ok I must be the dunmbest guy out here. How do you install the tip? There is a piece on top of the bottle?

There is a small cone-shaped cap on the top of the black bottle cap. It unscrews. That is the fitting where the dispensing needle is screwed on! Please contact us at (859)317-2951 if you have questions.

No, this is NOT no clean. As an activated rosin, any residue must be removed. For a great no-clean flux we would suggest Kester 959T.

Suggestions on how to clean excess flux from components and board?

We agree with others- Isopropyl alcohol works well, that's the base solvent in this flux. And please note- its VERY IMPORTANT to remove the residue, since this is an activated flux. If not there may be corrosion issues. If you are not familiar with the applications for this product, we would suggest an RMA flux such as Kester 186 or no-clean flux such as Kester 959T.

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Kester 1544 Liquid Soldering Flux, Activated Rosin, 2oz Bottle

Product ID: 709917396

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🧪Activated Rosin Formula for superior solder flow

🧴2oz precision dispensing bottle for mess-free use

♻️Lead-Free & RoHS Compliant for eco-conscious pros

Description

🛠️ Flux your way to flawless connections—don’t get left behind!

MADE IN THE USA - Trusted quality and consistency from a renowned manufacturer
COMPACT CONVENIENT - 2-ounce bottle designed for precise application and easy storage
ECO FRIENDLY COMPLIANCE - Lead-free and RoHS certified to meet modern environmental standards
UNIVERSAL COMPATIBILITY - Works seamlessly with both lead and lead-free solders for versatile projects
EFFORTLESS SOLDERING MASTERY - Activated rosin formula ensures smooth, reliable joints every time

Kester 1544 Liquid Soldering Flux is a premium activated rosin formula in a convenient 2oz dispensing bottle. Lead-free and RoHS compliant, it supports both lead and lead-free solders, delivering reliable, clean solder joints. Proudly made in the USA, it’s the go-to choice for professionals demanding precision and eco-conscious performance.

Specifications

Manufacturer	Kester
Country of Origin	USA
Package Dimensions	10.16 x 5.08 x 5.08 cm; 85.05 g
ASIN	B07K4F6SDM

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