Kester 44 Rosin Core Solder 0.8mm
- 66/44 alloy listed, rosin core
- 1 lb spool, fine diameter wire
- Part 24-6040-0027
- 2.5 x 2.5 x 2.25 inches package size
- Flux type and melting range not listed
Last refreshed Sep 28, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
Rosin-core solder from Kester with a thin wire gauge. The page is brief, with no melting range, flux class or cleaning guidance.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B001W2XZOSModel: 44Category: Solder
Overview
Feeding a fine rosin-core wire onto a joint is what this one-pound Kester spool is for. The title and description name an alloy mark with a rosin core, and the page supplies the part number and package size.
A fine wire on a full spool supplies many small joints, and Kester is a familiar solder maker. The limitation is thin data: the listing gives no melt point, flux percentage, or no-clean statement.
Who it's for
Hobbyists and shop users who just need a rosin-core spool for general joints will find it straightforward. Anyone working to a process specification should confirm the alloy details with the seller first.
Pros and cons
- Rosin core in the wire
- Full pound spool
- Fine wire diameter in the title
- Melting range not listed
- Flux class not listed
- Lead status not stated
Performance notes
The rosin in the core cleans oxide from the joint as the wire melts, and a thin wire adds solder in small amounts. Alloy mix sets the melting behavior, but no temperature is stated, so test on scrap before relying on it.
Specifications
| Brand | Kester |
|---|---|
| Model | 44 |
| Dimensions & fit | |
| Item weight | 1 pound |
| Product dimensions | 2.5 x 2.5 x 2.25 inches |
| Construction & materials | |
| Material | 66/44 |
| Other details | |
| Item model number | 24-6040-0027 |
| Flux type | Rosin core |
| Manufacturer | Kester |
Frequently asked questions
What is the part number?
The part number is 24-6040-0027.
What are the package dimensions?
2.5 x 2.5 x 2.25 inches.