3M 8402

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Description for 3M 8402

A film tape with a silicone adhesive for composite bonding and splicing of many silicone coated papers and films.

Application Type	Bond, Masking
1 Part or 2 Part	1 Part
Material Form	Tape
Substrate	Metal, Silicone coated papers, Steel
Industry	Splicing of many silicone coated papers, Splicing of many silicone coated films, Splicing of silicone, Splicing of silicone papers, Splicing of films subject to high temperatures
Manufacturer	3M
Chemistry	Silicone
Cure Method	Pressure Sensitive
Color	Translucent green, Translucent green
Chemical Resistance	Chemical resistance
High Temperature Resistance (°C)	Higher heat resistance, 177, Thermal resistant
Low Temperature Resistance (°C)	-50

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Application Type
- Adhesive - Bond
- Masking
1 Part or 2 Part
- 1 Part or 2 Part - 1 Part
Material Form
- Tape
Substrate
- Metal
- Steel
- Paper - Silicone coated papers
- Other - Films
Industry
- Industrial - Paint mask
- Splicing - Splicing of silicone, Splicing of films subject to high temperatures, Splicing of silicone papers, Splicing of many silicone coated papers, Splicing of many silicone coated films
- Other - Composite bonding, Masking edges of 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 subject to mild caustic or acid bath etching and to prevent scratches during handling prior to bonding operations, Holding of parts or vacuum bags during bonding operation, Mask for metal in acid or caustic chemical milling baths
Chemistry
- Silicone - Silicone
Cure Method
- Pressure Sensitive (min) - Pressure Sensitive
Color
- Translucent - Translucent green
- Green - Translucent green

Application Temperature (°F)	351

General Bond Strength (psi)	24 (oz./in.)	Test Method
Tensile Strength (psi)	33 (lbs./in.), 25 (lbs./in.)	Test Method

Abrasion Resistance	Abrasion resistance
Chemical Resistance	Chemical resistance
High Temperature Resistance (°C)	Higher heat resistance, 177, Thermal resistant
Low Temperature Resistance (°C)	-50

Elongation (%)	100	Test Method
Flexibility	Retains flexibility from -60 to 350 (F)

Shelf Life Details	Storage: Store under normal conditions of 70°F (21°C) and 50% R.H. in the original carton., Store under normal conditions of 70°F (21°C) and 50% R.H. in the original carton.
Shelf Life Temperature (°F)	70, 70
Shelf Life Type	From date of manufacture, From date of manufacture
Shelf Life (mon)	12, 24