| General-purpose instant adhesive | GB/T 7124 | Viscosity range: 1 – 1500 mPa·s (covering water to paste) | Long-term temperature range: -50°C to 80°C | Main component: Cyanoacrylate | Positioning time (curing speed): 5 – 60 seconds (affected by material, humidity, and gaps) |
| ASTM D1002 | Tensile shear strength: 15 – 25 MPa (for steel and aluminum) | Resistance to damp heat aging: Generally, the strength will decrease when exposed to high humidity for a long time. | Irritation: Has a characteristic irritating odor; low-odor formulations can significantly improve this. | Full curing time: 8-24 hours to reach final strength. |
| Gap filling capacity: Low-viscosity products rely on capillary action; paste-like products can fill gaps ≤ 0.5 mm. | Chemical resistance: Resistant to non-polar solvents and oils to a reasonable degree, but not resistant to acids, alkalis, and strongly polar solvents. | Whitening phenomenon: May occur, forming a visible white haze on transparent or smooth surfaces. | Application points: Low viscosity is suitable for tightly fitted parts; medium viscosity has the most versatility; paste form is used for vertical surfaces or overhead applications to prevent dripping. |
| Specialty Instant Adhesive for Special Substrates | | Tensile shear strength: 8 – 20 MPa (for certain difficult-to-bond substrates, such as rubber and plastics) | Temperature resistance: -50°C to 80°C | Specialized formula: Contains special accelerators to attack low surface energy materials. | Curing speed: Optimized for specific substrates, may be slightly slower than the general-purpose type to facilitate wetting. |
| Flexibility: The flexible formula has an elongation at break of ≥ 100%, and is impact-resistant and peel-resistant. | Media resistance: exhibits better resistance to certain materials (such as plasticizers). | Albinism: Specialized formulas can usually reduce albinism. | Application Notes: For extremely difficult-to-bond polyolefins (PP/PE), it is still strongly recommended to use them in conjunction with a surface treatment agent (primer). |
| Applicable substrates: Specifically designed for PP, PE, EPDM, foam, wood, etc. | | | |
| High-performance special instant adhesive | | High temperature resistance: Long-term temperature resistance from -50°C to 120°C, short-term temperature resistance up to 150°C. | Resistance to damp heat aging: Excellent, suitable for high humidity, underwater or condensing environments. | Special modification: Improving thermal stability and hydrolysis resistance through chemical structural modification. | Curing speed: Slow-curing formulations offer a setting time of 60-180 seconds, allowing for easy adjustment. |
| Toughness: The high-toughness formula combines instant curing with high flexibility and high peel strength. | Resistance to thermal shock: Excellent performance, able to withstand drastic temperature changes. | Colors: Available in black, white, etc., for light blocking or color matching. | Applicable gap: Can withstand slightly larger bonding gaps. |
| Viscosity: Offers a variety of options from low viscosity to gel type. | | | Application areas: Structural bonding of engine peripherals, outdoor equipment, sanitary products, and precision instruments. |
