Profile: Willamette Valley Co. manufactures patch & putty, paints & primers, sealers & repellents, inks & releasants, extenders & fillers and tape & gloves. Synthetic patch is a two-component polyurethane that is dispensed through a metering system. It repairs veneer voids, knot holes, splits, and cracks in plywood panels, MDO, HDO, laminated wood, and lumber. The polyurethane flows in and sets up in seconds to form a sandable patch that can be treated much like the wood it repairs. It can be nailed, screwed, painted, finished or overlayed. Patch comes in a variety of colors to compliment the wood being filled. LVL sealer is a water-based sealer used to coat the entire surface of LVL (Laminated Veneer Lumber) to reduce the cupping caused by sun and moisture exposure. Applied onto the wood at the mill, it protects the product against cupping in transport and storage. LVL sealer is available in clear as well as many other colors.