THIXON® 423 Clear is a vulcanizing adhesive which can be used as a one-coat adhesive or as a covercoat adhesive over THIXON®403/404 adhesive primer for bonding castable polyurethane to various substrates.THIXON®423 can also be used as a one-coat adhesive for bonding thermoplastic polyurethanes to metal. THIXON®423 can also be used as a protective coating for metal, polyurethane, epoxy, polyester and fiberglass compounds. It is a good one-coat system for thermoplastic urethane to metal bonding with better heat resistance that THIXON® 405.
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Identification & Functionality
THIXON® 423 Clear Features & Benefits
Good one-coat system for Thermoplastic Urethane to metal bonding with better heat resistance that THIXON® 405.
Applications & Uses
Mix Instructions
Diluent - PM acetate, or THIXON® 917 solvent blend should be mixed into THIXON® 423 Blue to ensure consistent and uniform coating color.
Application Technique
- Brushing: for brush applications use undiluted. Brush on a heavy wet film of THIXON® 423 without brushing excessively. To obtain the required film thickness, brush on two coats. Dip - For dip applications, dilute 3 parts THIXON® 423 with 1 part diluent. To obtain a film thickness of 1 mil, dip twice.
Drying the Film
Dry the film of THIXON® 423 before continuing. At normal room temperature, dry for 30 to 45 minutes. At lower temperatures, dry longer. The drying time can be shortened by force drying approximately 5 to 10 minutes at 120 to 160°F. Do not dry at temperatures above 180°F.
Molding and Curing
Most molding and curing methods. Use a cure temperature between 190 to 350°F.
Pre-Bake Resistance
For the best results, prebake the coated metals for ½ to 3 hours at 200 to 300°F, depending on the weight of the metal. This product can withstand prebaking in forced air convection ovens, with proper ventilation, for up to 16 hours at 250°F.
Dry Film Stability
Excellent dry film stability. Inserts which have been coated can be stored for several weeks before use, if they are protected from airborne contaminants.
Clean-up
Equipment clean up should be done using recommended dilution solvents.
Properties
Value | Units | Test Method / Conditions | |
Solid Content | 20 - 26 | % | - |
Value | Units | Test Method / Conditions | |
Dry Film Density (Calculated) | 0.95 | - | - |
Value | Units | Test Method / Conditions | |
Volatile Organic Compounds | 611 | kg/m³ | - |
Value | Units | Test Method / Conditions | |
Cup Viscosity | min. 19 | s | - |
Brookfield Viscosity | 0.18 - 0.4 | Pa.s | - |
- [1]: 4mm, 550kPa, 3 days 40°C
Packaging & Availability
Storage & Handling
The shelf life of this material is assured for 24 months (from the date of manufacture) at temperatures below 78°F in an unopened container.