GAR-DUR® Bonding
A Material So Advanced…
It Will Outperform Metal at a Fraction of the Cost.
Criteria for Adhesive Selection
In selecting the best adhesive system for boarding Gar-Dur® polymer in a particular application, the following important criteria must be considered:
- Type, severity and duration of stress and environment to which the bonded joint will be subjected.
- Size and shape of the joint.
- Substrate to which the Gar-Dur® polymer will be bonded.
- Time, temperature and pressure conditions available for producing a satisfactory bond.
- Availability of bonding equipment.
- Cost.
Bonding
Use two part epoxy cement or neoprene based cement.
- Clean both surfaces well – such as with alcohol to eliminate even fingerprint oil.
- Roughen both surfaces – one side of the plastic and one side of whatever you are going to adhere to.
- Oxidize the surface of the plastic with an open flame; such as a hand held Benzomatic torch – just a couple of quick passes – do not blister the material.
- Apply adhesive to both surfaces – allow to dry until it becomes tacky.
- ress pieces together and clamp lightly – allow to sit overnight.
Product Safety
Products cited herein may be considered hazardous under the U.S. Occupational Safety and Health Act and Regulations promulgated thereunder, including the hazardous Standard of November 25, 1983. Material Safety Data Sheets should be obtained prior to use of these products and users’ employees informed of their contents.
TABLE I | ||
Nominal Lap Shear Values at 73°F for Adhesives Bonding Gar-Dur® UHMW Polymer to Cold-Rolled Steel | ||
Adhesive Designation | Adhesive Type | Nominal Lap Shear Value Range, (a) psi |
Bostik 7087 | Epoxy | 650-750 |
EA 9450 | Epoxy | 700-750 |
EA 9412 | Epoxy | 650-700 |
Tra-Bond 2143D | Polyimide/Epoxy | 700-750 |
Bostik 7241 | Polyester base + isocyanate curing agent | 700-750 |
Bostik 7133 | Urethane base + isocyanate curing agent | 700-750 |
Plastilock 601 | Rubber/phenolic | 450-500 (b) |
Scotch Grip 4693 | Elastomer solution, contact | 40-65 (b) |
(a) All specimens were tested using a crosshead speed of 2 in./min. unless otherwise noted. (b) Tested using a crosshead speed of 0.5 in./min. |
TABLE II | |
Manufacturers of Adhesive Bonding Systems | |
Adhesive Designation | Manufacturer |
Bostik 7087 Bostik 7133 | Bostik Corp. Chemical Division Middleton, MA 01949 |
Tra-Bond 2143D | Tra-Con Inc. Resin Systems Division Medford, MA 02155 |
EA 9412 EA 9460 | Dexter Corp. Hysol Division Olean, NY 14760 |
Plastilock 601 | B.F. Goodrich Company Adhesive Products Division Akron, OH 44309 |
Scotch Grip 4693 | 3M Company Adhesives, Coatings & Sealers Division St. Paul, MN 55101 |
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