All Paraplast brand tissue embedding media are made of a combination of highly purified wax and several plastic polymers of greater tensile strength and elasticity. This results in greater compressiiblity ( without crumbling) during sectioning, rapid inflitration and thinner sections which flatten in a thermostatically controlled water bath. Recommended for General Tissue Embedding Use: A refined mixture of highly purified paraffin containing plastic polymers of regulated molecular weights that provides better tissue infiltration and superior quality sections. Greatly minimizes tissue compressions due to sectioning. Gives brittle, difficult to cut tissues (such as fibroid tumors, blood-engorged tissues, thrombi, decalcified bone and cartilatge) an innate elasticity which produces excellent, wrinkle-free sections. Clearing is complete and without stainable residue.