When selecting a wood filler for your rotted window sill, look for a product that is:
Some popular types of wood fillers for exterior use include: wood filler for rotted window sill
Two-part epoxies bond chemically to wood, ensuring they won't shrink, crack, or fall out as the wood expands and contracts with the weather. Abatron WoodEpox Wood Filler Grauer's Paint & Decorating& more Go to product viewer dialog for this item. When selecting a wood filler for your rotted
Just remember: Dig out every speck of rot, use the liquid consolidator, and paint it properly. Do that, and your “rotted” sill will become the strongest part of the window. ensuring they won't shrink