Tonsan® 1522 White is a two-component adhesive that can cure quickly at room temperature, providing high bond strength. This material is specifically recommended for use with metals, plastics, and glass, and is particularly suitable for sealing and bonding PV modules.

Product Type: 2K (2 component) Adhesive, Encapsulant

Application Area: Blades, Edge Gluing, Energy Storage, Frame Sealing, Ingot Bonding, Junction Boxes, Lithium-Ion Battery, Module Installation, PV Module Frame Sealing, PV Modules, Rail Bonding, Turbines

Compatible Substrates & Surfaces: Galvanized Steel, Glass, Metal, Plastics

Chemical Family: Silicones

Features: Acid Resistant, Alkali Resistant, Excellent Dielectric Properties, Excellent Elastic Deformation Ability, Excellent Electrical Performance, Fast Cure, Flame Retardant, Good Bonding Strength, Good Weather Fastness, High Temperature Resistance, Low Temperature Resistant, UV Resistant

Technical Data Sheet
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Enhanced TDS

Identification & Functionality

Chemical Family

Features & Benefits

Applications & Uses

Compatible Substrates & Surfaces
Cure Method
Application Instructions
  • Coating surface area should be clean and free of any fluxes, residues, dust or any other contaminants.
  • A specific machine must be used to mix part A and B.
  • The assembly must be completed in the working time.
  • The excess adhesive can be removed after the clean-up time.

Recommended cure:

  • 21 - 25°C, 45 - 55%RH for 7 days


Physical Form
White paste
Component A
ValueUnitsTest Method / Conditions
Extrusion Rate14.0s/20g-
Thermal Properties
ValueUnitsTest Method / Conditions
Thermal Service Range- 50 - 200°C-
Component B
ValueUnitsTest Method / Conditions
Extrusion Rate11.0s/20g-
Cured Mechanical Properties
ValueUnitsTest Method / Conditions
Hardness41.0-GB/T 531, Shore A
Tensile Strength2.4MPaGB/T 528
Elongation at Break200.0%GB/T 528
Lap Shear Strength (Aluminum - Aluminum)1.3MPaGB/T 7124
Tensile Strength (Aluminum - Glass)1.1MPaGB/T 13477
Electrical Properties
ValueUnitsTest Method / Conditions
Volume Resistivity4.0 x 10¹⁴Ω.cmGB/T 1692
Breakdown Strength20.0kV/mmGB/T 1695
Technical Data
ValueUnitsTest Method / Conditions
Mixed Density1.29g/cm³GB/T 13354
Volumetric Mix Ratio10:1--
Weight Mix Ratio12.2:1--
Curing Speed (Gel time)max. 60min-
Shear Strengthmin. 1.2MPa-
Cured Properties
ValueUnitsTest Method / Conditions
Flash Pointmin. 93°CGB/T 5208
Working Time10.0min-
Clean-up Time30.0min-
Damp Heat Aging Test Properties
ValueUnitsTest Method / Conditions
Hardness32.0-GB/T 531, Shore A
Tensile Strength (at 85°C, 85%RH, 1000h)1.8MPaGB/T 528
Elongation at Break (85°C, 85% RH, for 1000h)180.0%GB/T 528
Lap Shear Strength (Aluminum - Aluminum, at 85°C, 85%RH, 1000H)1.0MPaGB/T 7124
Tensile Strength (Aluminum - Glass, H-Bar, at 85°C, 85%RH, 1000h)1.0MPaGB/T 13477
Rheological Properties
ValueUnitsTest Method / Conditions
Viscosity (Resin)Thixotropy--
Viscosity ActivatorThixotropy--
Viscosity (Mixed)Thixotropy--

Packaging & Availability

Country Availability
Regional Availability
  • China
  • North America
  • South East Asia

Storage & Handling

Shelf Life
6 Months
Storage Condition

Product should be stored in a cool, dry area in unopened containers at room temperature. Keep away from children.