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Silver tin containing 150 g rosin flux soldering paste

JacobsParts Inc.

JacobsParts Inc. FLX-B Rosin Flux Soldering Paste 150 g 5.3 oz

SKU CH-ANC3-G47QJ

Rosin flux paste cleans metal surfaces, prevents oxidation and improves solder flow for reliable joints, supplied in a 150 g can

  • Sold asEach
  • Product typeFlux
  • Number of items1
  • Key featuresCleans and prevents oxidation
  • Cleans and prevents oxidation for stronger solder joints
  • Neutral pH 7 ±0.3 protects sensitive components
  • Paste form in a 150 g can for controlled application
  • Increases molten solder flow for efficient soldering
  • Rosin-based flux creates reliable electrical and mechanical bonds

Soldering Flux Paste 150 g

JacobsParts FLX-B rosin flux paste cleans and prevents oxidation on metal surfaces so molten solder forms strong electrical and mechanical bonds. The neutral pH 7 ±0.3 formula acts as a wetting agent that increases solder flow and overall soldering efficiency. It is supplied as a single 150 g can of paste for electronics, automotive or general repair work.

Compatibility Check Before Ordering

Verify that rosin flux is appropriate for the metals and components you intend to join, as some specialised alloys or high-reliability applications may require a different flux chemistry. Confirm that your cleaning process can handle rosin residue if post-solder cleaning is required for the finished assembly. Ensure the paste form suits your dispensing method, whether by syringe, brush or direct application from the tin.

Build Quality and Daily Use

The flux is packaged in a resealable can that keeps the paste from drying out between jobs and allows easy scooping with a brush or tool. Neutral pH reduces the risk of corrosion on sensitive traces when residue remains on the board after soldering. Rosin formulation leaves a tacky residue that may need solvent cleaning for cosmetic or conformal-coating purposes, so plan for that step in your workflow.

How it compares

Measured against everything we stock in Soldering Irons & Stations, at today’s prices. Recalculated every night.

Price $5.99
Cheaper than about 95% of the 802 comparable items (median $25.99).

Specifications

Product
Brand nameJacobsParts
Model nameFLX-B
Product typeFlux
In the box
Number of items1

Questions about this item

What comes inside the 150 g can of FLX-B flux paste and is anything else needed to start soldering?

The can contains 150 g of rosin flux paste. A soldering iron and solder wire are required separately to make joints.

The listing shows a single 150 g can — are there other sizes or bundle options for FLX-B?

Only the 150 g can is offered; no multi-pack or larger tin is listed for this model.

How does the neutral pH 7 ±0.3 of this paste affect the finished joint on a circuit board?

The near-neutral pH leaves minimal corrosive residue, so joints stay reliable without aggressive cleaning.

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