Hardi has about 30% cellulose fiber in it and the rest is cement. Hardi shrinks after it is installed so you must keep it tight to the the next board and not leave expansion gaps on either side. It de ... read more
I would concur with the above answers. If you are able to fill with wood putty and paint that would prove to be the most cost effective option. If you would like to go further, determine the brand o ... read more