3M™ Polyester Tape 8403 has a silicone adhesive for composite bonding and splicing of many silicone coated papers and films. Works in demanding conditions and retains flexibility in autoclave conditions in temperatures ranging from -60°F (-50°C) to 350°F (177°C). Silicone adhesive provides clean removal from a variety of surfaces. Chemical resistant adhesive and backing provides durability in difficult environments.
Applications: Masking edges overlap seams in metal bonding process where the excess epoxy (“flash”) flows onto the tape. Clean-up is complete when the tape is removed; Protective overall mask on panels to mild caustic or acid bath etching. Helps prevent scratches during handling and provides desired masking during metal bonding and fabrication; Holding of parts or vacuum bags during bonding process; Mask for metal in acid or caustic chemical milling baths; Masking parts in anodizing processes; Splicing of silicone coated papers and films; Paint masking of materials subjected to high temperatures
Filename | Action |
3mtm-8403-polyester-tape.pdf | [ Download File ] |
Tech Specs | |
Backing | Polyester film |
Adhesive Type | Silicone |
Total Thickness | 2.4 mils |
Adhesion to Steel | 27 oz./in. width (29 N/100 mm) |
Tensile Strength | 46 lbs./in. width (806 N/100 mm) |
Elongation at Break | 150% |
Operating Temperature | Removes cleanly and remains flexible after 3 hours, 350°F (177°C), in autoclave |
Colors | Translucent green |