1. Attempts have been made at this laboratory in the past to formulate a mixture of MgO powder and clear acrylic resin. However, the resin was expensive and the resultant coating was extremely brittle and did not adhere well to the surfaces to which it was applied. As a result, the coating readily flaked and chipped off.
2. Thermoplastic materials do not become infusible when subjected to heat and pressure as do thermosetting materials. Therefore, thermoplastic materials may be softened and reshaped under heat and pressure and then become solid again on cooling.
3. The Acryloid B-72 resin used was supplied by Rohm and Haas, Philadelphia, Pennsylvania in 5-gal, 40-lb lots. When ordering, one should specify40% solids dissolved in toluol.
4. T. F. Kycia, “Scattering of K+ Mesons off Protons” (thesis), Lawrence Radiation Laboratory Report UCRL-8753, May 14, 1959.