Solder Masks

What is it?
Solder mask or solder stop mask is a thin lacquer like layer of polymer that is applied to the copper traces of a circuit board for protection against oxidisation and to prevent solder bridges from forming between closely spaced solder pads.

What different types are there?
Top- and Bottom-side Masks A topside solder mask allows the electronic engineer to identify the openings in the green solder mask layer already added to the PCB by one of the epoxy, ink or film techniques. Component pins can then be soldered onto the board using those identified places

Epoxy Liquid Silkscreened onto the PCB pattern, epoxy liquid is the lowest cost type of solder mask. Epoxy is a thermosetting polymer that has many applications.

Liquid photoimageable solder mask is delivered as an ink formulation. The ink can be silkscreened or sprayed onto the PCB, then exposed to the pattern and developed.

Dry film photoimageable solder mask is applied using vacuum lamination, then exposed and developed. After developing, openings are created in the pattern and parts can be soldered to the copper pads. Copper is layered onto the board inside the holes and on the trace areas using electrochemical processing.

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Omschrijving Prijs Lead Free Peelable Package Size Package Type
RS-stocknr. 118-1403
FabrikantnummerPCM250ML
FabrikantElectrolube
14,46 €
Each
Aantal stuks
Yes Yes 250ml Bottle
RS-stocknr. 420-546
FabrikantnummerPCS250
FabrikantElectrolube
14,58 €
Each
Aantal stuks
Yes Yes 250ml Bottle
RS-stocknr. 561-549
Fabrikantnummer292959
FabrikantMulticore
19,85 €
Each
Aantal stuks
Yes - 250ml Bottle
RS-stocknr. 277-8222
FabrikantnummerCM8E
FabrikantChemtronics
14,84 €
Each
Aantal stuks
Yes Yes 236ml Bottle
RS-stocknr. 508-6403
FabrikantnummerCLF8E
FabrikantChemtronics
17,53 €
Each
Aantal stuks
Yes Yes 250ml Bottle
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