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Master Bond adhesives
Evonik VESTAMID® NRG 4901 PA 12  (discontinued **)
Categories: Polymer; Thermoplastic; Nylon (Polyamide PA); Nylon 12 (PA12); Nylon 12, Extrusion/Tubing Grade

Material Notes: VESTAMID® NRG 4901 black offers a flexible, mechanically tough encasement system that combines the advantages of polyethylene coating and cement mortar casing.

Uses of VESTAMID® NRG products: The important advantages of VESTAMID® NRG 4901 as an encasement material are:

  • unusually high impact resistance and toughness, even at low temperatures
  • excellent stress cracking resistance
  • excellent wear resistance
  • low sliding friction coefficient
Product characteristics compared with other encasement materials VESTAMID® NRG 4901 has higher Shore hardness than polyethylene or polypropylene. In contrast to polyethylene or propylene encasement, therefore, the polyamide encasement offers, apart from the corrosion protection provided by the barrier effect, also mechanical protection for the encased steel pipe. Application areas for the new encasement material are found in non-conventional installation technologies such as:
  • horizontal directional drilling
  • the soil displacement method with nonsteered displacement hammers
  • dynamic ramming
  • plow technology
Manufacturer recommends a processing temperature between 230°C (446°F) and 260°C (500°F) – in some cases up to 280°C (536°F) - during the extrusion process. Drying at 80°C (176°F) for 2 hours to 4 hours before processing is recommended.

Information provided by Evonik

Vendors:
Available Properties
  • Density, ISO 1183
  • Hardness, Shore D, ISO 868
  • Ball Indentation Hardness, ISO 2039-1
  • Tensile Strength, Yield, ISO 527
  • Elongation at Break, ISO 527
  • Elongation at Yield, ISO 527
  • Tensile Modulus, ISO 527
  • Charpy Impact Unnotched, ISO 179/1eU
  • Melting Point, ISO 11357
  • Vicat Softening Point, ISO 306, Method A
  
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Manufacturer Notes:
Evonik Corporation (Former Evonik Degussa GmbH)

Category Notes
Plastic
PA, Polyamide

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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