A4 Masking Dot Sheets for Conformal Coating

£5.00 excl. VAT

A4 masking dot sheets for fast, accurate masking during conformal coating and electronics coating processes. A cost-effective, short-lead-time alternative to masking dot rolls.

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Description

These A4 masking dot sheets provide a fast, accurate, and highly efficient masking solution for conformal coating and electronics coating processes.

Operators peel individual masking dots directly from the sheet and apply them to PCBs, enabling precise masking of connectors, test points, LEDs, and defined keep-out areas. This helps prevent unwanted coating build-up and supports consistent coating quality.

The A4 sheet format improves workstation organisation and handling compared with loose rolls of masking dots. Operators can quickly select the required dot size, maintain consistent placement, and reduce preparation time during both setup and production.

These masking dot sheets are a practical alternative to traditional masking dot rolls, particularly for prototype builds, low-volume production, and high-mix manufacturing. Sheet-based formats reduce waste, simplify handling, and offer a more cost-effective option for many applications.

Because the sheets are printed to order, lead times are significantly shorter than standard masking dot rolls, making them ideal when rapid turnaround or short-notice production is required.

A4 masking dot sheets support clean masking, reduced rework, and repeatable coating results, providing a flexible and commercially efficient solution for electronics manufacturers.

Additional information

A4 Sheet of Dots - MOQ 5

3mm – 540 per A4 sheet, 4mm- 540 per A4 sheet, 5mm-430 per A4 sheet, 6mm-430 per A4 sheet, 6.4mm -430 per A4 sheet, 7mm-430 per A4 sheet, 8mm-430 per A4 sheet, 9mm-410 per A4 sheet, 9.52mm-350 per A4 sheet, 10mm-350 per A4 sheet, 12mm-190 per A4 sheet, 12.7mm-190 per A4 sheet, 15.9mm-150 per A4 sheet, 19mm-100 per A4 sheet, 25.4mm-75 per A4 sheet

Additional Information

Our dedicated range of masking dots is designed for compatibility with all common conformal coating production processes, helping ensure reliable masking performance across a wide range of applications.

Many general-purpose masking dots and tapes available on the market are not optimised for conformal coating environments and can introduce avoidable process issues, including:

  • De-wetting around the perimeter of the dot, where the conformal coating pulls back
  • Adhesive residue remaining after removal, requiring additional cleaning steps
  • Bleeding of the conformal coating underneath the dot during application
  • Tearing or splitting during removal, slowing processing and increasing handling time
  • Adverse chemical interaction with the conformal coating material

For an efficient and repeatable production process, it is essential to minimise these effects. Our masking dots are engineered to provide reliable adhesion, effective edge sealing, and clean removal, ensuring protected areas remain completely free from conformal coating and helping to reduce rework.

Technical Description

Typical Properties

Adhesive Type Rubber-based
Total Thickness 0.180Β mm
Peel Strength > 0.28Β kN/m
Initial Tack > 10 (ball test)
Holding Power > 15Β hours
Temperature Resistance 160Β Β°C for 30Β minutes

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