Tub to Shower Conversions With Blackstone tub to shower conversions, there is no need to maintain with caulking, adhesives or silicone in the future. It has a long lasting glossy factory like finish and is guaranteed water and leak proof for the life of the tub under normal use.. This tub to conversion conveniently allows a 4 to 6 inch step on virtually any unjetted tub without the appearance of an insert or a costly bathroom renovation. Blackstone Refinishing is one of the first companies in Alberta... Read more