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This product is the hydroxyl component of a solvent-based two-component polyurethane adhesive, which can be used in high-performance solar cell backplanes when combined with an isocyanate curing agent. It has excellent adhesion to well-treated PVDF film, PVF film, PE film, PET film, etc., short curing time, high initial strength, and excellent resistance to heat and moisture, passing PCT 96h and DH 3000h tests.
HN-1725B
HUAKE
Adhesive for Solar Cell Backing Plate HN-1725 Series
Principal Properties & Application：
This product is the hydroxyl component of a solvent-based two-component polyurethane adhesive, which can be used in high-performance solar cell backplanes when combined with an isocyanate curing agent. It has excellent adhesion to well-treated PVDF film, PVF film, PE film, PET film, etc., short curing time, high initial strength, and excellent resistance to heat and moisture, passing PCT 96h and DH 3000h tests.
Product Characteristics：
Model | HN-1725 | HN-1725B |
Appearance | Clear transparent viscous liquid | Clear transparent viscous liquid |
Color (Pt-Co) | ≤ 80 | ≤ 80 |
Acid Value (mgKOH/g) | < 1 | < 1 |
Hydroxyl Value (mgKOH/g) | 11-15 | 8-12 |
Solid Content (%) | 50% | 50% |
Viscosity (25℃, mPa.s) | 50-200 | 50-200 |
Main Curing Ratio (based on N3300) | 22/1 | 30/1 |
Recommended Application Process:
Coating Method: Suitable for mainstream coating methods such as mesh coating, scraper, and extrusion.
Oven Temperature: 80-120 °C
Solid Content for Machine: It is recommended to dilute with ethyl acetate to 30-45% solid content for machine use.
Coating Dry Weight: It is recommended 6-10 g/m², dry film thickness 6-10μm.
Curing Conditions: Cure at 50°C for 48 hours or at 35°C for 3-4 days. Adjust and customize according to customer processes.
