3M 7000042808 Polyester Tape 8992 Green 3.2 Mil 50.4x72yd

Product Description

The 3M 7000042808 is a dark green polyester film tape with a silicone-based adhesive, rated at 3.2 mil thickness. It is built for high-temperature masking work and performs reliably in demanding industrial and finishing environments. The polyester backing resists heat exposure, making it suitable for powder coating ovens and similar elevated-temperature processes. Installers and finishing technicians in powder coating shops, composite fabrication facilities, and general industrial settings use this tape for masking, flash breaker applications, and bag sealing. The roll measures 50.4 inches wide by 72 yards long and ships as a single-roll unit.

This tape is used across a broad range of high-temperature masking applications. Powder coating and paint finishing operations rely on it to mask surfaces before oven curing cycles. It also sees regular use in composite and aerospace-adjacent workflows as a flash breaker tape and bag sealing tape. Additional applications include splicing, tabbing, and roll closing of silicone-treated liners and release materials. Its silicone adhesive system is well matched to surfaces that require clean release after heat exposure.

Key Features

• Dark green polyester film backing rated at 3.2 mil thickness
• Silicone adhesive formulation suited for high-temperature masking cycles
• Large-format roll at 50.4 inches wide by 72 yards long for broad coverage applications
• Suitable for powder coating masking, flash breaker use, and bag sealing
• Also used for splicing, tabbing, and closing silicone-treated liner rolls

Compatibility

Designed for use in high-temperature masking, powder coating, composite bagging, and industrial splicing applications where a heat-resistant silicone-adhesive polyester tape is required.

Installation Notes

Apply to clean, dry surfaces free of oils, dust, and loose particles before masking or sealing operations begin. Ensure the tape edges are firmly pressed down to prevent bleed-through during powder coating or oven cure cycles. When used as a flash breaker or bag sealing tape in composite layup, follow the laminate schedule and process temperatures established by the job specification. Remove tape promptly after the process cycle while the assembly is still warm to promote clean release and minimize adhesive residue.

Technical Specifications

• Tape Thickness: 3.2 mil
• Width: 50.4 inches
• Length: 72 yards
• Color: Dark Green
• Backing Material: Polyester film
• Adhesive Type: Silicone
• Unit of Measure: Roll
• Weight: 23.47 pounds
• UPC: 00051115647239

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000042808