Performance in Demanding Conditions
3M™ Polyester Tape 8902 is a thicker, more durable polyester tape ideal for masking in high temperature applications and adheres well to silicone coated surfaces. The translucent blue backing is tear resistant. Coated with a silicone adhesive, this tape functions well in masking for powder coating to provide sharp paint lines. It removes cleanly and in one-piece from most surfaces, avoiding slivering and breaking. This tape also excels in permanent splicing operations on silicone liners, papers and films subject to high temperatures.

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With good chemical resistance, this tape works effectively in chemical processes and demanding work conditions, such as anodization. The pressure sensitive silicone adhesive performs under a broad range of temperatures ranging from -60°F (-50°C) to 400°F (204°C).

Recommended applications

• Masking parts for high temperature powder coat painting
• Splicing of silicone liners, films and papers
• Holding parts or vacuum bags during composite bonding operations
• Flash breaker in metal bonding processes where the excess epoxy (flash) flows on the tape
• Masking metal surfaces (PDF, 254.41 Kb) in acid or caustic chemical milling baths
• Protective tape reduces scratches during handling and shipping
• Provides a good barrier for the separation of dissimilar metals