CONAPOXY AD-1146
Harmonization Code : 3919.10.80 | Other self-adhesive plastic rolls not exceeding 20 cm wide.
Main features
- Heat-Cured Polyurethane Adhesive Primer
- 1,500 to 2,750 cP Viscosity Range
- 0.5 to 1.5 MIL Dry-Film Target
Product Description
CONAP AD-1146 Adhesive Primer is a solvent-borne, heat-cured primer used to prepare supported substrates for bonding with liquid polyurethanes during cure. The primer can be applied by spray, roller coating, doctor blade, or brushing. Typical viscosity is 1,500-2,750 cP at 25 deg C, solids content is 23.0-25.0%, and thermal activation is used before polyurethane application. Documented applications include metal priming, glass and glass-fiber laminates, and wood and leather. Surface cleanliness, solvent removal, primer thickness, and thermal activation are central to the documented AD-1146 process.
Key features
- Processing window: Solvent-borne, heat-cured primer for bonding liquid polyurethanes to supported substrates.
- Flow and dispensing: Typical 1,500-2,750 cP viscosity at 25 deg C with 23.0-25.0% solids.
- Key characteristic: Documented 0.5-1.5 mil dry-film target with 82-93 deg C activation for 1-2 hours.
Applications
- Metal priming
- Glass and glass-fiber laminates
- Wood and leather
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Thermal Properties
Additional Information
Surface Treatments
Heat-activated primer for bonding liquid polyurethanes
CONAP AD-1146 is a solvent-borne, heat-cured primer used to prepare supported substrates for bonding with liquid polyurethanes during cure. The primer can be applied by spray, roller coating, doctor blade, or brushing. Typical viscosity is 1,500-2,750 cP at 25 deg C, solids content is 23.0-25.0%, and thermal activation is used before polyurethane application.
As supplied
Typical material properties
The table is limited to the base CONAP AD-1146 primer and does not substitute values from AD-1146-C or AD-1146-C-1.
| Property | CONAP AD-1146 value | Condition / method |
|---|---|---|
| Viscosity | 1,500-2,750 cP | 25 deg C / 77 F |
| Solids content | 23.0-25.0% | 1 g, 3 h, 105 deg C |
| Pounds per gallon | 7.50 | 25 deg C / 77 F |
| Appearance | Amber | As supplied |
| Volatile organic content | 5.7 lb/gal | ASTM D3960 |
| Flash point | 10 deg C / 50 F | ASTM D93 |
These are typical values and not specification limits.
Processing
Apply, dry, activate, then introduce the polyurethane
Surface cleanliness, solvent removal, primer thickness, and thermal activation are central to the documented AD-1146 process.
- Prepare surfaces so they are free of moisture, dirt, rust, chemicals, and mold release. Sandblasting, etching, or degreasing may be used as appropriate.
- Apply one or two coats of AD-1146 by soft brush, spray, roller coating, or doctor blade. Allow 30 minutes air dry between coats and at least 1 hour after the final coat.
- For spray application, one part AD-1146 may be diluted with up to two parts CONAP S-1 Solvent.
- Before applying polyurethane, activate the primer by baking at 82-93 deg C (180-200 F) for 1-2 hours.
- For optimum results, use a dry-film thickness of 0.5-1.5 mil; film thickness should not be below 0.5 mil.
Storage and handling
Store cool, dry, sealed, and out of direct sunlight
Store below 25 deg C (77 F) in a dry, controlled environment out of direct sunlight. Keep containers tightly sealed to minimize evaporation.
A 12-month suitability period from date of shipment applies when stored under the recommended conditions in original sealed containers. Mix the product thoroughly before use.
Technical guidance
Control cleanliness, residual solvent, and dry-film thickness
Bond quality depends on preparation of the actual substrate and complete solvent removal from the primer film.
Clean the substrate
Remove moisture, dirt, rust, chemicals, and mold release before applying the primer. Select sanding, etching, or degreasing for the actual substrate.
Remove residual solvent
Allow the specified air-dry periods. A 30-minute period at 70 deg C is identified for solvent evaporation from the primer film.
Control film thickness
Target 0.5-1.5 mil dry film and do not apply a dry film thinner than 0.5 mil.
Applications
Supported applications
Use the documented application scope below as the starting point for product evaluation.
Metal priming
Primer for supported metals including aluminum alloys, magnesium, iron, and steel before bonding with liquid polyurethanes.
Glass and glass-fiber laminates
Surface treatment for glass and glass-fiber laminate substrates before liquid-polyurethane bonding.
Wood and leather
Primer use on supported organic substrates such as wood and leather before liquid-polyurethane bonding.
Technical support for CONAP AD-1146 Adhesive Primer
Need help evaluating AD-1146 for a particular substrate, surface-preparation route, spray dilution, dry-film target, or heat-activation step? Krayden can help review the substrate condition, primer application method, drying sequence, activation temperature, and downstream polyurethane process before trials are run on the intended assembly.
