Why does exposed copper need covering?

Because bare copper shorts against its neighbours and corrodes. Scraping mask away to reach a trace is necessary, but leaving it bare turns a good repair into a fault that surfaces weeks later.

A UV lamp, usually in seconds. It will not set under normal bench lighting, which is what gives you time to place it accurately.

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MIJING SG-22 UV Solder Mask

Name: MIJING SG-22 UV Solder Mask
Brand: Mijing
SKU: MJ-SG22
Price: 800 PKR
Availability: InStock

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MIJING SG-22 UV Solder Mask.

Rs 800

MIJING SG-22 UV Solder Mask. • Cures hard in seconds under UV light • Stays workable until you light it • Insulates repaired traces and secures jumper wires…

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MIJING SG-22 UV Solder Mask.

Key features

Cures hard in seconds under UV light
Stays workable until you light it
Insulates repaired traces and secures jumper wires

What this is used for

Insulating a repaired trace
Covering exposed copper after scraping
Securing a jumper wire in place

Who it's for

Micro-soldering technicians finishing trace repairs properly.

Manufacturer description

MIJING SG-22 UV Solder Mask. • Cures hard in seconds under UV light • Stays workable until you light it • Insulates repaired traces and secures jumper wires Compatible with: Phone logic board repair areas.