We are installing a white oak engineered hardwood floor throughout the main floor of our house. It has quite a few knot holes and we are trying to find the best way to fill them. We have narrowed it down to epoxy and a product from Knottec (poweradhesives(dot com)/solutions/knottec). Does the Knottec power adhesive have the same strength and durability as epoxy? Some of the knot holes are 2" in diameter.