Dental All of the following are true about property of polymethyl methacrylate except: A KHN 18-20 B chemical stable if heated till 260 degree F C Modulous of elasticity is 2.4 Gpa. D Tensile strength 29Mpa. 💡 Explanation All of the following are true about property of polymethyl methacrylate except: ✓ Correct Answer: D. Tensile strength 29Mpa.