1. Catalogs
  2. Hexcel Composites
  3. Redux epoxy film adhesive

Redux epoxy film adhesive

Redux epoxy film adhesive

Redux epoxy film adhesive

Product catalog summary
Description
Redux® 308 is a high-strength epoxy film adhesive that cures at 340°F, suitable for structural bonding applications such as metal-to-metal bonding and sandwich constructions, withstanding temperatures up to 250°F.

Features
  • Cures at 340°F
  • Good structural performance up to 250°F
  • Excellent environmental resistance
  • Superior aging performance
  • Low volatile content

Applications
  • Metal to metal bonding
  • Structural sandwich constructions

Forms
Available as a black unsupported epoxy film with paper release backing and polyethylene interleaving.

Instructions For Use
  • Ensure substrates are contamination-free and ideally pretreated.
  • Use Redux® 108 for surface protection if bonding is delayed.
  • Warm adhesive to room temperature before use.
  • Cut, position, and apply pressure during curing.

Curing
Cure at 340°F ±5°F for 60 minutes with pressures of 25-50 psi. Allow components to cool below 160°F before releasing pressure.

Mechanical Properties
Performance values are based on laboratory conditions and should not be considered specification minima. Typical strengths include:
  • Lap Shear Strength: 6800 psi at 70°F
  • Bell Peel: 27 lbs/in at 70°F
  • Climbing Drum Peel: 52 in-lb/3in at 70°F
  • Flatwise Tensile: 1160 psi at 70°F

Storage
  • Store at room temperature on a horizontal mandrel.
  • Use water vapor barrier packaging when refrigerated.
  • 18 months storage life at -0°F, plus 3 months open life below 80°F.

Volatile Content
Very low volatile content, typically below 1% with negligible weight loss during curing.

Handling and Safety
Redux® 308 is safe to handle with protective coverings and is virtually tack-free at room temperature. Follow standard precautions for synthetic resins.

Release Certification
Hexcel Composites Duxford is ISO 9001 certified, with approvals from the UK Civil Aviation Authority and Ministry of Defense. Certificates of Conformity and Test Reports are available on request.

Important
Technical data is accurate as of the document's preparation date. Performance values are representative but not specification minima. Obligations are defined in Hexcel's contract or standard Terms and Conditions of Sale.

Contact Information
For US inquiries, call 1-800-688-7734. For global contacts, visit Hexcel's website.
See more

Catalog excerpts

Redux epoxy film adhesive-1

® Redux 308 Modified epoxy film adhesive Description Product Data Redux® 308 is a high-strength film adhesive curing at 340°F. It is suitable for a wide range of structural bonding applications including metal to metal bonding and sandwich constructions, where operating temperatures of up to 250°F may be experienced. Features Cures at 340°F Good structural performance and service temperatures up to 250°F Excellent environmental resistance Superior aging performance for continuous operations up to 250°F Low volatile content (solventless process) Applications Metal to metal bonding Structural sandwich constructions Forms Black unsupported epoxy film with a paper release backing and a polyethylene interleaving. Product Description Areal Weight psf Roll Width in. Standard Roll ft2 Redux® 308 0.06 39 540 Instructions For Use Pretreatment It is essential that all substrates to be used are free of contamination and are in as ideal a state for bonding as possible. As pretreatment varies significantly depending on the substrates used, please refer to the Hexcel publication, Redux® Bonding Technology, for optimum procedures. If there is to be a delay between the pretreatment and bonding of aluminum, the pretreated surface should be protected with Redux® 108 surface pretreatment protection solution to conserve the optimum bonding surface. This will enable bonding to be delayed for up to 2 weeks without deterioration of the pretreated surface. The correct application of Redux® 108 should not alter the bonding performance of Redux® 308 (for full application details consult the relevant data sheet). © ® Copyright Hexcel Corporation Redux, Hexcel and the Hexcel logo are registered trademarks of Hexcel Corporation, Stamford, Connecticut

 Open the catalog to page 1
Redux epoxy film adhesive-2

Redux® 308 Product Data Application 1. Allow sufficient time for the adhesive to warm to room temperature (60°F-80°F) before removing the protective polyethylene. 2. Cut the film to the shape and size required. 3. Remove the release paper and position the adhesive on the prepared bonding surface. 4. Remove the polyethylene backing sheet. 5. Complete the joint assembly and apply pressure while the adhesive is being cured. For sandwich structures the pressure application should be selected to suit the type of core used. After the adhesive has cured it is advisable to maintain pressure on the...

 Open the catalog to page 2
Redux epoxy film adhesive-3

Modified epoxy film adhesive Redux® 308 has been formulated for maximum storage life consistent with Its high performance. Certain precautions, however, will help to enhance that storage life as follows: 1. When stored at room temperature (less than 80°F) it should be kept on a horizontal mandrel passed through the tube core on which the roll Is wound. This avoids the risk of local thinning of the film under the weight of the roll. 2. When storing under refrigeration the original packaging should be retained if possible. When returning to the refrigerator after use, It is essential to protect...

 Open the catalog to page 3
Redux epoxy film adhesive-4

Redux® 308 Product Data Release Certification The Quality System at Hexcel Composites Duxford has been certified to ISO 9001 by Lloyd’s Register Quality Assurance, and is approved by the UK Civil Aviation Authority and Ministry of Defense. Certificates of Conformity and Test Reports can be issued for batches of Redux® 308 on request. Important Hexcel Corporation believes, in good faith, that the technical data and other information provided herein is materially accurate as of the date this document is prepared. Hexcel reserves the right to modify such information at any time. The performance...

 Open the catalog to page 4
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.