Technical articles In wall putty, mortar, slurry-applied roughening coats, construction adhesives, and coating systems, polyvinyl alcohol is a commonly used water-soluble polymer material. When selecting polyvinyl alcohol, many users encounter a practical question: if they are all polyvinyl alcohol, why does 1788 ...
Updated Jul 20268 min read ✓ Reviewed
Technical articles Most coatings use resin as the continuous phase and typically exhibit high electrical resistance after film formation. For ordinary decorative and protective coatings, this insulating property is not necessarily a problem. However, in applications such as antistatic flooring, electronic-industry ...
Updated Jul 20268 min read ✓ Reviewed
Technical articles Coating lifting refers to a defect that occurs during multi-layer coating application or repainting of old paint films. Solvents, co-solvents, or thinners in the upper coating penetrate into the underlying coating film, causing the lower film to soften, become plasticized, swell, or partially ...
Updated Jun 20268 min read ✓ Reviewed
Technical articles White coatings, light-colored topcoats, and clear varnishes usually show good appearance shortly after application. However, during storage, application, curing, or service, they may gradually develop yellowing, discoloration, brownish-yellow tones, or a deeper amber appearance. These phenomena ...
Updated Jun 20268 min read ✓ Reviewed
Technical articles When problems occur in a coating formulation, it is not enough to look only at the surface symptoms. Issues such as foaming, cratering, sagging, floating and flooding, and poor application appearance can often be improved by adjusting additives, pigments and fillers, solvents, the rheological ...
Updated Jun 20268 min read ✓ Reviewed
Technical articles A waterborne resin is a film-forming resin system that uses water as the primary dispersion medium or dilution medium. It can be used in architectural coatings, wood coatings, industrial coatings, anticorrosive coatings, flooring coatings, packaging coatings, inks, adhesives, and other fields.
Updated Jun 20268 min read ✓ Reviewed
Technical articles Shellac is a natural resin of animal origin prepared from lac resin secreted by lac insects. The resin is collected, washed, melted, filtered, and then processed into sheets or crushed forms. Lac insects live on the branches of specific host trees, and their secretions can be processed into ...
Updated Jun 20268 min read ✓ Reviewed
Technical articles Rosin, commonly referred to in English as rosin or colophony, is a natural resin derived from resin resources of pine and other coniferous trees, with resin acids as its main components. Based on source and production route, industrial rosin is commonly classified into three types.
Updated Jun 20268 min read ✓ Reviewed
Technical articles In coating formulations, resins typically serve functions such as film formation, binding, adhesion, protection, and decoration. In its description of “resin,” the International Union of Pure and Applied Chemistry (IUPAC) notes that the term “resin” was originally used because of ...
Updated Jun 20268 min read ✓ Reviewed
