What it is:
Monster Clay® Premium Grade Modeling Clay is a re-useable sulfur free, professional oil/wax based sculpting medium. Composed entirely of non-toxic, food grade components, Monster Clay® has an ultra smooth formulation that features a low melt temperature and a low tack feel that will not stick to tools or fingers. Monster Clay® has high plasticity and has a unique elastic quality much like soft taffy when warm. At average room temperature, Monster Clay® is firm enough to capture even the finest details and can be re-used and re-melted indefinitely. Monster Clay® melts easily to a pourable consistency and is great for making copies of life casts where changes are needed. This sulfur free recipe is compatible with platinum silicone molding compounds. Buy it once and re-use it over and over again. Each five pound quantity of Monster Clay® Premium is individually packaged in a convenient, reusable oven-safe container. Best of all, Monster Clay® has lower density than the average oil based clay medium. This means that you receive approximately 25% more clay per pound without the added cost.

Features and Benefits:

• Low Density - Monster Clay® has a lower density than the average oil-based clay. Each block of Monster Clay contains approximately 25% more material per pound than comparable products, making it one of the most cost effective choices in reusable clays.
• High Elasticity - Another unique quality of Monster Clay is its high elasticity. This gives the clay an unusual ability to stretch like taffy when warmed and allows for the creation of unusual shapes that would otherwise be difficult to accomplish.
• Smooth Composition - Monster Clay is a smooth body clay that can be easily worked when softened with mild heat. For surface smoothing, compatible solvents include 99% alcohol, Citrus Solve and Mineral Spirits which can be used to soften details and dissolve the clay surface.
• Sulfur-Free - Monster Clay is sulfur-free and is therefore compatible with platinum based silicone compounds.
• Firm at Average Room Temperature - Monster Clay remains firm at average room temperature to allow for precise detailing with fine sculpting tools.
• Non-Polymerizing/Non-Oxidizing Formula - Unlike many oil-based clays, Monster Clay will not become brittle, dry out or lose plasticity over time. Monster Clay is formulated to retain its original composition indefinitely.
• Melts Easily to a Pourable Consistency - Monster Clay can easily be melted and poured into any type of flexible mold material such as silicone, alginate, and urethane without the need for mold release. Monster Clay is re-meltable and will return to its original solid state upon cooling. It can be reused indefinitely without change in composition. Monster Clay is an ideal medium for lifecast reproduction where changes are needed prior to tooling and is perfect for rapid prototype duplication where additional detail and sculptural enhancements are desired.
• Temperature Responsive - Monster Clay is easily softened with a light bulb or a gas style oven. All grades of Monster Clay melt at 135°F. The optimal temperature for melting and pouring is around 150°F. Never exceed 180°F. Be sure to periodically mix the clay during melting with careful temperature monitoring. Comfortable handling temperature should not exceed 115°F. To avoid component separation, be sure to completely mix the clay in its melted state, before pouring into your mold. Monster Clay is packaged in an ovenable tray that can withstand temperatures up to 200°F

Pro Tip 1:
For easy demolding from gypsum molds, try spraying your sculpt with two light coats Lemon Pledge or Endust prior to molding! The polish will prevent your lqiud gypsum from beading up during the splash coat and help release the clay sculpture once the mold is set, making it far easier to demold. Allow your sculpture to dry for up to an hour after spraying the release coat before making your mold. WE DO NOT RECOMMEND THE USE CRYSTAL CLEAR WITH MONSTER CLAY because of Crystal Clear's tendancy to lift off the clay during moldmaking and transfer to the mold surface. 

Pro Tip #2:
Should you Monster Clay ever become mixed with molding bits or other unwanted shop debris, simply melt your clay down in its tub or a crock pot. Pour the melted clay through a piece of common window screen and back into its original container. Now you Monster Clay will be good as new and ready to be reused on your next project.