Tough.
Flex Seal Ultimate Putty Epoxy combines the strength of steel with the versatility of putty. It delivers extraordinary strength, creating a bond that can lift and hold up to 4 tons*. Hand-mixable and easy to use, it’s perfect for shaping, molding, or filling gaps. From repairing rust and fixing leaks to patching holes and rebuilding parts, it bonds to virtually any surface. Designed for extreme conditions, it’s heat and chemical resistant, can be applied to wet surfaces, and even works underwater—providing the ultimate permanent bond.
- Ultimate strength for heavy-duty repairs and the toughest jobs.
- 100% waterproof – can be applied to wet surfaces and even works underwater.
- Easy to use – simple to mix and apply for quick, reliable repairs.
- Perfect for filling gaps, cracks, and holes.
- Highly durable – resistant to chemicals, fuel, and impacts.
- Fast setting – sets in 15 minutes.
- Weatherproof – designed for extreme indoor and outdoor conditions.
- Won’t run or drip – ideal for overhead, vertical, and hard-to-reach repairs.
- Heat resistant – withstands temperatures up to 350°F once fully cured.
- Workable finish – can be molded, shaped, filed, sanded, tapped, drilled, and painted.
- Cures to a dark gray finish.
Excellent for: Automotive, marine & plumbing repairs; home, garage & outdoor projects; furniture, appliance, tool & equipment repairs; DIY, crafts & hobbies; emergency fixes; heavy-duty & industrial use.
Bonds to: Metal, copper, plastics (PVC, ABS), wood, concrete, stone, brick, ceramic tile, fiberglass, and more.
WARNING: California Proposition 65 Notice.
*Lift and strength tests were conducted in controlled environments for demonstration purposes only. Attempting to replicate these tests is extremely dangerous and strongly discouraged. Do not attempt.
USAGE INSTRUCTIONS FOR SYRINGE:
MIXING STICK AND TRAY INCLUDED.
1. Prepare Surfaces: Protect your work area from spills. Clean and dry surfaces, removing dirt, grease, oil, and rust with sandpaper or a degreaser for the best bond. Do not use alcohol or any other cleaners that may leave a petroleum residue.
2. Dispense & Mix: Remove the "Snap and Save" cap from the syringe and save for later. Depress the plunger to dispense equal amounts of resin onto the included plastic tray or a clean, disposable surface. Mix until the color is uniform (approx. 1 minute).
3. Apply & Join: Apply the mixed epoxy to one surface, press parts firmly together, and clamp if necessary for heavy objects. Open work time is 25–45 minutes.
4. Cure: Sets in 3–6 hours at room temperature. Fully cures in 15–24 hours.
5. After Use: Pull the plunger back slightly, wipe the nozzle clean and replace the “Snap & Save” cap securely to prevent drying. Remove excess epoxy with a clean, dry cloth.
USAGE INSTRUCTIONS FOR TUBES:
MIXING STICK AND TRAY INCLUDED.
1. Prepare Surfaces: Protect your work area from spills. Clean and dry surfaces, removing dirt, grease, oil, and rust with sandpaper or a degreaser for the best bond. Do not use alcohol or any other cleaners that may leave a petroleum residue.
2. Dispense & Mix: Squeeze equal amounts of resin and hardener from each tube onto the included plastic tray or a clean, disposable surface. Mix thoroughly until the color is uniform (approx. 1 minute).
3. Apply & Join: Quickly apply the mixed epoxy to one surface, press parts firmly together, and clamp if necessary for heavy objects. Open work time is 25–45 minutes.
4. Cure: Sets in 3–6 hours at room temperature. Fully cures in 15–24 hours.
5. After Use: Wipe the tube nozzles clean and securely replace the caps to prevent drying. Remove excess epoxy with a clean, dry cloth and acetone or mineral spirits.
