We operate a large mill and 2 mines producing a serpentine consisting of antigorite, a hydrous magnesium silicate. This material has been found to be a very useful filler/additive in the manufacture of tires and PVC plastic as it solves several problems associated with other additives. Some have also used it as an asbestos substitute as it has similar properties.We are capable of exporting large amounts of this material 1000-80,000 ton orders and currently have samples and a sales agent in Guangzhou. We also have started mining vermiculite and are willing to export custom orders (www.northfil.com). We are also always available to do custom milling or toll grinding.
NORTHFIL -325
Technical Data Analysis
Chemical
ASTM Methods
% by weight
Silica (Sio2)
Whole Rock Analysis- XRD
30.300%
Alumin Alumina (AI2O3)
3.400%
Ferric Oxide (Fe2O3)
7.800%
Magne Magnesia (MgO)
31.600%
Trace Elements:
Lime (CaO) 3.600%
Chromic Oxide (Cr2O3) 0.210%
K20 0.130% H2O, bonded 13.550%
Sodium Oxide (Na2O) 0.100%
Typical Physical Data:
Appearance
Fine Light Gray Powder
Brightness
(Photo Voltmeter)
68 - 69
Chemical Family-Serpentine, with minor amounts of other Mg-silicates
Mg3Si2O5(OH)4
Mg3Si4O10(OH)2
Oil Absorption
(ASTM D1483-95)
38 lbs/ 100lbs
38 gm / 100 gm
Loss On Ignition
13.550%
Minus 325 mesh Tyler / -45 micron
97.6 % passing
Bulk Density: ml/100gm - Dry
170-190
Moisture (%)
(Gravimetric at 105C)
0.4
Loose lb/ft³
37-32
Morphology
(Optical Microscopy)
Acicular - Equant
Tapped lb/ft³
47.5
Refractive Index
(Immersion Oil)
1.57
Charge
Electropositive
Mohs Hardness
(Manual)
2.5
pH
(Paste pH)
9.34
Aspect Ratio
(Automated Digital Imaging)
1:16
Specific Gravity
(Gas Pycnometer)
2.45
Median Particle Size
(Cyclosizer/Sedigraph)
10 micron
Melting Point > 1385C
Water Solubility
0.0038 gm/100ml
NORTHFIL -325 (45 Microns)
NON-TOXIC, ENVIRONMENTALLY SAFE MINERAL FILLER POWDER, CONTAINING NO FREE SILICA.
DERIVED FROM A NATURALLY OCCURRING MINERAL KNOWN AS ANTIGORITE.
FEATURES AND BENEFITS
IMPROVED QUALITY DUE TO HIGH TENSILE STRENGTH, FLEXIBILITY
RESISTANCE TO THERMAL CHEMICAL ELECTRICAL CONDITIONS
CONSISTENT UNIFORMITY
NON-ASBESTOS
STRONG INSULATIVE PROPERTIES
INCREASED COST EFFICIENCIES WHEN FORMULATED IN INDUSTRY APPLICATIONS
LESS ABRASIVENESS THAN WOLLASTONITE IN PLASTIC PARTS
TYPICAL END- USER APPLICATIONS
FRICTION MATERIALS, GASKETS, BRAKE PADS
FLOOR COVERINGS AND BACKINGS
ENGINEERED PLASTICS
SPECIALTY RUBBER AND ELASTOMERS
BUILDING MATERIALS
COATINGS, PUTTIES
ASPHALT AND PAVING COMPOUNDS
LATEX ADDITIVES
CIRCUIT BOARDS
NORTHFIL PRODUCT VARIATIONS can produce to -500.
