Why does flux residue need removing?

Because it is mildly conductive and draws moisture, so it creates leakage paths between pads. That is how a repair that tested perfectly comes back as an intermittent fault weeks later.

What should I use with the brush?

Isopropyl alcohol, ideally 99%. Brush with the board tilted so the dissolved residue runs off rather than settling somewhere else on the board.

Does anti-static really matter for a brush?

Yes. Bristles moving across a dry board generate static, and dumping that into an exposed logic board is an avoidable risk.

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SUNSHINE SS-02 Double-Sided Cleaning Brush

Name: SUNSHINE SS-02 Double-Sided Cleaning Brush
Price: 1200 PKR
Availability: InStock

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A double-sided cleaning brush for cleaning phone logic boards, with an ultra-fine anti-static side paired with a stiffer side for deep groove work.

Rs 1,200

A double-sided cleaning brush for cleaning phone logic boards, with an ultra-fine anti-static side paired with a stiffer side for deep groove work. Board…

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A double-sided cleaning brush for cleaning phone logic boards, with an ultra-fine anti-static side paired with a stiffer side for deep groove work.

Board cleaning is not cosmetic. Flux residue left on a board is mildly conductive and hygroscopic, so it draws moisture and creates leakage paths between pads — which is how a repair that tested fine comes back as an intermittent fault weeks later.

Key features

Anti-static bristles safe on exposed boards
Two heads for different cleaning tasks
Handles isopropyl alcohol without degrading

What this is used for

Removing flux residue after soldering
Cleaning corrosion from a liquid-damaged board
General bench cleaning

Who it's for

Repair technicians who clean boards properly after soldering.

Manufacturer description

A double-sided cleaning brush for cleaning phone logic boards, with an ultra-fine anti-static side paired with a stiffer side for deep groove work. Board cleaning is not cosmetic. Flux residue left on a board is mildly conductive and hygroscopic, so it draws moisture and creates leakage paths between pads — which is how a repair that tested fine comes back as an intermittent fault weeks later. • Anti-static bristles safe on exposed boards • Two heads for different cleaning tasks • Handles isopropyl alcohol without degrading Compatible with: Phone logic boards and repair tooling.