What Is Peelable Soldermask?

Peelable soldermask is a temporary protective coating applied to selected areas of a printed circuit board. It is used to protect pads, holes, contacts, or specific PCB areas during soldering, plating, assembly, or other manufacturing steps.

After the required process is completed, the peelable soldermask can be removed from the PCB. It is designed to have good elasticity, tear resistance, and easy removability.

Why Use Peelable Soldermask?

• Protect selected PCB areas from solder during wave soldering.
• Protect plated holes, gold fingers, contacts, or pads during fabrication or assembly.
• Reduce the need for manual taping or temporary masking.
• Improve process consistency for selective solder protection.
• Support prototype PCB and production PCB manufacturing requirements.

Typical Applications

Application	Purpose
Wave Soldering Protection	Protect selected PCB areas from direct contact with solder during wave soldering.
Selective Soldering	Mask areas that should not be soldered during the assembly process.
Plating Process Protection	Protect specific areas during PCB surface treatment or plating steps.
Contact and Pad Protection	Protect pads, contacts, holes, or exposed copper areas during manufacturing.
Temporary Process Masking	Provide removable protection before or after PCB component soldering.

Benefits of Peelable Soldermask PCB Fabrication

Benefit	Explanation
Temporary Protection	Provides removable protection for selected PCB areas during fabrication or assembly.
Easy Removal	The material can be peeled off after the required process is completed.
Good Elasticity	Peelable soldermask has elasticity and tear resistance for easier handling.
Process Efficiency	Can reduce manual masking work and improve repeatability during PCB manufacturing.
Selective Area Protection	Suitable for partial PCB coverage where only specific areas need protection.

Peelable Soldermask PCB Capability

Item	Capability
Board Type	Single-sided PCB, double-sided PCB, and multilayer PCB
Base Material	FR4, High Tg FR4, and other materials upon review
Surface Finish	HASL, lead-free HASL, ENIG, OSP, immersion silver, and other options
Solder Mask	Standard solder mask plus peelable soldermask in selected areas
Order Type	Prototype PCB and production PCB fabrication
Required Files	Gerber files, drill files, peelable soldermask layer, drawings, or fabrication notes

Peelable Soldermask Design Considerations

1. Clearly Mark the Peelable Soldermask Area

The peelable soldermask area should be clearly shown in the Gerber layer, mechanical drawing, or fabrication instruction. Ambiguous marking may delay engineering review and quotation.

2. Avoid Very Small or Complex Shapes When Possible

Peelable soldermask is best suited for areas that can be applied and removed reliably. Very small openings, narrow strips, or complex shapes may require engineering review.

3. Confirm Assembly Process Requirements

If the peelable soldermask is used for wave soldering, selective soldering, or plating protection, please describe the process requirement when requesting the quotation.

4. Review Removal and Residue Requirements

Peelable soldermask is intended to be removed after the required process. If your application has special cleanliness, residue, or assembly requirements, please inform us before production.

Peelable Soldermask PCB Quote

To request a peelable soldermask PCB quotation, please send your Gerber files, drill files, board quantity, material requirement, surface finish, solder mask color, and peelable soldermask location details.