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White epoxy syringe on card, 25 ml, 0.85 oz, 3200 psi strength

J-B Weld

J-B Weld MarineWeld Epoxy Syringe 25 ml 50172

SKU CH-AH50-0J41X

A two-part marine epoxy syringe that cures to 3200 psi strength and resists saltwater, chemicals and oil

  • Size or dimensions0.85 oz
  • Cures as strong as steel at 3200 psi tensile strength
  • Water and weather-proof for permanent marine repairs
  • Resists saltwater, chemicals, oil and acids without degrading
  • 25 ml syringe delivers precise two-part epoxy mixing
  • White cure colour blends with fibreglass and gelcoat surfaces

Marine epoxy syringe for boat repair

The J-B Weld MarineWeld syringe delivers a two-part epoxy formulated for marine maintenance and repair. It bonds fiberglass, metal, wood and plastic in above and below waterline applications. The 25 ml format suits small fixes and touch-ups on recreational and commercial vessels.

3200 psi bond strength with chemical resistance

Cured adhesive reaches 3200 psi tensile strength and resists saltwater, oil, acids and common solvents. The white finish blends with gelcoat and paint. Large structural laminations or load-bearing hull seams exceed the practical capacity of a single syringe.

Room-temperature cure with no mixing tools

Components dispense through a static-mix nozzle for a uniform blend without separate containers. The epoxy sets in minutes and fully cures at ambient temperature. Exothermic heat stays low during normal use, and the cured line emits no odour or fumes.

How it compares

Measured against everything we stock in Painting Tools & Sprayers, at today’s prices. Recalculated every night.

Price $4.99
Cheaper than about 70% of the 640 comparable items (median $9.99).

Specifications

Product
Brand nameJ-B Weld
Size & build
Size or dimensions0.85 oz

Questions about this item

Will this 25 ml syringe bond to the aluminium hull fittings I already have on the boat?

Yes, the epoxy cures to 3200 psi and is impervious to saltwater, chemicals, oil and acids, so it forms a durable bond on aluminium and other marine metals.

How can I confirm the 50172 epoxy has cured properly after I apply it?

The mixed adhesive turns white when fully cured; once it reaches that solid white state and feels hard to the touch, the 3200 psi bond is active.

Does the carded 25 ml package include mixing nozzles or do I need to buy them separately?

The syringe dispenses equal parts resin and hardener automatically; no separate mixing nozzles are required — just squeeze, mix manually and apply.

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