★ 4.9★ Rated by 750+ Customers on Google

🚀 Startup India Recognized Company

🚚 Pan India Delivery via Trusted Courier Partners

🏬 Only Physical + Online Robotics Store in Pimpri

🎓 Trusted by Engineering Students, Makers & Innovators Across India

★ 4.9★ Rated by 750+ Customers on Google

🚀 Startup India Recognized Company

🚚 Pan India Delivery via Trusted Courier Partners

🏬 Only Physical + Online Robotics Store in Pimpri

🎓 Trusted by Engineering Students, Makers & Innovators Across India

KOOCU ZJ-18 Advanced Quality Soldering Paste Flux (50g) – High-Purity Non-Corrosive Welding Grease

Parameter	Detailed Specification
Brand	KOOCU
Model	ZJ-18
Weight	50 Grams
Flux Type	High-Purity Soldering Paste / Welding Grease
Ph Value	Neutral (Ph 7 ± 0.3)
Viscosity	High (150 Pa·s)
Application	Mobile, Laptop, PCB Repair, Electrical Wiring

Price

🚚 Ships within 24 Hours
📦 Pan India Delivery

₹ 84.75

(Tax included)

Barcode: 5599882

Product Description

Achieve superior soldering performance with the KOOCU ZJ-18 Advanced Quality Soldering Paste Flux. This 50g tin of high-purity welding grease is a versatile essential for any technician's workbench. Designed for both professional mobile repair and general electrical tasks, ZJ-18 excels at cleaning metal surfaces and preventing oxidation during the soldering process. At Robogears, we recommend this flux for its excellent "wetting" capability, which helps solder flow seamlessly into tight joints, ensuring a strong mechanical and electrical bond. Its Ph-neutral formula is safe for delicate circuitry, making it an ideal companion for repairing smartphones, laptops, and various consumer electronics at your Pimpri facility.

Detailed Key Features

High-Purity Composition: Formulated with high-quality chemical agents that ensure maximum cleaning of copper and tin surfaces for flawless solder adhesion.
Non-Corrosive Ph-Neutral Formula: With a neutral Ph value, this flux won't eat away at your PCB traces or component leads over time, ensuring long-term circuit reliability.
Excellent Wetting Properties: Significantly lowers the surface tension of molten solder, facilitating a smooth "beading" effect and preventing jagged or dry joints.
Minimal Residue: Leaves behind very little waste after soldering; the remaining film is non-conductive and transparent, maintaining a professional board appearance.
Wide Compatibility: Works exceptionally well with all types of leaded (60/40) and lead-free solder alloys, as well as various soldering iron tip geometries.

All Technical Details

Stability: High thermal stability prevents the flux from boiling off too quickly under the high heat of a HIKO or GOOT iron.
Insulation Resistance: Post-soldering insulation is excellent, preventing parasitic current paths in high-sensitivity circuits.
Consistency: Thick paste form that stays exactly where applied—perfect for vertical surfaces or overhead wiring.
Packaging: Durable 50g wide-mouth tin for easy application with a brush or toothpick.

Prototyping & Engineering Tips (Robogears Exclusive)

The Wire-Tinning Trick: At your Pimpri workshop, dip the stripped ends of multi-strand wires into the ZJ-18 paste before applying solder. The flux will draw the molten metal deep into the wire strands, preventing "wicking" failure and ensuring a robust connection.
SMD Rework Aid: Use a small amount of ZJ-18 when swapping out 8-pin SOIC chips or SMD transistors. It helps the hot air distribute heat evenly and prevents solder bridges from forming between tiny pins.
Cleaning Protocol: While ZJ-18 is non-corrosive, we suggest cleaning any remaining residue with Iso-Propyl Alcohol (IPA) for medical-grade or mission-critical projects where a 100% clean PCB is required.
Shelf Life Maintenance: Keep the lid tightly closed when not in use. If the paste becomes slightly firm over many months, placing the tin on a warm surface for a few minutes will restore its smooth, buttery consistency.

Package Includes

1 x KOOCU ZJ-18 Soldering Paste Flux (50g Tin)

Image Disclaimer

Product images are shown for illustrative purposes only. The design of the tin's labeling or the exact shade of the paste may vary slightly based on the latest import batch, but the genuine KOOCU ZJ-18 chemical formula and 50g weight remain as described.