3M Aerospace and Aircraft Maintenance Division 3M™ Scotch-Weld™ Thermoexpandable Adhesive Film AF 3090 TEF

Description
Highly toughened, epoxy-based thermo-foaming film system, co-curable with composite material and designed for edge finish of sandwich panels and complex gap filling. Designed for exterior applications. Highly toughened edge finish core splice for exteriors. Edge finish of sandwich panels. Expansion of the product during cure enables also excellent gap-filling properties, filling of mismatched areas, core splicing or reinforcing honeycomb cores.
Description
Highly toughened, epoxy-based thermo-foaming film system, co-curable with composite material and designed for edge finish of sandwich panels and complex gap filling. Designed for exterior applications. Highly toughened edge finish core splice for exteriors. Edge finish of sandwich panels. Expansion of the product during cure enables also excellent gap-filling properties, filling of mismatched areas, core splicing or reinforcing honeycomb cores.
Datasheet
Datasheet Summary
Powered by GS/AI

3M,Ñ¢ Scotch-Weld,Ñ¢ Thermoexpandable Adhesive Film AF 3090 TEF is a modified epoxy adhesive film designed for bonding metal to metal and composite materials. It cures at temperatures ranging from 250¬8F (120¬8C) to 350¬8F (180¬8C) and exhibits excellent bond strength, impact resistance, and peel strength. The film expands during the curing process, providing effective gap-filling capabilities and making it suitable for applications involving mismatched surfaces, core splicing, and edge-finishing of sandwich structures. The adhesive film is available in two thicknesses: 50 mil (1.27 mm) and 100 mil (2.54 mm), with a typical expansion range of 40-70% at 250¬8F and 60-120% at 350¬8F. It has a non-sag property, making it easy to apply without the risk of dripping or running. The product is also noted for its durability and flexibility, which helps to dampen impact forces and resist cracking. For optimal performance, surfaces should be thoroughly cleaned and prepared prior to application. The film has a suggested shelf life of 12 months when stored at -18¬8C (0¬8F) or below, and it can remain stable at room temperature for up to 20 days under controlled conditions. This product is particularly advantageous for aerospace applications where structural integrity and reliability are critical.

Datasheet Summary
Powered by GS/AI

3M,Ñ¢ Scotch-Weld,Ñ¢ Thermoexpandable Adhesive Film AF 3090 TEF is a modified epoxy adhesive film designed for bonding metal to metal and composite materials. It cures at temperatures ranging from 250¬8F (120¬8C) to 350¬8F (180¬8C) and exhibits excellent bond strength, impact resistance, and peel strength. The film expands during the curing process, providing effective gap-filling capabilities and making it suitable for applications involving mismatched surfaces, core splicing, and edge-finishing of sandwich structures. The adhesive film is available in two thicknesses: 50 mil (1.27 mm) and 100 mil (2.54 mm), with a typical expansion range of 40-70% at 250¬8F and 60-120% at 350¬8F. It has a non-sag property, making it easy to apply without the risk of dripping or running. The product is also noted for its durability and flexibility, which helps to dampen impact forces and resist cracking. For optimal performance, surfaces should be thoroughly cleaned and prepared prior to application. The film has a suggested shelf life of 12 months when stored at -18¬8C (0¬8F) or below, and it can remain stable at room temperature for up to 20 days under controlled conditions. This product is particularly advantageous for aerospace applications where structural integrity and reliability are critical.

Suppliers

Company
Product
Description
Supplier Links
St. Paul, MN, USA
3M™ Scotch-Weld™ Thermoexpandable Adhesive Film
AF 3090 TEF
3M™ Scotch-Weld™ Thermoexpandable Adhesive Film AF 3090 TEF
Highly toughened, epoxy-based thermo-foaming film system, co-curable with composite material and designed for edge finish of sandwich panels and complex gap filling. Designed for exterior applications. Highly toughened edge finish core splice for exteriors. Edge finish of sandwich panels. Expansion of the product during cure enables also excellent gap-filling properties, filling of mismatched areas, core splicing or reinforcing honeycomb cores.

Highly toughened, epoxy-based thermo-foaming film system, co-curable with composite material and designed for edge finish of sandwich panels and complex gap filling.

Designed for exterior applications. Highly toughened edge finish core splice for exteriors. Edge finish of sandwich panels. Expansion of the product during cure enables also excellent gap-filling properties, filling of mismatched areas, core splicing or reinforcing honeycomb cores.

Supplier's Site Datasheet

Technical Specifications

  3M Aerospace and Aircraft Maintenance Division
Product Category Adhesive Tapes
Product Number AF 3090 TEF
Product Name 3M™ Scotch-Weld™ Thermoexpandable Adhesive Film
Type Seaming / Heat Seal; Adhesive Tape; Industrial Tape; Structural Bonding
Color Black
Adhesive Single; Epoxy
Unlock Full Specs
to access all available technical data

Similar Products

Heal seat Tape series - PET9 AC/Color - Oak-Trees, Inc.
Specs
Type Adhesive Tape; Industrial Tape; Cable and Electrical Tape
Backing Polyester; Plastic / Polymer; PET
Adhesive Polyester Type
View Details
Cable Repair Tape - CX4138-000 - TE Connectivity
Specs
Type Adhesive Tape
View Details
Enflon® Pressure Sensistive Tape -  - Pexco
Specs
Type Packaging Tape; Protective; Double Coated and Transfer Tape; Adhesive Tape; Industrial Tape
Features Dielectric / Insulating
Backing Fluoropolymer (Teflon); Plastic / Polymer
View Details
Conductive Aluminum Foil Tape - ALL and ALS Series - Takachi Electronics Enclosure Co., Ltd.
Takachi Electronics Enclosure Co., Ltd.
Specs
Type Foil Tape; Adhesive Tape; Industrial Tape
Features Electrically Conductive / Anti-Static; EMI / RFI Shielding
Backing Metal Foil
View Details