Abstract: Soak-in and strike through on the exposed end grain portions of low density or porous wood substrates including alder, birch, pine, poplar, and soft maple are reduced by applying to the end grain a solvent-borne coating composition containing an (i) alkyd resin having a hydroxyl number less than about 150, (ii) acid catalyst and (iii) cross linker. The resin desirably has a number average molecular weight greater than about 2000, and may have a Gardner coloration less than about 3 or may be a short oil alkyd based on coconut oil. By using a reduced hydroxyl number alkyd resin, a reduced cross linker amount may be employed, thereby reducing formaldehyde evolution in compositions made with methylated amino resin cross linkers such as methylated melamine resins.

Abstract: Soak-in and strike through on the exposed end grain portions of low density or porous wood substrates including alder, birch, pine, poplar, and soft maple are reduced by applying to the end grain a solvent-borne coating composition containing an (i) alkyd resin having a hydroxyl number less than about 150, (ii) acid catalyst and (iii) cross linker. The resin desirably has a number average molecular weight greater than about 2000, and may have a Gardner coloration less than about 3 or may be a short oil alkyd based on coconut oil. By using a reduced hydroxyl number alkyd resin, a reduced cross linker amount may be employed, thereby reducing formaldehyde evolution in compositions made with methylated amino resin cross linkers such as methylated melamine resins.

Abstract: A pressure relief valve of the type primarily designed to regulate the flow of fluid generally in the form of air and its rate of flow and capability of being utilized in combination with a sphygmomano-meter assembly whereby flow of fluid from the sphyg head is accomplished at a predetermined rate and is selectively regulated by manual manipulation of the valve assembly. A valve housing is movably mounted therein and a valve block which is disposed to establish fluid communication from a sphyg head or point of use of the fluid through a metered port so as to establish a flow path for the fluid exiting from the valve assembly at a predetermined rate.