Application & Research

Preparation and Performance Study of Epoxy-silicone Hybrid Stain-resistant Coatings

  • CHEN Xiangquan ,
  • PENG Longgui ,
  • ZHANG Ming ,
  • YANG Chaoqun ,
  • CHEN Dong
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  • 1. Xi'an University of Science and Technology,Xi'an 710054,China;

    2. Chengdu Guibao Science & Technology Co., Ltd., Chengdu 610000,China

Online published: 2026-04-01

Abstract

[Objective] This study aims to meet the comprehensive performance requirements ofexterior wall coatings for building facade decoration,including elasticity,weather resistance,low-temperature toughness,and stain resistance.[Methods]A low-viscosity,high-strength epoxy-silicone hybrid elasticstain resistance coating was prepared using polydimethylsiloxane as the base polymer. A liquid epoxy resin-silane copolymer was introduced to improve the strength of the silicone matrix,along with a small amount of fumed silica,additives and solvents.[Results]The prepared coating exhibited a viscosity of 3 610 mPa·s,a tensile strength of 3. 4 MPa,an elongation at break of 172%,an impact resistance of 50 cm,and a wear resistance of 0. 016 g(500 g,500 r). The stain resistance grade reached level 1.[Conclusion]The preparedepoxy-silicone hybrid stain-resistant coating demonstrates excellent comprehensive performance,and holds broad application prospects in building exterior and related fields.

Cite this article

CHEN Xiangquan , PENG Longgui , ZHANG Ming , YANG Chaoqun , CHEN Dong . Preparation and Performance Study of Epoxy-silicone Hybrid Stain-resistant Coatings[J]. Paint & Coatings Industry, 2026 , 56(4) : 62 -67 . DOI: 10.12020/j.issn.0253-4312.2025-309

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