3M Polyester Tape 8403

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Description for 3M Polyester Tape 8403

It is tape with a silicone adhesive for holding down bagging materials and parts during composite and metal bonding operations. Ideal for splicing applications on surfaces that are difficult to adhere too, such as silicone coated papers and films.

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Application Type	Bond, Masking
Material Form	Tape
Substrate	Metal, Silicone coated papers, Steel, Silicone coated films, Composite
Industry	Splicing applications
Manufacturer	3M
Chemistry	Silicone
Cure Method	Pressure Sensitive
Color	Translucent green, Translucent green
Chemical Resistance	Chemical resistant adhesive
High Temperature Resistance (°C)	350, Short Term, Heat Resistance
Low Temperature Resistance (°C)

Best Practices for 3M Polyester Tape 8403

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Technical Data for 3M Polyester Tape 8403

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Overview

Application Type
- Adhesive - Bond
- Masking
Material Form
- Tape
Substrate
- Metal
- Steel
- Silicone - Silicone coated films
- Composites - Composite
- Paper - Silicone coated papers
Industry
- Industrial
- Splicing - Splicing applications
- Packaging - Shipping
- Other - Protective overall mask on panels to mild caustic or acid bath etching. Helps prevent scratches during handling and provides desired masking during bonding and fabrication, Holding of parts or vacuum bags during composite bonding process, Mask for metal in acid or caustic chemical milling baths, Masking parts in anodizing processes., Paint masking of materials subjected to high temperatures, Suitable for cutting into desired shapes for use in masking operations, Holding down bagging materials, Flash breaker in metal bonding processes where the excess epoxy (flash) flows on the tape
Chemistry
- Tape Backing - Polyester
- Silicone
Cure Method
- Pressure Sensitive (min) - Pressure Sensitive
Color
- Translucent - Translucent green
- Green - Translucent green

Specifications

Bond Strength

General Bond Strength (psi)	27 (oz./in.)	Test Method
Tensile Strength (psi)	41 (lbs./in.)	Test Method

Tape Properties

Single Sided	Single Sided
Total Thickness (mil)	2

Material Resistance

Chemical Resistance	Chemical resistant adhesive
Environmental Resistance	Durability in difficult environments
High Temperature Resistance (°C)	350, Short Term, Heat Resistance	Test Method
Low Temperature Resistance (°C)		Test Method

Hardness

Elongation (%)	140	Test Method
Flexibility	Retains Flexible

Business Information

Shelf Life Details	Store under normal conditions of 60° to 80°F (16° to 27°C) and 40 to 60% R.H. in the original packaging, To obtain best performance, use this product within 24 months from date of manufacture
Shelf Life Temperature (°F)	70
Shelf Life Type	From date of manufacture
Shelf Life (mon)	24

Best Practices for 3M Polyester Tape 8403

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