J-B Weld 50172 25mL MarineWeld Water & Oil Resistant Adhesive & Sealant Syringe

J-B Weld 50172 25mL MarineWeld Water & Oil Resistant Adhesive & Sealant Syringe – World’s Strongest Bond

J-B Weld MarineWeld (50172) is a two-part marine adhesive & sealant packaged in a dual-plunger syringe for accurate 1:1 mixing and clean application. Designed for boats and personal watercraft, it bonds and gap-fills on aluminum, steel, SMC/fiberglass, plastics/composites, and wood found across deck and hull assemblies. From the package specs, MarineWeld reaches handling strength in 5 minutes, cures in 1 hour, and dries white to blend with gelcoat and hardware bases. The cured adhesive is water and oil resistant, chemical and UV resistant, and can be sanded in about 1 hour for quick finishing. Rated to 2,350 PSI, it delivers dependable hold on deck hardware, trim pieces, and hull accessories where a fast turnaround is needed. A re-sealable no-waste cap helps keep the syringe ready between jobs, and the included tray and stir stick make small-batch mixing simple on the dock or in the shop.

J-B Weld 25mL WaterWeld Waterproof Adhesive & Sealant Syringe At a Glance

• 5-Minute Set / 1-Hour Cure: Fast staging and same-day service.
• 2,350 PSI Strength: Secure bonds for marine fittings and accessories.
• Dries White; Sand in 1 Hour: Clean appearance; easy finishing.
• Water, Oil, Chemical & UV Resistant: Built for marine environments.
• Bonds Stronger Than 3M™ 5200 (per package claim).
• Dual-Plunger 1:1 Syringe: Consistent mixes with less mess.
• Gap-Filling Formula: Seats hardware and seals seams.
• Re-Sealable No-Waste Cap: Helps prevent dry-out between uses.

Markets

• Marine Service & Boatyards: Deck hardware installs, hull and cabin accessories, quick seal/bond tasks.
• Personal Watercraft: Fairings, covers, and interior pieces on PWCs and jet boats.
• Trailer & Marine Accessories: Brackets, housings, and light assemblies exposed to splash.
• Industrial & OEM Assembly: SMC/fiberglass panels and coated metals in production or rework.
• Municipal & Facility Docks: Repairs to ladders, bumpers, and utility fixtures near water.
• RV & Specialty Vehicles: Fiberglass and aluminum panel bonding where a white cure is preferred.

Marine technicians and outfitters need a marine adhesive & sealant that bonds mixed materials and keeps projects moving. MarineWeld’s 5-minute set lets crews position hardware, trim, and accessories without long clamp times, and the 1-hour cure supports same-day launch or delivery. The syringe meters equal parts for reliable mixing on the dock, while the white cure and “sand in 1 hour” call-out help produce clean finishes around gelcoat and painted surfaces. With 2,350 PSI strength and resistance to water, oil, chemicals, and UV, this syringe handles deck hardware, hull accessories, and small structural fits on boats and PWCs—without stocking multiple products.

J-B Weld 50177 25mL WaterWeld Waterproof Adhesive & Sealant Syringe Features

• Specially Formulated Marine Adhesive & Sealant: Bonds aluminum, steel, SMC/fiberglass, plastics/composites, and wood.
• Fast Working Schedule: Sets in 5 minutes; cures in 1 hour; sandable at cure.
• Durable, White Cure: Blends with marine finishes; supports neat hardware installs.
• Environmental Resistance: Water, oil, chemical, and UV resistant for marine duty.
• Gap-Filling Behavior: Useful for bedding hardware and sealing seams.
• User-Friendly Packaging: Dual-plunger syringe with re-sealable cap, mixing tray, and stir stick.

J-B Weld 50177 25mL WaterWeld Waterproof Adhesive & Sealant Syringe Includes

• (1) 25 mL dual-plunger MarineWeld syringe
• (1) Mixing tray
• (1) Stir stick
• (1) Re-sealable no-waste cap

J-B Weld 50177 25mL WaterWeld Waterproof Adhesive & Sealant Syringe Specifications

• Type: Two-part marine adhesive & sealant (syringe)
• Mix Ratio: 1:1 (resin:hardener)
• Volume: 25 mL (0.85 fl oz)
• Tensile Strength: 2,350 PSI
• Set Time: 5 minutes
• Cure Time: 1 hour
• Dry Color: White
• Finish Work: Sandable at full cure
• Resistances: Water, oil, chemicals, UV
• Compatible Materials: (5) Aluminum; Metal/Steel; SMC/Fiberglass; Plastic/Composite; Wood
• Typical Marine Uses (per packaging): Boats and personal watercraft; deck & hull accessories; housings & blocks; engine/galley parts; fasteners and small hardware
• UPC: 043425501721
• Country of Origin: USA

Why Customers Select the J-B Weld 25mL WaterWeld Waterproof Adhesive & Sealant Syringe

Installers choose MarineWeld when they need a quick, reliable marine adhesive that also acts as a marine sealant. The syringe gives accurate 1:1 dispensing, and a 5-minute set locks parts in place while the white cure blends with gelcoat and hardware bedding. Being sandable in about an hour shortens finishing steps on deck cleats, rails, and hull trim. Crews working on boats and personal watercraft appreciate the water, oil, chemical, and UV resistance, which holds up from dock to open water. With 2,350 PSI strength and gap-filling ability, MarineWeld secures deck and hull accessories, small housings, and mixed-material pieces efficiently—ideal for service yards, dealers, and DIY boat owners.