3M™ Polyester Tape 8403

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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, such as anodization

Frequently viewed resources

Tech Data Sheet (PDF, 235KB)

Overall Width (Imperial)

Overall Width (Metric)

Total Tape Thickness without Liner (Metric)

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Details

Highlights

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, such as anodization
Thicker version of 3M™ Polyester Tape 8402, providing more durability and longer wear
Ideal for splicing applications on surfaces that are difficult to adhere too, such as silicone coated papers and films
Translucent green backing is easily identifiable for splicing applications
Meets several aerospace specifications

For anodizing, composite bonding and splicing, use 3M™ Polyester Tape 8403. This translucent green tinted tape is coated with a silicone adhesive that bonds well on difficult surfaces, including silicone coated papers and films. It is chemical resistant and performs under a wide range of temperatures and environments. This tape is a thicker version of 3M™ Polyester Tape 8402.

3M™ Polyester Tape 8403 is a thicker polyester tape designed for easy handling and more durability.

3M™ Polyester Tape 8403 tape has a silicone adhesive functions well for masking and removes cleanly, in one-piece, from most surfaces

Thick and Durable Tape for Masking in High Temperatures
3M™ Polyester Tape 8403 is a thicker polyester tape designed for easy handling and more durability. It is ideal for masking in high temperature applications and adheres well to silicone coated surfaces. The tape has a silicone adhesive that 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.

Learn more about 3M™ Masking and Surface Protection Products (PDF, 4.65 Mb)

With exceptional chemical resistance, this tape works effectively in some of the most 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 425°F (218°C). Our 3M™ Polyester Tape 8403 has long service life and is designed to remain firmly adhered and flexible.

Recommended applications

Splicing of silicone liners, films and papers
Holding parts or vacuum bags during composite bonding operations
Masking metal surfaces (PDF, 254.41 Kb) 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

Typical properties

Details

Adhesive Type	Silicone
Application	High Temperature Masking, Butt Splicing and Core Starting, Splicing Silicone Treated Papers
Backing (Carrier) Material	Polyester
Backing (Carrier) Thickness (Imperial)	1.4 in
Backing (Carrier) Thickness (Metric)	0.04 mm
Brands	3M™
Elongation at Break	140.0 %
Industries	Automotive, Electronics, Military & Government, Specialty Vehicle, Construction, General Industrial, Print, Transportation, Appliance, Marine, Aerospace, Paper, Metalworking
Maximum Operating Temperature (Celsius)	218 ℃
Maximum Operating Temperature (Fahrenheit)	425 ℉
Minimum Operating Temperature (Celsius)	-50 ℃
Minimum Operating Temperature (Fahrenheit)	-60 ℉
Product Color	Green
Smallest Saleable Unit	Roll
Specifications Met	ASTM D3330, ASTM D3652, ASTM D3759
Tensile Strength (Imperial)	46.0 lb/in
Tensile Strength (Metric)	71.8 N/100mm, 718 N/100mm, 806 N/100mm
Total Tape Thickness without Liner (Imperial)	2.4 mil
Total Tape Thickness without Liner (Metric)	0.06 mm, 0.061 mm
Units per Case	1.0 Roll, 4.0 Roll, 8.0 Roll, 12.0 Roll, 24.0 Roll, 36.0 Roll, 48.0 Roll

Dimensions and Classifications

Overall Length (Imperial)	72 yd, 144 yd
Overall Length (Metric)	65.8 m, 65.83 m, 65.837 m, 75.836 m, 131.67 m
Overall Width (Imperial)	0.5 in, 0.75 in, 1 in, 2 in, 2.75 in, 3 in, 4 in, 6 in, 12 in, 14 in, 24 in, 36 in
Overall Width (Metric)	12.7 mm, 19 mm, 25.4 mm, 50.8 mm, 69.85 mm, 76.2 mm, 101.6 mm, 152.4 mm, 304.8 mm, 355.6 mm, 609.6 mm, 914.4 mm

Resources

3M™ 8403 Polyester Tape

Data Sheets

(PDF, 235KB)

Reviews

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	Current product 3M™ Polyester Tape 8403	3M™ Polyester Tape 8412	3M™ Polyester Tape 8991	3M™ Polyester Tape 8992
Overall Width (Metric)	12.7 mm, 19 mm, 25.4 mm, 50.8 mm, 69.85 mm, 76.2 mm, 101.6 mm, 152.4 mm, 304.8 mm, 355.6 mm, 609.6 mm, 914.4 mm
Total Tape Thickness without Liner (Metric)	0.06 mm, 0.061 mm
Overall Width (Imperial)	0.5 in, 0.75 in, 1 in, 2 in, 2.75 in, 3 in, 4 in, 6 in, 12 in, 14 in, 24 in, 36 in
Total Tape Thickness without Liner (Imperial)	2.4 mil
Backing (Carrier) Material	Polyester
Product Color	Green

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3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use. Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice. Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage. For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.