

⚡ Solder smarter, not harder — the no-clean flux that keeps you ahead of the curve!
Kester 951 Liquid Soldering Flux is a professional-grade, no-clean flux in a handy 2-ounce bottle. It features a low solids content for minimal residue, is lead-free and RoHS compliant, and is compatible with both lead and lead-free solders. Trusted by technicians since 2017, it ensures clean, reliable solder joints with less cleanup, making it a must-have for modern electronics assembly.
| ASIN | B01N2333K5 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #61,969 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #61 in Soldering Flux |
| Customer Reviews | 4.5 4.5 out of 5 stars (320) |
| Date First Available | January 16, 2017 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 2 ounces |
| Item model number | 951 |
| Manufacturer | Kester |
| Material | Resin |
| Part Number | 730-T951-2 |
| Product Dimensions | 4 x 2 x 2 inches |
A**R
High quality
Easy to clean and works well
D**.
This stuff is good!
This stuff is good! No clean is on the money. I still clean out of habit though!
J**.
Excellent
Excellent solder flux. Works as it should and requires little to no need for cleanup after use.
S**Y
Very Good Flux
The bottle is labeled with the date of manufacture and expiration date. The applicator is awesome. This is actually brilliant for majority of users as buying larger volumes would be a waste for many people. This flux dries out very fast from the iron's heat. It does work though.
A**.
A mess free, trouble free, easy to use solution for hobbiest and professionals
I purchased this product at a glance and I have not regretted it. It goes on easy and cleans all soldering surfaces without making a mess. I normally go for paste, but this converted me to liquid. I don't work on electronics professionally, I'm just a humble hobbiest. As a hobbiest, I can tell you every brand of flux that works the best, that is easy to clean up etc. Kester 951 blows everything out of the water! I barely have to clean up after soldering a wire, sometimes I don't even have to. It's incredibly flammable, and that's the only con. The smell isn't so bad either, it smells pleasant when burned with an iron. I will buy this again when the time arises. The seller had it delivered a week earlier than expected, which was really awesome!
J**R
The best flux around!
Best customer service! Also the best high flow liquid flux! Been using it for a decade!
O**D
Excellent as expected.
It appears to be the quality no-clean flux it purports to be. Happy with my purchase.
S**T
flammable, but it works!
Like 150 proof vodka.. cleans very well. slight odor so use ventilation. cleans well, easy applicator and it should last me a long time this liquid flux. Thanks!