Kester
Kester 2331-ZX Water Soluble Flux Pen
Bottom line: The Kester 2331-ZX Water Soluble Flux Pen is a specs-and-price decision rather than a crowd-consensus one in the tools & maintenance category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.
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Pros & Cons
Pros
- ✓ Backed by Kester's warranty and support channels
Cons
- ✗ Check battery runtime and RPM/CFM specs match your case size and cleaning frequency
- ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated
Manufacturer description
Kester 2331-ZX Flux Pen is designed for leaded and lead-free rework of conventional and surface mount circuit board assemblies. Kester 2331-ZX is an innovation in organic acid water-soluble flux chemistry for soldering circuit board assemblies. This unique, neutral pH chemistry flux provides the best ionic cleanliness of any organic water- soluble flux available to the electronics industry.
SpecPicks Verdict
SpecPicks scored Kester 2331-ZX Water Soluble Flux Pen using a rating × review-volume × price-fit model applied to published specs and reviews across the tools & maintenance category. Kester's tools & maintenance lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for tools & maintenance: PC towers accumulate significant dust in 3–6 months, so cleaning frequency drives cordless vs. canned-air tradeoff decisions. Match the device's RPM or CFM rating to your case size, and confirm battery runtime covers a full tower cleaning before ordering. Prices and stock are set by the retailer and may have moved since this page was last updated.
Full Specifications
| Brand | Kester |
|---|---|
| Color | black |
| Style | pen |
| Ink Base | Water |
| Ink Color | black |
| Line Size | Fine |
| Point Type | Fine |
| Unit Count | 1 Count |
| Marker Type | Permanent Marker |
| Model Number | 2331-ZX |
| Is Waterproof | False |
| Material Type | epoxy, foam, glass, iron |
| Number of Items | 20 |
| Target Audience | Adult |
| Number of Pieces | 1 |
| Additional Features | Unique Flux Chemistry |
| Age Range Description | Adult |
| Surface Recommendation | Glass, Paper |
| Water Resistance Level | Not Water Resistant |
| Writing Instrument Form | Marker Pen |
Ready to buy?
Kester 2331-ZX Water Soluble Flux Pen is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
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