STRENGTH PROPERTIES OF REINFORCED PLASTIC LAMINATES AT ELEVATED TEMPERATURES (VIBRIN 135 RESIN AND 181-GARAN GLASS FABRIC),
FOREST PRODUCTS LAB MADISON WIS
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This report presents properties of a heat-resistant polyester laminate made of Vibrin 135 resin and 181 glass fabric with Garan finish. Data are presented in both tables and curves. In general, it is shown that strength properties decrease with increases in temperature. Strength drops with the first application of heat, but at a constant temperature of 300F., the exposed material has a tendency to maintain a constant strength for continued exposure. Continued exposure at 400F. and above, however, caused degradation and losses in strength. From curves and data presented, the effects of temperature between 80 and 1,000F. and of exposure periods between 0.05 hour and 1,000 hours on individual strength properties may be judged and interpreted separately.