Description
Product Overview
The J-B Weld 25ml Epoxy Syringe (Model 50165) is a two‑part, steel‑reinforced epoxy designed for fast, high‑strength repairs. Packaged in a convenient syringe, it delivers a medium‑viscosity mix that sets in four hours and achieves a tensile strength of 5,020 psi. Its heat‑resistant and waterproof properties make it suitable for a wide range of materials, including brick, ceramic, concrete, metal, and stone.
Usage
This epoxy excels in both indoor and outdoor repair projects. Whether you are fixing a cracked metal pipe, restoring a concrete countertop, or patching a ceramic tile, the precise syringe applicator ensures controlled placement. Ideal for DIY homeowners, contractors, and maintenance professionals who need a reliable, quick‑setting solution for structural and aesthetic repairs.

Why Choose Us
J-B Weld is a trusted brand known for industrial‑grade adhesives. Our epoxy syringe combines steel reinforcement with a heat‑resistant resin, delivering unmatched durability. Backed by a one‑year manufacturer warranty and praised by over 1,700 customers with a 4.7‑star rating, you can rely on consistent performance and quality assurance.
Key Features
- Steel‑reinforced epoxy for superior strength and durability
- Heat‑resistant and waterproof, suitable for harsh environments
- Fast 4‑hour cure time with medium viscosity for easy application
- Versatile compatibility with brick, metal, concrete, stone, and ceramic
- Convenient 25 ml syringe packaging for precise, mess‑free use
FAQ
How long does the epoxy take to fully cure?
The epoxy reaches full strength in approximately four hours at room temperature.
Can I use this epoxy on outdoor surfaces?
Yes, the formula is waterproof and heat‑resistant, making it ideal for outdoor repairs.
What is the recommended surface preparation?
Clean the area thoroughly, remove any loose material, and lightly sand for best adhesion.
Is the syringe reusable?
No, each syringe is a single‑use package designed for one repair job.
Does the epoxy shrink after curing?
The steel reinforcement minimizes shrinkage, ensuring a stable, long‑lasting bond.




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