A formulation has been developed for a glass-fibre-filled moulding compound based on a composite of unsaturated polyester resin and α,ω-bis(vinyldimethyl) polydimethylsiloxane, articles of which possess increased surface water repellency. In the course of tracking and erosion resistance tests after surface hydrophilisation, it was shown that the developed materials possess properties of self-recovery of water repellency.
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