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(https://www.poweradhesives.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.

This filler looks like it will work with less trouble than epoxy, no mixing and less waste.

Yes the ease of use drew our attention we were just afraid it was to good to be true.