| General purpose and fast-curing transparent epoxy adhesive | ASTM D1003 | Light transmittance (visible light):≥ 90% | Temperature range:-40°C to 100°C (long-term) | Components and mixing ratio:Two components, commonly in a 1:1 or 2:1 ratio. | Operating time (25°C):High transparency type: 30-60 minutes;Quick-setting type: 5-15 minutes |
| Haze: ≤ 1.5% | Yellowing resistance (QUV-A): High transparency type: Average; Fast-setting type: May yellow faster. | Environmental friendliness: 100% solids content, solvent-free | Initial setting time (25°C): High transparency type: 4-8 hours; Fast setting type: 30-90 minutes |
| Tensile shear strength: 15 – 25 MPa (for glass/metal) | Chemical resistance: Good resistance to water and chemicals. | | Complete curing: 24-72 hours (or accelerated by heating) |
| Shore hardness: 75-85 Shore D (high transparency type); similar or slightly lower (fast-setting type) | | | |
| Aging-resistant and temperature-resistant transparent epoxy adhesive | | Light transmittance:≥ 92% | Yellowing resistance (QUV-A):Ultra-low yellowing variant: ΔYI < 1.5 (500h)High temperature resistant type: Excellent | Special characteristics:The ultra-low yellowing type contains advanced UV stabilizers; the high-temperature resistant type uses a special heat-resistant resin system. | Operation time:30-50 minutes |
| Haze: ≤ 1.0% | Long-term temperature resistance: Ultra-low yellowing type: -40°C to 120°C; High temperature type: -50°C to 150°C (long-term), short-term 180°C. | | Curing conditions: Some high-temperature resistant models may require heating and curing to achieve optimal performance. |
| Tensile shear strength: 18 – 28 MPa | Resistance to thermal shock: Excellent | | |
| Shore hardness: 80 – 90 Shore D (high-temperature resistant types are usually harder) | | | |
| ASTM D1003 | Light transmittance:Flexible type: ≥ 90%;Optical grade: ≥ 99% | Temperature resistance:Depending on the model, it covers a temperature range of -60°C to 120°C. | purity:Optical gradeIt has extremely high chemical purity and low ion content. | Operation time:30-60 minutes |
| Haze: Flexible type: ≤ 2.0%; Optical grade: ≤ 0.2% | Resistance to yellowing: Excellent, especially optical grade. | Environmental friendliness: Solvent-free | Curing shrinkage: Extremely low for optical grade, preventing lens deformation. |
| Elongation at break: Flexible type: ≥ 50% – 150%; Optical grade: Brittle | Internal stress: Extremely low for flexible applications, low for optical applications | | Construction environment: Optical-grade materials have extremely stringent requirements for cleanliness and bubble control. |
| Refractive index: Optical grade: 1.50 – 1.55 (custom matching available) | | | |
