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FL-518 FL-518 resin is an Isophthalic resin based, medium-viscosity and medium- activity, good mechanical, high HDT properties polyester resin. FL-518 can be used in filament winding product. FL-518 is food grade products. Properties of FL-518 (specifications) (Viscosity and reactivity undergo slight changes in the course of prolonged storage) Property Value Unit Test methodAppearance Clear Acid value 7.0-15.0 mgKOH/g GB/T 2895-1982 Non-volatile matter 59-65 % GB/T 7193.3-1987 Viscosity at 25oC 0.38-0.63 Pa.s GB/T 7193.1-1987 Stability at 80oC ≥24 H GB/T 7193.4-1987 Typical cured functionUnit Test Method25oC-bath, 2ml MEKP, 4ml Cobalt isooctane (0.8%), 100 g resin Gel time 8.4-15.6 min GB/T 7193.6-1987 Properties of cured 518 (typical values) (Determined on unreinforced and unfilled specimens) Property Value Unit Test method Appearance No defect Barcal Hardness ≥45 GB/T 3854-2005 H.D.T. ≥80 oC GB/T 1634-2004 Elongation of break ≥3.60 % GB/T 2568-1995 Tensile Strength ≥65 Mpa GB/T 2560-1995 Tensile Modulus ≥3100 Mpa GB/T 2568-1995 Flexural Strength ≥110 Mpa GB/T 2570-1995 Flexural Module ≥3800 Mpa GB/T 2570-1995 Impact Strength ≥12.0 KJ/m2 GB/T 2571-1995 HANDLING: FL-518 resin contains ingredients that could be harmful if mishandled. Contact with skin and eyes should be avoided and necessary protective equipment and clothing should be worn. STORAGE: Drums-store at temperatures below 25oC. Storage life decreases with increasing storage temperature. Avoid exposure to heat sources such as direct sunlight or steam pipes. SHELF LIFE: This product has a limited shelf life. When stored in accordance with the above conditions, this product has an average shelf life of six months. The test is according to GB, ISO and ASTM. The information submitted in this publication is based on our current knowledge and experience. In view of the many factors that may affect processing and application, these data do not relieve processors from the responsibility of carrying out their own test and experiments; neither do they imply any legally binding assurance of certain properties or of suitability for a specific purpose. It’s the responsibility of those to whom we supply our products to ensure that proprietary rights and existing laws and legislation are observed.