The present application is directed to a two-component waterborne wood sealing primer, including: Component A: a film-forming resin composition including an aqueous epoxy resin emulsion; and Component B: an aqueous curing system including an epoxy reactive curing agent, a filling slurry, and an additional additive; and wherein no organic solvent is added during the preparation process of the two-component waterborne wood sealing primer, and the two-component waterborne wood sealing primer has a solid content during application in the range of 45-50 wt % and a VOC content of 80 g/L or less.

The present application is directed to a two-component waterborne wood sealing primer, including: Component A: a film-forming resin composition including an aqueous epoxy resin emulsion; and Component B: an aqueous curing system including an epoxy reactive curing agent, a filling slurry, and an additional additive; and wherein no organic solvent is added during the preparation process of the two-component waterborne wood sealing primer, and the two-component waterborne wood sealing primer has a solid content during application in the range of 45-50 wt % and a VOC content of 80 g/L or less.

The present invention relates to a method of insulating a motor, comprising: providing a impregnating resin; heating up the motor windings with electricity to 100-120° C., and potting the motor windings with the impregnating resin for 2-5 min at that temperature; heating up the motor windings with electricity to 140-160° C., and trickling the impregnating resin for 3-8 min for insulation; heating up the motor windings with electricity to 165-175° C., and curing for 15-45 min. The method of insulating a motor provided by the present invention has a higher resin filling level and a higher resin utilization rate, as well as faster curing speed.

The present invention relates to a method of insulating a motor, comprising: providing a impregnating resin; heating up the motor windings with electricity to 100-120° C., and potting the motor windings with the impregnating resin for 2-5 min at that temperature; heating up the motor windings with electricity to 140-160° C., and trickling the impregnating resin for 3-8 min for insulation; heating up the motor windings with electricity to 165-175° C., and curing for 15-45 min. The method of insulating a motor provided by the present invention has a higher resin filling level and a higher resin utilization rate, as well as faster curing speed.

A surfacing material that can provide improved UV resistance while providing good surface properties. The surfacing material includes a resin layer formed from a curable resin composition containing: (A) one or more cycloaliphatic epoxy resin(s), each having two or more epoxy groups per molecule; (B) an epoxy-amine adduct having two or more epoxy groups per molecule and obtained by a reaction of (i) an epoxy compound having two or more alicyclic epoxy groups per molecule with (ii) an amine compound having two or more amino groups per molecule; (C) a curing agent and/or a catalyst; (D) ceramic microspheres; and (E) a flow control agent in the form of inorganic particles, which are not ceramic microspheres.

A surfacing material that can provide improved UV resistance while providing good surface properties. The surfacing material includes a resin layer formed from a curable resin composition containing: (A) one or more cycloaliphatic epoxy resin(s), each having two or more epoxy groups per molecule; (B) an epoxy-amine adduct having two or more epoxy groups per molecule and obtained by a reaction of (i) an epoxy compound having two or more alicyclic epoxy groups per molecule with (ii) an amine compound having two or more amino groups per molecule; (C) a curing agent and/or a catalyst; (D) ceramic microspheres; and (E) a flow control agent in the form of inorganic particles, which are not ceramic microspheres.

A floor finishing composition comprises water, polymer of ethylenic unsaturated monomers having a glass transition temperature of at least 90#C as measured using differential scanning calorimetry according to the ASTM Method D3418-15, coalescing solvent, and polyvalent metal crosslinking agent. The ethylenic unsaturated monomers comprise methyl (meth)acrylate, α,β-unsaturated carboxylic acid, aromatic vinyl monomer, and no more than 25% by weight of α,β-unsaturated carboxylic ester of C2-10 alcohol based on total weight of the monomers. The ethylenic unsaturated monomers may comprise from about 14% to about 18% by weight of the α,β-unsaturated carboxylic acid based on total weight of the monomers. The amount of coalescing solvent in the floor finishing composition may be more than 6% by weight based on total weight of the floor finishing composition.

A floor finishing composition comprises water, polymer of ethylenic unsaturated monomers having a glass transition temperature of at least 90#C as measured using differential scanning calorimetry according to the ASTM Method D3418-15, coalescing solvent, and polyvalent metal crosslinking agent. The ethylenic unsaturated monomers comprise methyl (meth)acrylate, α,β-unsaturated carboxylic acid, aromatic vinyl monomer, and no more than 25% by weight of α,β-unsaturated carboxylic ester of C2-10 alcohol based on total weight of the monomers. The ethylenic unsaturated monomers may comprise from about 14% to about 18% by weight of the α,β-unsaturated carboxylic acid based on total weight of the monomers. The amount of coalescing solvent in the floor finishing composition may be more than 6% by weight based on total weight of the floor finishing composition.

Compositions for treating a substrate to provide increased lubricity to portions of the substrate surface that come into contact with the surface of a mating component are provided. The treated substrates provide improved lubricity, while maintaining adhesion between the surface of the substrate and an overlying polymer coating and imparting corrosion resistance to the substrate surface. The compositions include a silanol coupling agent in combination with lubricating particles, and an acid, which are dissolved or dispersed in a mixture of organic solvent and water.

A graphene-based zinc containing coating is provided to prevent or slow down the corrosion of steel. The graphene-based materials are selected from a group of modified single-layer graphene, double-layer graphene, few layer graphene, graphene nanoplatelet, doped graphene, and a combination thereof. The modified graphene-based materials in zinc-containing paints or coatings act as a barrier to prevent or slow down the diffusion of corrosive species to the steel surface to be protected. For such a purpose, the graphene has a high aspect ratio and good structural integrity, especially a lack of defects on the basal plane of the graphene.