o-rings and seals

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Centennial, Colorado 80112
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Zalak® O-Rings and Seals

DuPont Authorized Distributor for Kalrez and Zalak o-rings and seals

Photovoltaic Solutions To Boost Solar Cell Efficiency

Zalak 5300 seals are specially formulated for use in plasma environments, such as edge isolation, ARC coating in crystalline cell manufacturing

Photovoltaic Energy is the science of converting light into electrical energy, and is achieved through the use of semiconductors, or photovoltaic solar cells. The cell assemblies are encapsulated into water tight modules for protection from moisture and impact. The resulting assembly is referred to as a solar panel or module. The principle components of a crystalline silicon photovoltaic module are the glass glazing, cross-linked ethylene-vinyl acetate (EVA) encapsulant, the silicon wafers and associated wiring, a protective backsheet, and a junction box.

Zalak high performance seals

DuPont™ Zalak seals joined the Kalrez perfluoroelastomer product line in 2010 as a cost-effective alternative in select applications where traditional sealing materials are insufficient. Zalak 5300 seals are specially formulated for use in plasma environments, such as edge isolation, ARC coating in crystalline cell manufacturing, TCO sputtering deposition, and selective a-Si PECVD applications in PV cell manufacturing. Zalak seals are only sold through certified distributors, such as Problem Solving Products.

As PV manufacturers use more aggressive and efficient chemicals, such as nitrogen trifluoride (NF3), and oxygen (O2) plasma to increase uptime and improve output, more strain is placed on the manufacturing process. Materials traditionally used in PV manufacturing, like silicone, fluorosilicone, and standard fluoroelastomers can degrade quickly in harsh conditions causing unplanned maintenance due to incompatible sealing materials.

Zalak 5300 is less likely to erode in aggressive plasmas than standard fluoroelastomers or silicones.

In addition to its excellent plasma resistance, Zalak 5300 seals offer:

  • good resistance to "dry" process chemistry
  • excellent compression set properties
  • low stiction (sticking)
  • very low particle generation

For static and low-sealing force applications, like chamber lid seals and gas inlet seals, Zalak 5300 seals are an excellent upgrade from standard sealing materials. Contact Problem Solving Products, Inc. for the availability of sealing shapes or sizes.

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