Hi all;
Just discovered this forum looking for a formula for making some patching compound for a floor job I am doing in my home (350 sq.ft.).
I have been tiling for about fifty years, learning the trade from my father, and passing it on to my son. I retired about three years ago, but have done two bathrooms and an entry for a neighbor (master bath is up next) also some work for a builder up the street.
I have about 20-30 relatives in the tile business.
I live in SW NC, USA and have only a Lowe's near by. The Home Depot is about 22 miles away.
The only patching compound they carry only comes in 7lb tube and is about $9.00
I need to patch some areas of the sub floor, before installing Durock cement board.
Some of the areas are 3/4" plywood over 3/4" OSB and some other areas are 3/4" particle board over OSB.
I was thinking of making some out of Portland, sand and (dry) drywall compound.
any ideas of what ratios, or some other suggestions?