CELSTRAN PP-GF40-05 PP 
Material code according to ISO 1043-1: PP

Heat stabilized polypropylene reinforced with 40 weight percent long
glass fibers with enhanced impact properties.. The fibers are chemically coupled to the polypropylene
matrix. The pellets are cylindrical and normally as well as the
embedded fibers 10 mm long.

Parts molded of CELSTRAN have outstanding mechanical properties such
as high strength and stiffness combined with high heat deflection.
The notched impact strength is increased at elevated and low
temperatures due to the fiber skeleton built in the parts. The long
fiber reinforcement reduces creep significantly.

The very isotropic shrinkage in the molded parts minimizes the
warpage.

Complex parts can be manufactured with high reproducibility by
injection molding.

Celstran long fiber reinforced thermoplastics (LFRT) are produced by pultrusion technology in which the long fibers are fully impregnated thus delivering optimal reinforcement to the plastic matrix. Unlike conventional short-fiber reinforced materials, the longer fibers present in molded parts of Celstran LFRT mechanically interact with each other to form an internal glass fiber “skeleton” that limits anisotropic shrinkage and greatly reduces warpage.

The LFRT technology is not just limited to glass. It may employ glass fibers, stainless steel, carbon, aramid or other reinforcing fibers to deliver the property balance required for a wide range of demanding uses. Stainless steel fibers can be used to make components conductive for static dissipation or EMI/RFI shielding, and carbon fiber or aramid fiber reinforcements can provide materials of even lower density than those reinforced with glass fibers. Hybrid fiber compositions are also available. Many different polymer feedstocks, from polypropylene and nylon to polyurethane, are used in this versatile technology.

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