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Extended holiday returns
FREE refund/replacement until Jan 31, 2027 Learn more
FREE refund/replacement until Jan 31, 2027 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2027
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
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Availability:
In Stock.
Arrives
Tuesday, Nov 17
Recently Viewed
At a glance
- Condition
- New
- Model
- 24-6337-0010
- Dimensions
- 2.5 x 2.5 x 2.25 in
- Weight
- 1 lb
Features 5
- Industry standard for decades
- Excellent solderability to a wide variety of metallization's
- High activity rosin core formulation
- Leaves bright/shiny solder joints after reflow
- Standard core 66 (3.3 percent flux)
Description
Kester 44 rosin flux is an activated rosin formula for use in flux-cored solder wire. Kester 44 rosin flux has virtually dominated the field of activated rosin core solders for well over four decades. An outstanding performance feature of this flux is the "instant-action" wetting behavior. The high mobility and fast-spreading action of this flux results in more reliable production line soldering.
Specs 4
| Product Dimensions | 2.5 x 2.5 x 2.25 inches |
|---|---|
| Item Weight | 1 pounds |
| Manufacturer | Kester |
| Item model number | 24-6337-0010 |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Nov 17
Yes, absolutely! This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2027.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Top-Notch Solder Wire: Quality that Lasts
Style: Rosin Core Solder
You won't be disappointed with this solder wire! It consistently delivers impeccable results with its shiny solder joints and minimal residue, making it the top choice for any soldering project. Even though it's slightly more expensive than other options, the quality and longevity it offers make it a worthwhile investment. Don't miss out on this exceptional product.
...
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Reviewed in the United States on September 16, 2023 by Oscar S.
great solder
Style: Rosin Core Solder
First time I used Kester 63/37 solder. The increased flux content (3.3%) and activity (M) make perfect solder joints every time.
Reviewed in the United States on June 26, 2024 by Amazon Customer
Best. Solder. Ever.
Style: Rosin Core Solder
I cannot state that enough - it really is the best. Throw the lead-free in the trash and get this. You will not be disappointed. It melts like butter, amazing flow and leaves a nice perfect shine. It’s also easy to clean up with alcohol after soldering. You get so much for the $$ in both quality and quantity. It is a LOT of solder!
...
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Reviewed in the United States on June 10, 2024 by LJM
Very Good
Style: Rosin Core Solder
It works very well. I had no issues using this solder. It came perfectly coiled and packaged. My only issue was the tape they used to secure the spool inside the cardboard container. It is secured with a packing tape. This tape was impossible to remove without damaging the paper label on the spool. So now the spool has no information on it. It is a simple fix with a pen. However, I prefer the factory print over my own atrocious handwriting. That is literally the only negative and that is a small gripe.
...
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Reviewed in the United States on December 30, 2022 by Shirley
Worth the extra money
Style: Rosin Core Solder
I had always used the cheapest solder I could find until I had some instruction from an electronics teacher with some good quality Kester solder. The difference is huge. I had some cheap solder with Chinese writing on it and tried it side by side with the Kester and the ease of use is very noticeable. This stuff melts more easily, flows where it should, and doesn't make those nasty blobs with tails. I had been thinking I was doing something wrong getting ugly solder joints. Turns out crap solder makes crap joints. Kester solder (with the right ratio) makes excellent solder joints.
...
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Reviewed in the United States on May 3, 2019 by D. Rhodes
Kester is the very best..
Style: Rosin Core Solder
What can I say, this is the Best of the Best. This 1 lb roll will last me forever. Went with very small diameter for surface mount components. Connections shine after cooling not dull.
Reviewed in the United States on December 21, 2023 by JAC
Life changer.
Style: Rosin Core Solder
For years I've been soldering with a generic wire, using a flux pen to compensate for the lack of flux inside of it. Then one day someone in one of the forums suggested I use a Kester wire. This is seriously life changing. No more soldering frustrations for me, the wire melts right into the perf board holes without any trouble. Just a note - this thing is heavy. You're going to need a soldering station or some sort of a holder.
...
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Reviewed in the United States on November 5, 2022 by Ofer Groman
solder is gorgeous! but this time sent not the one I ordered.
Style: Rosin Core Solder
The quality of the soldering data is high, the wettability with flux and high solder. very easy to use. I want to be when you send a little closer!
Reviewed in the United States on March 4, 2019 by Mionnix Mionnix