A polymer-sheathed multi-filamentary strand for use in braided covers for wiring harnesses intended for use in challenging embodiments comprises a core of glass filaments wrapped in an aramid yarn, and sheathed in a siloxane-modified polyetherimide polymer. Shielding against electromagnetic interference may also be provided.

The heat resistant separation fabric for use as tool cover in glass processing comprises heat resistant yarns (100). The heat resistant yarns comprise a core (110) and at least one wrap yarn (123, 125). The core is a core yarn. The core yarn is a multifilament glass yarn. The at least one wrap yarns (123, 125) comprises stainless steel fibers. The core yarn is present in the heat resistant yarn without crimp. The at least one wrap yarn is wrapped around the core yarn.

The present invention relates to a retroreflective, elongated, filamentous product, comprising a core of non-metallic filamentous material; a first polymer matrix layer comprising a polymer resin, located around an outer peripheral surface of, and penetrating into, the core of non/metallic filamentous material; a reflective material located on an outer peripheral surface of said first polymer matrix layer; a second polymer matrix layer comprising a polymer resin, forming a primer layer on top of said reflective material; and a plurality of refractive microparticles distributed in said second polymer matrix primer layer, wherein said plurality of refractive microparticles is partially embedded in said second polymer matrix primer layer. A process for making the product and uses thereof are also disclosed.

A composite yarn. The composite yarn has a glass core having a linear weight ranging between 50 to 400 deniers and composing from 15 to 60% of a total linear weight of the composite yarn. The composite yarn has a sheath surrounding the glass core, where the sheath is constituted at least of fibers of meta-aramid. The sheath constitutes a remainder of the total linear weight of the composite yarn. The composite yarn has a yarn count between 10 tex and 80 tex.