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Printed Circuit Board Solder Masking

M803 is a 3 mil, polyester film with silicone adhesive. It offers an economical method to hold insulate and/or protect materials. M803 offers high/low temperature resistance. It is a printed circuit board masking tape used primarily as a protection device in the solder mask over the bare copper process. The optimum construction provides full protection from plating solutions with reduced set up time.

Backing/Carrier PET - Polyester
Adhesive Silicone
Thickness 3 Mils
Tensile 25.00 lbs/in
Elongation 100.00%
Adhesive Activation Pressure
Adhesion (unwind) 25 oz/in
Min. Application Temp 20° F
Min. Service Temp -100° F
Max Short-Term Temp 350° F
Max Long-Term Temp

Product Features

  • Resists damage from sharp edges
  • Offers low cost, effective holding for materials
  • Highly conformable
  • Prevents leakers & eliminates residue

Adhesive Tape Applications

  • Printed circuit board masking used primarily as a protection device in the solder mask over the bare copper process
  • Composite bonding protection

Adhesive Tape Colors

  • Blue

We're sorry, there are no sizes currently available for this product.

Comparable Products

Data provided by Budnick Converting, Inc.

The physical properties listed are typical values and are not to be considered as specifications. Our suggestions for use are based on tests we believe to be reliable. However, the purchaser must carry out their own tests to determine the suitability of the product for their internal use. Information is given in good faith, but without warranty.

It is essential, as with all pressure-sensitive tapes, that the surface to which the tape is applied be clean, dry and free of grease and oil.

Shelf life from date of manufacture is based on the product being stored at 70°F(21°C) / 50% relative humidity out of direct sunlight.

Specification compliance is dynamic and should only be used as a general guide. Always confirm that the tape you are interested in currently complies with all specification requirements. Please verify that the product number that you select is available in the proper size and color to meet your specification.

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For decades Budnick has provided customized solutions for specialty adhesive applications designed specifically for manufacturers. Whether you're looking to speed up production, improve product performance, or protect your products during transport, Budnick has a solution for your needs!