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Neopreno

Neoprene type GN

Pre-crosslinked (precrosslinked) polychloroprene grade with high raw Mooney viscosity (ML 1+4 at 100 °C: 100-120 MU). Its partially crosslinked green structure provides greater resistance to extrusion and lower permanent compression set. Preferred for high-performance seals, gaskets requiring low compression set and extruded profiles that must hold their shape under sustained load.

What you need to know

  • Pre-crosslinked (precrosslinked) polychloroprene grade with high raw Mooney viscosity (ML 1+4 at 100 °C: 100-120 MU).
  • Its partially crosslinked green structure provides greater resistance to extrusion and lower permanent compression set.
  • Preferred for high-performance seals, gaskets requiring low compression set and extruded profiles that must hold their shape under sustained load.

Full definition

Neoprene type GN is a specialized grade of polychloroprene known for its pre-crosslinked structure which enhances its performance characteristics in various industrial applications. This material exhibits a high raw Mooney viscosity, typically measured at ML 1+4 at 100 °C, ranging from 100 to 120 Mooney Units (MU). The pre-crosslinked state of Neoprene type GN contributes to its unique properties, such as improved resistance to extrusion, which is crucial in applications where the material is subjected to high shear or pressure. Additionally, it offers a lower permanent compression set, making it an ideal choice for seals and gaskets that require minimal deformation under sustained loads.

The structure of Neoprene type GN, characterized by its partially crosslinked green matrix, provides enhanced durability and longevity in demanding environments. This makes it particularly suitable for high-performance applications where maintaining shape and sealing integrity is critical. The lower compression set means that gaskets made from this material can retain their shape and sealing capacity over time, reducing the need for frequent replacements and maintenance.

In industrial settings, Neoprene type GN is often used in environments where exposure to oils, chemicals, and varying temperatures is common. Its versatility allows it to be molded into various shapes and profiles, accommodating a wide range of applications from automotive components to industrial machinery. As industries continue to seek materials that offer both performance and reliability, Neoprene type GN stands out as a robust option for engineers and procurement managers alike.

What you need to know

  • What you need to know: Neoprene type GN has a Mooney viscosity of 100-120 MU at 100 °C, indicating its high viscosity and processing characteristics.
  • The material is pre-crosslinked, providing superior resistance to extrusion and maintaining shape under stress.
  • It exhibits a lower permanent compression set compared to non-crosslinked alternatives, making it ideal for seals and gaskets.
  • Neoprene type GN is suitable for applications involving exposure to oils, chemicals, and fluctuating temperatures.

Industrial applications

  • 1Used in automotive seals that require a tight fit and resistance to oil and fuel exposure.
  • 2Ideal for gaskets in industrial machinery where maintaining a seal under pressure is crucial.
  • 3Applied in the manufacturing of extruded profiles that need to withstand high loads without deforming.

Common mistakes

  • Assuming all neoprene grades have the same properties; variations in formulation can lead to performance differences.
  • Neglecting to account for temperature and chemical exposure when selecting neoprene type for a specific application.
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Pro tip

When selecting neoprene for your application, always consider the specific environmental conditions and mechanical demands to ensure optimal performance.

Technical standards

  • ASTM D2000 - Standard Classification System for Rubber Products in Automotive Applications, which provides guidelines for neoprene material specifications.

Suppliers of neoprene in Mexico