There are electrically conductive adhesives designed to carry current. Common types include:

• Silver-filled paint/paste (often called wire glue)
• Conductive epoxies for stronger bonds
• Carbon-based coatings with lower conductivity

They can help with low-current repairs: fixing broken PCB traces, bonding leads where soldering heat might damage parts, or restoring small contacts. Apply thinly on clean, dry pads and allow full cure for best performance. These products typically have higher resistance than solder and aren’t intended for high power. If you’re mounting a heatsink, choose a thermally conductive (often electrically insulating) adhesive instead. Check product pages for terms like “electrically conductive” and resistivity values to match your project’s needs.

Conductive glue can work as a solder alternative for delicate parts, quick field fixes, or flexible substrates where heat isn’t ideal.

1. Prep: Clean and dry the pads and leads.
2. Protect: Mask nearby areas to reduce accidental bridges.
3. Apply: Use a tiny amount; seat parts gently.
4. Cure: Let it set fully before testing or powering up.

Benefits include no hot tools and compatibility with plastics and films. Trade‑offs include higher electrical resistance and less mechanical strength than a solder joint. For higher current, vibration, or long‑term structural needs, traditional soldering is usually more robust. Review the adhesive’s resistivity and temperature rating, and verify continuity after curing to confirm a reliable connection.

Conductive glue shines on low-voltage, small-scale tasks where heat could cause damage.

• Repairing lifted or broken PCB traces and pads.
• Restoring worn contacts in remote controls and keypads.
• Building simple paper or fabric circuits for crafts and wearables.
• Bonding leads to sensors, LEDs, or foils without a soldering iron.
• Creating light EMI/RF shielding connections.

Results can vary with surface prep and curing, so clean, dry surfaces and thin layers typically help. These adhesives aren’t generally intended for mains power, high temperatures, or high currents. If you need to attach a heatsink, choose a thermally conductive adhesive that’s designed to move heat rather than carry electrical current.

Most general-purpose craft glues are electrically insulating, meaning they don’t carry current and can block a connection. You’ll also find thermally conductive adhesives for heatsinks; many of those are electrically insulating as well. If you need a bond that conducts electricity, look for products labeled “electrically conductive” and check the resistivity specification. If your goal is sealing or strain relief without conduction, seek “insulation” or “sealant” wording.

Always review the description and safety guidance, and avoid spreading adhesive across adjacent pads or traces to prevent unintended shorts. When possible, test a small, noncritical area first to confirm the behavior in your setup.

Match the adhesive to your repair by weighing a few key factors:

• Conductivity: Look for “electrically conductive” and compare resistivity values.
• Substrate: Rigid boards often pair well with epoxies; flexible circuits may benefit from more flexible pastes.
• Viscosity & tip: Finer tips and thicker pastes help with tiny pads and traces.
• Cure/working time: Choose a schedule that fits your workflow.
• Temperature rating: Ensure it tolerates your device’s heat.
• Mechanical needs: Consider vibration and strain at the joint.

Use search terms like “silver conductive glue,” “conductive epoxy,” or “solderless wire glue” to compare options, and review customer Q&As for real-world tips before you buy.