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Metal-filled epoxies offer superior strength and durability for a wide range of repairs and bonding applications. Whether you're mending broken metal parts or creating custom fixtures, selecting the right epoxy ensures a lasting, reliable bond. Understanding key features will help you achieve professional-grade results.
J-B Weld is The Original Cold-Weld two-part epoxy system that provides strong, lasting repairs to metal and multiple surfaces. Mixed at a ratio of 1:1, it forms a permanent bond and can be shaped, tapped, filed, sanded and drilled after curing. At room...
CURE AND SET TIME: J-B Weld Original High-Strength Syringe sets in 4-6 hours and cures in 15 hours.
STRENGTH: J-B Weld Original Syringe has tensile strength of 5020 PSI.
GREAT FOR: Great for household repairs, automotive, plumbing, marine, crafts and more.
DO IT YOURSELF: Big or small, you can DIY it with J-B Weld. Our heavy duty epoxy and adhesives repair & restore it right the first time. J-B Weld delivers superior performance, quality, and results for the World’s Strongest Bond.
J-B Weld Steelstik: A Hand Mixable Two Part Epoxy Putty Stick That Is Steel Reinforced & Non-Rusting To Quickly Repair Or Rebuild Anything Made Of Metal! J-B Weld Steelstik Is Certified By The Nsf And Is Safe For Contact With Potable Water
Cure And Set Time: After Kneading The Two Part Formula Together By Hand, Steelstik Takes 5 Minutes To Set And Cures In 1 Hour. J-B Weld Steelstik Set And Cure Color Is Dark Grey
Product Features And Strength: J-B Weld Steelstik Has Lap Shear Strength Of 900 Psi, Can Withstand Continuous Temperatures Up To 350F (176C ) And Intermittent Temperatures Of 450F (232C), And Is Chemical Resistant Against Petroleum, Hydraulic Fluids And...
Surface Applications: Iron & Stainless Steel, Copper & Brass, Aluminum & Bronze, Fiberglass And Plastic & Pvc
Dries clear: Our Gorilla Tough epoxy resin dries clear for a clean finish and incredibly durable hold; perfect for household and automotive repairs
5 minute epoxy: This epoxy resin kit in just one applicator has a 5 minute set time, plenty for repositioning and adjusting
Gap filling: Gorilla resin epoxy also acts as a gap filler, filling voids and bonding uneven or vertical surfaces
Water resistant: Our clear epoxy resin withstands moderate exposure to water for extra durability
Easy-to-use syringe: Gorilla Epoxy has separate barrels of epoxy resin and hardener to keep the epoxy from hardening; the syringes dispense evenly and include a cap for multiple uses
J-B WELD ORIGINAL PRO SIZE: Professional 5 OZ Tubes of the Original Cold Weld two-part epoxy system that was designed as an alternative to torch welding. J-B Weld Original provides strong, lasting repairs to multiple surfaces and creates a bond stronger...
CURE AND SET TIME: After mixing the tubes at a 1:1 ratio, it takes 4-6 hours to set and 15-24 hours to cure. Once cured J-B Weld Original can be tapped, filled, sanded, molded and drilled. J-B Weld Original set and cure color is dark grey.
VERSATILE AND DEPENDABLE: J-B Weld Original is steel reinforced, has a tensile strength of 5020 PSI and can withstand temperatures up to 550 degrees Fahrenheit (287 degrees Celsius. When fully cured, J-B Weld Original is waterproof and resistant to...
DO IT YOURSELF: Big or small, you can DIY it with J-B Weld. Our heavy duty epoxy and adhesives repair & restore it right the first time. J-B Weld delivers superior performance, quality, and results for the World’s Strongest Bond.
J-B WELD ORIGINAL: The Original Cold Weld two-part epoxy system that was designed as an alternative to torch welding. J-B Weld Original provides strong, lasting repairs to multiple surfaces and creates a bond stronger than steel. Perfect for DIY...
CURE AND SET TIME: After mixing the tubes at a 1:1 ratio, it takes 4-6 hours to set and 15-24 hours to cure. Once cured, J-B Weld Original can be tapped, filled, sanded, molded and drilled. J-B Weld Original’s set and cure color is dark grey.
VERSATILE & DEPENDABLE: J-B Weld Original is steel reinforced, has a tensile strength of 5020 PSI and can withstand temperatures up to 550 degrees Fahrenheit (287 degrees Celsius). When fully cured, J-B Weld Original is waterproof and resistant to...
DO IT YOURSELF: Big or small, you can DIY it with J-B Weld. Our heavy duty epoxy and adhesives repair & restore it right the first time. J-B Weld delivers superior performance, quality, and results for the World’s Strongest Bond.
Will set in 4-6 hours, and cure in 16-24 hours
Waterproof, petroleum, chemical, and acid resistant when fully cured
Can be drilled, tapped, machined, filed, sanded and painted
Stong and nontoxic after it has set and temperature resistant up to 500F
Extended Working Time: SLOW-CURE epoxy provides a generous 30-minute working window, allowing for careful positioning, alignment, and larger project applications.
Maximum Strength & Durability: Once fully cured, SLOW-CURE forms an exceptionally tough, impact-resistant bond - ideal for load-bearing or high-stress joints.
Multi-Surface Adhesion: Bonds securely to wood, fiberglass, metal, glass, ceramics, and most plastics, making it a versatile adhesive for hobby, DIY, and professional projects.
Excellent Gap-Filling Properties: Thicker formula is designed to fill gaps and bond uneven or porous surfaces with reliable hold and clarity.
Essential for Serious Builders: Perfect for boat repairs, structural applications, model building, and demanding craft projects - SLOW-CURE delivers lasting performance where strength matters most.
Ready-to-use liquid weld for rigid parts: Metal epoxy glue bonds aluminum, steel, stainless, and cast iron; also wood, ceramic, glass, rigid plastics, and concrete—ideal for auto repair, marine hardware, plumbing leak repair, and home fixes.
30‑minute working time, 24‑hour cure: True 1:1 mix lets you align, clamp, and build thickness. Cures to a dense, steel‑like mass up to 4680 PSI; repair is drillable, sandable, fileable, and paintable for clean finishes.
Built for real conditions: After full cure it’s waterproof, oil‑ and chemical‑resistant, and handles ‑85°F to 356°F—reliable in engine bays, outdoor equipment, shop use, boats, and garages.
Clean, controlled application: Pre‑filled dual syringe meters the ratio accurately; paste‑like, no‑drip formula stays put on vertical or overhead surfaces—great for brackets, housings, radiators (non‑pressurized), tools, patio furniture, and...
Strong repair tips + limits: Scuff/degrease, mix 1:1, spread 0.5–1 in beyond damage, clamp, and reinforce stress points with mesh/patch/bracket; allow 24 hrs before load or machining. Not for PE, PP, PTFE, silicone, rubber‑like or flexible parts...
Metal Repair Glue is a two component, heavy duty, high temperature resistant epoxy glue that comes in 1.76 oz. bottles and includes a set of pusher, spatula, and syringe with a 1:1 mix ratio. Metal Epoxy Repair Glue is a non irritating odor excellent cold...
Metal Repair Glue meets your needs in most usage scenarios at a fraction of the cost and guaranteed quality. It can be cured at room temperature, easy to use, with good abrasion resistance, heat resistance, corrosion resistance and impact resistance...
What can be used for excellent impact resistance and strength make if your car or boat has cracks or holes, then choose this epoxy resin welding adhesive is your best choice! It's also great for repairing/fastening radiators, water pipes, tanks, pools...
Why we recommend it With its wide range of applications, excellent properties and almost ultimate cost performance, this epoxy glue can meet your needs in most usage scenarios at a very low cost and with guaranteed good quality! It's your fixer upper.
How to use Use the pusher to push out the appropriate amount of glue on a flat surface, use the stirrer to mix it evenly (usually 5 minutes, if not, it will affect the bonding effect), then apply the mixture to the clean surface of the material to be...
J-B Weld Steelstik: A Hand Mixable Two Part Epoxy Putty Stick That Is Steel Reinforced & Non-Rusting To Quickly Repair Or Rebuild Anything Made Of Metal! J-B Weld Steelstik Is Certified By The NSF And Safe For Contact With Potable Water.
Cure And Set Time: After Kneading The Two Part Formula Together By Hand, Steelstik Takes 5 Minutes To Set And Cures In 1 Hour. J-B Weld Steelstik Set And Cure Color Is Dark Grey.
Product Features And Strength: J-B Weld Steelstik Has a Tensile Strength of 4000 PSI, Can Withstand Continuous Temperatures Up To 350F (176C ) And Intermittent Temperatures Of 450F (232C), And Is Chemical Resistant Against Petroleum, Hydraulic Fluids And...
Surface Applications: Iron & Stainless Steel, Copper & Brass, Aluminum & Bronze, Fiberglass And Plastic & Pvc
DO IT YOURSELF: Big or small, you can DIY it with J-B Weld. Our heavy duty epoxy and adhesives repair & restore it right the first time. J-B Weld delivers superior performance, quality, and results for the World’s Strongest Bond.
J-B WELD KWIKWELD: A fast setting version of The Original Cold Weld two part epoxy system that provides strong, lasting repairs to multiple surfaces Perfect for DIY household, automotive, marine, craft repair and much more J-B Weld KwikWeld now comes in a...
CURE AND SET TIME: After mixing the two part formula with the included mixing tray and stir stick, KwikWeld takes 6 minutes to set and 4-6 hours to cure J-B Weld KwikWeld set and cure color is dark grey
STRENGTH: J-B Weld KwikWeld has tensile strength of 3127 PSI
DO IT YOURSELF: Big or small, you can DIY it with J-B Weld. Our heavy duty epoxy and adhesives repair & restore it right the first time. J-B Weld delivers superior performance, quality, and results for the World’s Strongest Bond.
This article is part of our complete guide Lighting — browse all our comparisons and buying guides.
Last update on 2026-07-16 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Metal Filled Epoxies
Understanding Metal-Filled Epoxies
Metal-filled epoxies are two-part adhesives that contain metallic particles, such as aluminum, steel, or bronze. These particles enhance the epoxy's strength, heat resistance, and conductivity compared to standard formulations. They are ideal for structural bonding, filling gaps, and repairing metal components where durability is paramount.
Key Features to Consider
When choosing a metal-filled epoxy, look for the type of metal filler, as this dictates performance. Aluminum-filled epoxies are lightweight and corrosion-resistant, suitable for automotive or aerospace applications. Steel-filled epoxies provide exceptional strength and are often used for heavy-duty repairs. Bronze-filled epoxies offer good wear resistance and can be machined or polished.
Application and Curing Time
Consider the intended use. Some epoxies are designed for rapid curing, offering quick fixes, while others have longer working times, allowing for precise placement and adjustments. Always check the product's recommended temperature range for application and curing. Proper surface preparation, including cleaning and abrading, is crucial for optimal adhesion.
Environmental Resistance
Evaluate the epoxy's resistance to chemicals, water, and temperature extremes. If the bonded item will be exposed to harsh conditions, choose an epoxy formulated for such environments. Many metal-filled epoxies offer excellent resistance to fuels, oils, solvents, and significant temperature fluctuations, making them versatile for demanding tasks.
Frequently Asked Questions
What is the difference between standard epoxy and metal-filled epoxy?
Standard epoxy is a polymer adhesive, while metal-filled epoxy incorporates metallic particles. These particles enhance strength, heat resistance, and durability, making the metal-filled version more suitable for heavy-duty applications and repairs on metal components.
Can metal-filled epoxy be used for electrical conductivity?
Some metal-filled epoxies, particularly those with conductive metal fillers like silver or copper, can be used for electrical conductivity. However, many common metal-filled epoxies are not electrically conductive, so it's important to check the product specifications if this is a requirement.
How do I prepare surfaces for metal-filled epoxy application?
Proper surface preparation is key for a strong bond. Surfaces should be clean, dry, and free from grease, oil, or contaminants. Lightly abrading the surfaces with sandpaper or a wire brush can improve adhesion by creating a rougher profile for the epoxy to grip.
What is the shelf life of metal-filled epoxy?
The shelf life of metal-filled epoxy typically ranges from one to two years when stored properly in a cool, dry place, away from direct sunlight. Always check the manufacturer's recommended storage conditions and expiration date on the packaging.
Can metal-filled epoxy be sanded or machined after curing?
Many metal-filled epoxies can be sanded, drilled, or machined after they have fully cured. This allows for shaping and finishing the repaired area to match the surrounding material. Check the product's specifications for machinability.
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