ratio

  1. dorydirect

    Answered What is the best mix ratio from cement / sand ( no hard aggregates) for thin castings such as bowls and planters

    Hello, After many tests, it seems that ANY combination of hard aggregates in my castings produces holes here and there which I try to prevent as much as possible. what is the best mix ratio from cement/sand ( no hard aggregates) for thin castings such as bowls and planters? I know that...