Detailed Product Description

PRODUCT DESCRIPTION BENT-FOU is an activated bentonite used in foundry works for preparation of themolding sand with full of success. BENT-FOU, which is produced by the special modification of the raw bentoniteobtained from Edirne region, is a very suitable product for high technology foundrieswith its high properties. BENT-FOU makes the foundry mold gain high bonding capacity it has highresistance values and sintering endurance. Most important property of our product is its endurance and permeability. The compactability of 40± 5 provides maximum strength with minimum humidty.PERFORMANCE FEATURES Strength and permeability are the basic particularities of this product. The characteristics BENT-FOU owns, give it high bonding properties. It gives the highest strength at high water contents maintaining their bonding properties to a higher degree at the high temperature.TYPICAL PRODUCT CHARACTERISTICS CHEMICAL COMPOSITION Wet Strain Strength 13,5 - 14 N/cm2 SiO2 % 61-63 Wet Tensile Strength 0,34 - 0,38 N/cm2 AI2O3 % 17-18 Gelling Index 21 - 25 (2g/100ml) Fe2O3 % 3-4 Sintering Temperature ~ %1 (4g/100ml) CaO % 2,5-3,0 Liquid Limit Value 1140 - 1160 0C Na2O % 1,8-2,6 Liquid Limit Value 430 - 480 g K2O % 0,5-1 Methylene Blue Adsorbtion 80 - 87 ml/g MgO % 4-5 pH 9,5-9,8 LO.I. % 6-6,5 (1h.,9000C) Humidity Content %7 - %10 MINERALOGICAL CONTENT TECHNICAL SPECIFICATIONS Montmorillonite % 80 - 88 Water Content % 7-10 Calcite % 2 - 4 Free Bulk Density 650 - 750 g/l Feldspat % 3 - 5 Compressed Bulk Density 750 - 850 g/l Quartz < % 1 Specific Gravity 2.5 g/l Cristabolite - Residue on 200 Mesh Sieve 3 - 4 % max. PARTICLE SIZE ANALYSIS + 150 µ % 1 max. 150-106 µ % 3 max. 106-63 µ % 35 - 40 max. - 63 µ % 55 - 60 SAMPLES In order to obtain a sample of BENT-FOU, you can consult Bensan Technical Service or fax your request. PACKAGING & TRANSPORTATION- Available in 50 kg PVC sacks or multiple paper bags- Shipments are made by rail, truck or shipping containers. NOTS : THE KNOWLEDGE IN THIS PRODUCT BULLETIN SHOULD BE CONSIDERED AS GENERAL INFORMATION ONLY AND NOT BE USED FOR PURCHASE SPECIFICATIONS TYPICAL ANAYSES ARE BASED ON THE AVERAGE FIGURES