Document e7zzLo2jRQoZKv0mkgXngem89
FILE NAME: Hedman (HED) DATE: 0000 DOC#: HED006 DOCUMENT DESCRIPTION: Company Specs
HEDNANITE
technical data sheet
Hedmanite is a natural nonasbestos serpentine - lizardite - powder with a minor chrysotile impurity having an average fibre length of about 2'h microns (determ ined a t 4Q0GX m agnification), that is in the cate gory considered by the m edical research experts to be devoid of pathogenic potential. The lap shear strength of the prismatic laths coupled with the fibre reinforcement provided by Hedmanite will help the formuiator achieve most of the desirable qualities of asbestos, m ica and talc without the drawbacks. The minor free iron (m agnetite) impurity results in good insulating and di-electrical properties. Contains no free silica or additives. Control any dust.
PLASTIC USES:
Hedmamte is used in phenolic and polyester m olding compounds and gelcoats as a reinforcing filler. It also nas application in vinyl flooring and in vinyl acefdte and epoxy adhesives, acrylic, melamine, nylon, poiyprcoviene. polyethylene.
PAPER USES:
Hedmanite is a low-cost extender of cellulose fibres in paperboard, construction paper, and cover paper, it can be used in newsprint and other printing papers for improvements in print quality and opacity, and gene rally m the pulp and paper industiy for pitch control.
GENERA! USES:
Heamanite has application in refractory compounds for steel mills, in welding rod flux coatings, texture & rust proof paints, stains & primer paints, friction materials, asphalt paving, sealants, caulking tape and compounds, cenain cem ent products, wood preservatives, corrosion resistant coatings, stucco, iatex backing for linoleum ana floor files, mastic cell putties and insulating cement, grease.
TECH N ICA L DATA (Typical Value):
Typical Chem ical Analysis:
CONSTITUENT
%
Silica Ferrous Oxide Feme Oxide
(SiO,)......................40.98 (Fed)...................... 2.05 (Fe:d3) ..................... 2.41
A lum ina
(AM3a) .....................2.52
Lime
(C a O )......................0,30
M cg n esia
(M g O )................ ,..38.07
Manganese Oxide (M nO )...... .............0.21
Chromic Oxide
(C r,05) .....................0.44
Nickel Oxide
(N iO ).................. .,...0.24
Carbon Dioxide
(COO........................0.22
M ciecular H.0 - LOI at 982C....................12.93
Moisture - oven drying a t 205aC ................ 50
Identity and Physical Data:
A p p e a ra n ce ......................... White (blueish)
Chemical family: Hydrous magnesium silicate
Molecular form ula.................M9 j(SijOs)(OH)J
Bulk density: mi/tOCg -
D r/
300-500
Wet 300-550
Pressure 135-160
C h a rg e .............................Electropositive
pH ................................................................. 94
Specific Gravity.........................................1.87 Brightness.................................................57-63 Oil Absorption1 ............................................. 32
(1) SPATULA RUBOUT METHCO IBS OIL/IOO LBS. PIGMENT
MtDMANITt
HEDMAN RESOURCES UNITED
Timmins. Ontario, Canada P4N 7E7 -Telephone: (705) 264-3709. Cable "Hedman"
Warehoused stock in Toronto. Cleveland, Liverpool, Antwerp. Tokyo and Kobe
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