Donut Style Masking Discs, also known as Donut Style Masking Dots, are designed for electronic manufacturing and are primarily used during the solder wave process. Donut Style Masking Discs are made of 2 mil polyester with 1.5 mil silicone adhesive. They can withstand temperatures of up to 300°F/150°C. The discs are packaged in 3" core roll.
- Electronic Circuit Board assembly
- General Purpose Masking
- Powder Coating
The first number of the description is the internal diameter and the second number is the outer diameter. For example, 1/8" x 1/4" means these discs have an internal diameter of 1/8" and outer diameter of 1/4."