Bsc Preferred T961293 Polyimide Masking Discs 1000/case

Product Description

The BSC PREFERRED T961293 is a case of 1000 polyimide film masking discs with a silicone adhesive backing, designed for precision masking in high-temperature industrial and electronics manufacturing processes. Each disc is mounted on a liner wound on a 3-inch core for consistent, easy dispensing. The silicone adhesive bonds securely during processing and releases cleanly without leaving any residue. These discs withstand temperatures up to 500 degrees F, making them suitable for demanding thermal environments. Electronics assemblers, automotive fabricators, and industrial production technicians rely on this format for repeatable, reliable masking coverage on small surface areas.

These masking discs are used wherever a small, defined area must be protected from coatings, solder, or other surface treatments. Primary applications include masking circuit boards during wave soldering operations, powder coating processes, and manufacturing environments in the automotive and transformer industries. The disc format is particularly well-suited for covering small pads, connectors, or contact points on PCBs and other components where tape cutting is impractical or inconsistent.

Key Features

• Polyimide film construction rated to 500 degrees F for high-temperature process compatibility
• Silicone adhesive leaves zero residue upon removal
• Discs pre-mounted on a liner wound on a 3-inch core for controlled dispensing
• Suited for wave soldering, powder coating, and automotive and transformer manufacturing masking
• Case quantity of 1000 discs supports production-volume workflows
• Equivalent to part number S-17221

Compatibility

Equivalent to part number S-17221. Designed for use in wave soldering, powder coating, and automotive and transformer manufacturing masking applications where high-temperature resistance and clean removal are required.

Installation Notes

Apply discs to clean, dry surfaces before entering any soldering or coating process to ensure proper adhesion and masking integrity. Remove discs promptly after processing while surfaces are still warm, if possible, to facilitate clean peel-off. Handle discs with clean tools or gloves to avoid contaminating the adhesive surface prior to application.