WEICON Main Catalogue Chemical and technical products Page 59
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Polyurethane Systems PU-90 PU-240 Base - 0 5% Phosphoric acid + Petrol (92 to 100 octane) - Phosphoric acid (concentrated) - Diesel/heating oil - 2-Propanol - Glycol ether - 5% Nitric acid - > 5% Acetic acid - 5% Hydrochloric acid + Ethanol - Salt water/seawater + Freon - 5% Sulphuric acid o Antifreeze + Silicone oil (concentrated) - Gear oil - Edible oil/vegetable oil - Glycerine (glycol) + Toluene + Hydraulic oil 0 Naphtha + 20% Caustic potash solution + Water + Ketones - Water, +90°C o Cooling lubricant, water-dilutable + W3% Hydrogen peroxide + Thinner - Paraffin oil + Lyes, thinned + Xylene + Methanol - 10% Citric acid + + = resistant 0 = resistant for a limited time - = not resistant Easy-Mix PU-90 Easy-Mix PU-240 Easy-Mix PU Crsytal polyurethane polyurethane polyurethane Mixing ratio resin/hardener 1:1 1:1 1:1 Colour after curing black black crystal-clear 1.30 - 1.35 g/cm3 1.30 - 1.35 g/cm3 1.13 g/cm3 Pot life at +20 °C (+68 °F) 90 sec. 240 sec. 2 - 4 min. Handling strength (35 %) after 5 min. 10 min. 30 min. Mechanical loads (50 % strength) after 10 min. 30 min. 60 min. 12 h 12 h 12 h 0.1 - 4.0 mm 0.1 - 4.0 mm 0.1 - 4.0 mm Density of the mixture Final strength (100 %) after Adhesive gap bridging On Aluminium (0.26 mm) 13 N/mm2 (1,900 psi) 14 N/mm2 (2,000 psi) 11 N/mm2 (1,600 psi) On Steel bright (0.26 mm) 19 N/mm2 (2,800 psi) 23 N/mm2 (3,300 psi) 17 N/mm2 (2,500 psi) On Stainless steel (0.26 mm) Shore hardness D (DIN ISO 7619) 17 N/mm2 (2,500 psi) 650 - 750 N/mm2 (90 - 110 ksi) 66 18 N/mm2 (2,600 psi) 450 - 550 N/mm2 (70 - 80 ksi) 68 17 N/mm2 (2,500 psi) 240 - 280 N/mm2 (35 - 40 ksi) 73 Tensile strength DIN EN ISO 527-2 21 N/mm2 (3.000 psi) 20 N/mm2 (2.900 psi) 12 N/mm2 (1.750 psi) Thermoforming resistance 35 % -55 to +125°C (-67 to +257°F) +65°C (+149°F) 31 % -55 to +125°C (-67 to +257°F) +65°C (+149°F) 20 % -55 to +100°C (-67 to +212°F) +50°C (+122°F) TGA decomposition temperature (onset-temp.) Average E-module +20 °C (+68 °F) Tensile Extension DIN EN ISO 527-2 Temperature resistance Glass transition temperature Technical Sprays - 20% Sodium hydroxide solution 10% Ammonia Technical Liquids Formic acid (concentrated) +330°C (+626°F) +336°C (+637°F) - Tg after curing at room temperature +45.6°C +30.9°C +48.0°C Tg after tempering at +120 °C +31.1°C +27.0°C - Catalogue WEICON Assembly Pastes Technical Data + Lubricants a - 0 Mineral and synthetic motor oil WEICON TOOLS® pe onto uminium pi Gluing an al nel pa nt fro plastic PU-240 - Methyl ethyl ketone Alcohol Other of plastic Production nels pa h ic w sand 0 PU-9 Acetone Adhesives / Sealants Chemical resistance of WEICON Polyurethane Systems after curing 59
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