Probably the best latex mold making compound money can buy. We've been offering this product since the early 60's and in all these years this product has been consistently a work horse for the garden statuary and precast concrete industry. Even in this day of modern polymers and elastomers, Latex 74 is going to be hard to beat if you are making production molds for casting cement or plaster. Sure, it may take a little longer to make a Latex 74 mold because of the fact that you have to brush on multiple layers of the material, but once that mold has been made, there is no reason why it won't be good for hundreds of castings for many years if treated and stored properly. A high solids natural latex rubber, Latex 74 is about 75% solids and as a result it will build and dry quickly so that multiple layers of material can be applied in one day. Generally a good mold will require 20-30 layers of latex (depending on the size of the piece being molded) to build up enough material to function well as a mold. Great for casting plaster, gypsum cements and portland cements. Not recommended for wax and plastic resins. A gallon of Latex 74 will cover approximnately twelve square feet at 1/8" thick. This is the quart size container.