A method of coating a roofing material is described. The method comprises providing an aqueous roof coating composition comprising an inorganic binder material, a chemical curing agent, inorganic particulate filler; applying the aqueous roof coating composition to an inorganic roofing material; and allowing the aqueous roof coating composition to dry and chemically curing agent. The roof coating composition has a total solar reflectance of at least 0.7 after allowing the aqueous roof coating composition to dry and chemically cure. Also described are aqueous roof coating compositions and inorganic (e.g. roofing) materials comprising a surface coating having a total solar reflectance of at least 0.7; wherein the surface coating comprises silicate, a chemical curing agent; and inorganic particulate filler.

A method of coating a roofing material is described. The method comprises providing an aqueous roof coating composition comprising an inorganic binder material, a chemical curing agent, inorganic particulate filler; applying the aqueous roof coating composition to an inorganic roofing material; and allowing the aqueous roof coating composition to dry and chemically curing agent. The roof coating composition has a total solar reflectance of at least 0.7 after allowing the aqueous roof coating composition to dry and chemically cure. Also described are aqueous roof coating compositions and inorganic (e.g. roofing) materials comprising a surface coating having a total solar reflectance of at least 0.7; wherein the surface coating comprises silicate, a chemical curing agent; and inorganic particulate filler.

The present invention relates to an alkali metal silicate coating formed from alkali metal silicate represented by the chemical formula M.sub.2O.nSiO.sub.2 and lithium silicate represented by the chemical formula Li.sub.2O.mSiO.sub.2, wherein M is selected from sodium, potassium, or a mixture thereof, n is from 2.9 to 3.7, m is from 4.2 to 4.8, and the molar ratio of M.sub.2O.nSiO.sub.2 to Li.sub.2O.mSiO.sub.2 is from 2.2 to 4.8; wherein the alkali metal silicate coating has a thickness of from 630 to 1,450 mg/m.sup.2, preferably from 700 to 1,400 mg/m.sup.2, in terms of SiO.sub.2 as measured by fluorescent X-ray spectrometry. The present invention further relates to a preparation method of the coating. The coating of the present invention has excellent heat resistance, hot water resistance and stain resistance, as well as excellent damage resistance.

The present invention relates to an alkali metal silicate coating formed from alkali metal silicate represented by the chemical formula M.sub.2O.nSiO.sub.2 and lithium silicate represented by the chemical formula Li.sub.2O.mSiO.sub.2, wherein M is selected from sodium, potassium, or a mixture thereof, n is from 2.9 to 3.7, m is from 4.2 to 4.8, and the molar ratio of M.sub.2O.nSiO.sub.2 to Li.sub.2O.mSiO.sub.2 is from 2.2 to 4.8; wherein the alkali metal silicate coating has a thickness of from 630 to 1,450 mg/m.sup.2, preferably from 700 to 1,400 mg/m.sup.2, in terms of SiO.sub.2 as measured by fluorescent X-ray spectrometry. The present invention further relates to a preparation method of the coating. The coating of the present invention has excellent heat resistance, hot water resistance and stain resistance, as well as excellent damage resistance.

An insulation film composition for a grain-oriented electrical steel sheet according to an exemplary embodiment of the present invention includes 10-50 parts by weight of metal silicate or organic silicate, 20-70 parts by weight of inorganic nanoparticles and 0.1-20 parts by weight of cobalt hydroxide. The insulation film composition can further include 10-50 parts by weight of metal phosphate, and/or 5-30 parts by weight of inorganic nanoparticles having a particle diameter of 1 nm to less than 10 nm, and/or inorganic nanoparticles having a particle diameter of 10 to 100 nm and/or 0.1-20 parts by weight of chromium oxide.

Disclosed herein is a thermal and/or fire resistant panel comprising: a panel body comprising a fire resistant composition, wherein the fire resistant composition comprises: a silane cross-linked hybrid inorganic polymer; and a siloxane.

Disclosed herein is a thermal and/or fire resistant panel comprising: a panel body comprising a fire resistant composition, wherein the fire resistant composition comprises: a silane cross-linked hybrid inorganic polymer; and a siloxane.

Disclosed herein is a thermal and/or fire resistant panel comprising: a panel body comprising a fire resistant composition, wherein the fire resistant composition comprises: a silane cross-linked hybrid inorganic polymer; and a siloxane.

Disclosed herein is a thermal and/or fire resistant panel comprising: a panel body comprising a fire resistant composition, wherein the fire resistant composition comprises: a silane cross-linked hybrid inorganic polymer; and a siloxane.

A film including: an organic polymeric substrate having a first major surface and a second major surface; an optional acrylic hardcoat layer disposed on the first major surface of the substrate; a siliceous primer layer disposed on the organic polymeric substrate or on the optional acrylic hardcoat layer, wherein the siliceous primer layer includes silica nanoparticles modified by an organic silane; and a superhydrophilic surface layer disposed on the siliceous primer layer, wherein the superhydrophilic surface layer includes hydrophilic-functional groups.