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Coating ceramic and masonry products

阅读:91发布:2023-10-13

专利汇可以提供Coating ceramic and masonry products专利检索,专利查询,专利分析的服务。并且,下面是Coating ceramic and masonry products专利的具体信息内容。

1. A PROCESS OF COATING A SURFACE OF A SOMEWHAT POROUS MOLDED MASONRY PRODUCT TO FORM A RELATIVELY THIN LAYER BONDED THERETO AND PROVIDED WITH A HARD SMOOTH OUTER SURFACE WHICH COMPRISES IN CONTINUOUS SUCCESSION SPRAYING ON THE PRODUCT SURFACE WHILE SAID SURFACE IS HEATED TO A TEMPERATURE OF THE ORDER OF 125 TO 250* F. A LIGHT MIST COATING OF A LIQUID COMPOSITION INCLUDING A SOLUTION OF A HEAT HARDENABLE THERMO-SETTING RESIN IN A VOLATILE SOLVENT, ALLOWING FOR NO MORE THAN A FEW MINUTES SAID RESIN TO PARTIALLY CURE AND THE SOLVENT IN SAID COMPOSITION TO EVAPORATE TO FORM A THIN PARTIALLY CURED FILM WHICH SEALS AT LEAST MOST OF THE PORES IN THE PRODUCT SURFACE, IMMEDIATELY THEREAFTER AND WHILE THE SURFACE IS STILL HEATED AND SAID FILM IS ONLY PARTIALLY CURED APPLYING ONTO SAID FILM A HEAVIER COATING OF LIQUID THERMO-SETTING RESIN COMPOSITION COMPATIBLE WITH SAID FILM, AND SUBJECTING THE COATED PRODUCT TO SUFFICIENT HEAT TO PRODUCE A FINAL HARDENING AND BONDING OF THE COMPOSITE COATING.
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