Alstone India

Solar Silicone Pv Module Sealant

Solar Silicone Pv Module Sealant

Alstone PV module sealant is one-part neutral cure sealant, offering several advantages over acetoxy silicone formulations. It can be used as a composite bonding adhesive for joining glass panels. When cured it has high modulus for a good mechanical assembly of glass panels.

ALSTONE SOLAR SILICONE is the only Indian Company that produces everything from silicone materials to secondary products

ALSTONE SOLAR Corporation built the first silicone monomer productioin facilities in India and succesfully localized raw materials for silicones, which had been imported from other countries. Through the synthesis and application of silicone monomers and polymers, we produce and supply silicone products including sealants, silicone rubber, silanes, silicone oils, silicone emulsions and silicone dispersions for construction and business. In addition, we are committed to helping our customers gain competitive advantage by supplying products that meet their needs though continous R&D technology innovation.

Applications

  • Solar panel bonding
  • PV module bonding
  • Aluminum frame bonding
  • Junction box bonding
  • TPT/TPE back film bonding
  • TPT/TPE back film adhesive sealing

Main Characteristics

  • Non-Corrosive Cure
  • Resistant to Ozone
  • Excellent Weather Resistance
  • Fast Curing
  • Excellent Mechanical Properties
  • Consistent adhesion to aluminum, glass,
  • TPT/TPE back material and junction box plastic PPO/PA.
  • High strength of bond due to its high modulus of elasticity.
  • Flame retardant performance to UL 94 HB

Surface preparation

Ensure that surfaces to be sealed are clean, dry and free from frost. Clean all surfaces of release agents, water repellents, laitance, dust, dirt, old sealants and other contaminants which could impair adhesion. Non-porous surfaces should be cleaned and degreased by wiping with a suitable solvent on an oil- and lint-free cloth before application of sealant.

Note: When using any solvent, always provide adequate ventilation. Avoid heat, sparks and open flames. Observe and follow all precautions listed on the solvent container label.

Shelf life and storage: When stored in cool, dry conditions below 25°C(77°F) in the original unopened containers Alstone solar silicone sealant has a total shelf life of 12 months from the date of production.

Packaging

Sausage: 600ML

Pail: 25KG

Drum: 270KG

Silicone solutions for potting & encapsulation

Silicone potting and encapsulation compounds are used to protect sensitive electronic components and assemblies from environmental hazards like moisture, dust, chemicals, and mechanical shocks. These solutions are vital in extending the life of electronic devices, providing electrical insulation, and preventing short circuits.

What is potting & encapsulation

Potting and encapsulation involve surrounding electronic components with a protective silicone material. Potting typically fills the entire enclosure, while encapsulation creates a shell-like barrier around the components.

Applications

Automotive: Used for protecting engine control units (ECUs), sensors, and lighting systems.

Aerospace: Ideal for safeguarding avionics, connectors, and other critical components exposed to extreme temperatures and pressures.

Medical Devices: Silicone compounds are often employed in medical devices due to their biocompatibility and resistance to sterilization methods.

Industrial Electronics: Provides protection for power supplies, sensors, and communication systems used in industrial automation.

Application: Potting protection for high power, high current solar PV module junction box.

Product feature

1. High thermal conductivity, effectively reduce junction box junction temperature.

2. Stable storage, less likely to sediment. (Enhance the anti-setting property of A component by a unique to improve the stable storage of the product.)

3. Excellent process suitability and ow ability.
6-10: Reasonable, suitable for existing potting equipment.

Benefits of silicone solutions

Thermal Stability: Silicone maintains its properties across a wide temperature range (-50°C to 200°C), making it ideal for use in high-heat environments.

Chemical Resistance: Silicones are resistant to various chemicals, including oils, fuels, and solvents, providing superior protection against corrosion.

Flexibility and Durability: Silicones retain exibility even after curing, which helps absorb mechanical shocks and vibrations, protecting delicate components from damage.

Moisture and Humidity Resistance: Silicone compounds provide excellent waterproong, making them suitable for underwater or high-humidity applications.

Electrical Insulation: High dielectric strength ensures reliable insulation for high-voltage applications, preventing short circuits.

Technical Data Solar silicone

Test Items Unit Range
Appearance / White paste
Density g/cm³ 1.40~1.48
Extrusion rate g/15s 5~17
Tack-free time min 5~15
Hardness Shore A ≥45
Tensile strength MPa 2.2~3.5
Shear strength MPa ≥1.0
Elongation at break % ≥250
Dielectric strength kV/mm ≥18
Volume resistivity Ω·cm ≥0.5×10

RTV Condensation-type potting silicone rubber

Test Items Unit Range
Part A appearance / White Flowing
Part B appearance / Colourless or light yellow transparent liquid
Part A viscosity mPs.s 3500~5000
Part B viscosity mPs.s 30~120
Part A density g/cm³ 1.20~1.30
Part B density g/cm³ 0.92~1.0
Tack-free time min 10~30
Curing time min 30~120
Hardness shore A 30~50
Tensile strength Mpa ≥0.8
Elongation at break % ≥60
Dielectric strength KV/mm ≥18
Volume resistivity Ω.cm ≥1.0x10

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