Applications

H.B. Fuller 1527 Silicone Sealant for PV Modules

  • Technology: Silicone, one-component, moisture-cure
  • Brand Name: H.B. Fuller 1527 Silicone Sealant for PV Modules
  • Manufacturer: H.B. Fuller
  • Package Size: 310ml, 400ml, 600ml, 235kg drum
  • Shelf Life: 12 months

1. Product Overview

1527 Silicone Sealant is a high-quality, one-component adhesive based on silicone polymer. It cures by reacting with moisture, forming an elastic product. This sealant provides excellent thermal performance, UV resistance, and electrical insulation properties. It is UL-certified and suitable for applications requiring durability in extreme environmental conditions.


2. Applications

  • Sealing side frames of solar cells
  • Sealing solar energy lamps
  • Adhesive for junction boxes in solar modules
  • Provides insulation and protection against moisture, heat, and UV exposure

3. Typical Properties

Before Curing (Unmixed State)

Property Value Test Method
Appearance Black paste
Viscosity @ 25°C White paste
Density (g/cm³) 1.37
Flash Point (°C) >6 ISO 3679, GB/T 5208
Cure Speed (2mm depth) 24 hours @ 23°C, 50% RH

After Curing (Cured Mechanical Properties)

Property Value Test Method
Hardness (Shore A) 48 ISO 7619, GB/T 531
Elongation at Break (%) 300 ISO 37, GB/T 528
Tensile Strength (MPa) 2.3 ISO 37, GB/T 528
Adhesion Strength (MPa) 1.8 ISO 4587, GB/T 7124

Aging Properties (Damp-Heat at 85°C, 85% RH for 1000 hours)

Property Value Test Method
Elongation at Break (%) 320 ISO 37, GB/T 528
Tensile Strength (MPa) 1.6 ISO 37, GB/T 528

Electrical Properties

Property Value Test Method
Volume Resistivity (Ω·cm) 1.0 × 10¹⁵ IEC 60093, GB/T 1692
Breakdown Voltage (kV/mm) 20 IEC 60243-1

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