3M 8403 Polyester Tape, 25 mm x 66 m thickness 0.06 mm

3M 8403 Polyester Tape is ideal for splicing applications on surfaces that are difficult to adhere to, such as silicone coated papers and films. Its chemical resistant adhesive and backing provide durability in difficult environments, such as anodization.

3M 8403 works in demanding conditions and retains flexibility in autoclave conditions in temperatures ranging from -50°C to 177°C.

It is a thicker version of 3M 8402.

The tape has a translucent green backing and is therefore easily identifiable for splicing applications.

The silicone adhesive functions well for masking and removes cleanly, in one piece, from most surfaces. This tape also excels in permanent splicing operations on silicone liners, papers and films subject to high temperatures.

Recommended Applications

Splicing of silicone liners, films and papers

Holding parts or vacuum bags during composite bonding operations

Masking metal surfaces in acid or caustic chemical milling baths

Flash breaker in metal bonding processes where the excess epoxy (flash) flows on the tape

Protective tape reduces scratches during handling and shipping

Paint mask for areas subject to higher temperature bake cycles