Epoxy Calculator for Polycarbonate Sheet
Here's a table summarizing key information about using epoxy to bond polycarbonate sheets:
| Aspect | Details |
|---|---|
| Recommended Epoxy Types | • Two-part epoxy adhesives • UV-curable adhesives (400-420nm wavelength) • Structural acrylic adhesives |
| Surface Preparation | • Generally bondable "as received" • Clean with isopropanol if needed (avoid acetone) |
| Curing Time | • Initial cure: 24 hours for solid, touchable surface • Full cure: 72 hours for normal use |
| Temperature Effects | • Ideal curing temperature: 72°F (22°C) • Every 10°C increase halves cure time |
| Strength | • Lap shear strength varies by product (see manufacturer data) • Bond often stronger than polycarbonate itself |
| Considerations | • Avoid stress cracking by using fully mixed/cured adhesive • Choose clear, non-yellowing formulations for transparency • Some epoxies may yellow slightly over time in thick layers |
| Application Tips | • Apply in thin, even layers • Work within the epoxy's open time • Avoid excess adhesive to prevent stress cracking |
| Environmental Resistance | • Many epoxies offer good resistance to moisture and chemicals |
| Compatibility | • Can bond polycarbonate to itself or other materials • Check compatibility for specific formulations |
Remember to always consult the manufacturer's specific product data and instructions for the epoxy you choose, as properties can vary between formulations.