Aqua Coat says its new and improved water-based High Performance Clear Wood Grain Filler features higher solids, better fill, and will perform better in fewer coats than the previous version. The company says the grain filler helps achieve a clear, glass-smooth finish on hard-to-fill woods such as oak, ash, walnut mahogany, cherry, and birch. It also can be tinted with water-soluble trans tints and dyes to accent the grains and pores to help attain the desired look. 

Aqua Coat High Performance Clear Grain Filler is popular among wooden instrument manufacturers such as guitar, ukulele and piano, the company adds.  It also works great for cabinets, tabletops, desktops, keepsake boxes, trim, frames, antique restoration and more.