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Fill Material
Brush India Manufacturing Private Limited Fill materials Guide.
The fill-material
is the most important part of a technical brush, as it carries out the
brushing action. According to this, the selection for the type of wire
has to be properly conceived and analyzed.
The fill-material
can be provided as stiff or soft type of wire, either thick or thin
filament, highly resistant to chemical agents or to high temperatures,
quite flexible, particularly bending, deforming and abrading-proof too.
For special
purposes, it is possible to combine and mix diverse wire assortments,
in accordance to pre-definite mixing combinations.
The wires working
strength is determined by both length of the surface of contact and its
density: this concept finds its application especially in the wheel
brushes assembly.
It is strictly
advised to bear in mind that both the exploiting temperature and the
chemical agents concentration may be very important during the
brushings session, as the end user may exploit the brush through
various rating performances.
Before any exploitation, it is also advised to test the brush in the same working conditions.
POLYESTERE-PET-PBT : High stiffness combination, hardness and durability.
PBT : Polybutile for food industry.
POLYPROPYLENE : High resistance to chemical factors, low density and low resistance to low temperatures.
NYLON 6 / 6.6 : High
resistance and stiffness, stable for dimensions and low thermal
expansion. Exploitable for liquids spreading and cleaning abrasive
surfaces and materials.
NYLON 6.12 : Tough
and resistant to abraadability, humidity absorption lower than NYL 6.
The type of wire offers the highest abrading resistance and water
absorption performances. It is suggested for brushing in water and any
other tough brushing environment.
NYLON ABRASIVO :
High resistance and stiffness, it keeps its shape and performs a very
high abrading resistance, just like the NYL 6.12 but an abrasive
composition. Exploitable for deburring metals, plastic materials, for
smoothing and rusticating wooden surfaces.
TAMPICO VEGETAL
FIBER : Not subjected to static electricity, used primarily for surface
treatment of wood, for polishing metals and for sealing purposes in
higher temperature range.
HORSE HAIR : Not
subjected to static electricity, excellent wiping, sealing and dusting
effect, used for sealing purposes, spree ding liquids (excellent
brushing effect) dusting veneered or laminated wooden surfaces.
PIG BRISTLE : Not
submitted to electricity, excellent wiping, sealing and dusting effect,
similar exploitations to horsehair but stronger bristles.
STEELS: General sealing purposes at higher temperatures, deburring and cleaning of metal surfaces.
STAINLESS STEEL :
It is corrosion resisted and ideal brushing stainless steels,
derivative alloys, aluminium and other materials that have to avoid
contamination. A contamination can result in exploiting carbon steel
wire brushes, as the carbon’s metal residues can cause rust. It is
recommended not to use the same type of brush to scrub different
quality of the materials. Furthermore, it is important to avoid any
brush’s contamination with reference to the surfaces where carbon
steel surfaces are subjected to the brushing action. At last, it is
recommended to passive all the stainless steel surface with appropriate
solutions after the brushing treatment, in order to get the stainless
steel natural resistance to the corrosion.
General Fiber Characteristics
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6.6
NYLON
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6.12
NYLO
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POLYPROPYLENE
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HORSE
HAI
|
TAMPICO
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Heat
Distortion (F)
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300
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250
|
225
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370
|
283
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Melting
Point
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500
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405
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330
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Bend
Recovery (%)
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90
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90
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70-80
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execl.
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poor
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Shelf
Life
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execl.
|
execl.
|
good
|
poor
|
fair
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Abrasion
Resistance
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execl.
|
execl.
|
good
|
good
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poor
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Specific
Gravity (G/CC)
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1.13-4 |
1.04-5
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.90-1
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Tensile
Strength (PSI)
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60-70M
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50-60M
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50-80M
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Chemical
And Environmental Resistance
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6
NYLON
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6.6
NYLON
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6.12
NYLON
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POLYPROPYLENE
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HORSE
HAIR
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TAMPICO
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Dilute
Alkalis
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execl.
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execl.
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execl.
|
execl.
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poor
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good
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Dilute
Acids
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good
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good
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good
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execl.
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poor
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good
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Strong
Acids
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fair
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fair
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good
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good
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g-poor
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g-poor
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Alcohols
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good
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good
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good
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execl.
|
poor
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good
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Petroleum
Distilates
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execl.
|
execl.
|
execl.
|
good
|
poor
|
good
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Hot
Water
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fair
|
good
|
good
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fair
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poor
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good
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Alcohols,
Vegetable Oils
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good
|
good
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good
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execl.
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poor
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good
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