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Product Performance Certificates
 
Ptfe coatings
Ptfe coatings provides excellent non-stick properties, these materials have the highest operating temperature of any fluoropolymer and have extremely low coefficient of friction coupled with good abrasion and chemical resistance. These coatings are either single or two-coat systems, comprising of a primer and topcoat and for premium systems three coat systems are available. PTFE coatings are available in aqueous based forms. PTFE coatings can provide the solution to many engineering questions particularly those relating to non-stick (release), low friction, chemical resistance and wear resistance, there are many other solutions that can be resolved by the application of PTFE coatings.
BLIONTM-A pinhole
free homogenous thick coating of PVDF (KYNAR), FEP, PFA, ETFE.ECTFE
(HALAR). It has the extraordinary chemical resistance on chemical
equipments parts. Any articles of intricacy shape can be processed.
Thickness from 500 to 1000 microns. Any articles of intricate configurations
can be processed.
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Properties:
Temperature ranges from-100oC
to +260oC. Withstands impact force and elongation up
to 30%. Non-stick, Non-toxic, Electrical insulation, Anti-static
and Release-surface. Resistant to almost all chemicals and solvents.
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- Vessels
- Agitators
- Stirrers
- Hooppers
- Thermowells
- Spindles
- Dip-Tubes
- Implellers
- Pump Housings
- Manway Covers
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- Autoclaves
- Sight Glasses
- Heat Exchangers
- Pressure Filters
- Heating Coils
- Steam Ejectors
- Boiler dish
- Nuclear Parts
- Large Parts
- Large diameter pipes
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- Process Control equipment
- Centrifuge Housings
- Valves
- Bends
- Tees
- Floats
- Flanges
- Springs
- Reducers
- Mushrooms
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| Metal
Specifiction For-BLION? Parts
should withstand 450oC without warping or
damage. Parts cannot be painted before coating. All
inside and outside corners to be radioused. All junction
of flanges, nozzles, manway, ID of flange faces to be
ground to a smooth redious. For pipes under 8" minimum
radii of 3/16", to 16" radii of 1/4" and over 16" radii
of 3/8". Nozzles and Manway to be flush with inside
wall of vessel.
All welds on the interior to be ground flush without
splatter, protrusions or pits.
For perforated steel hole diameter to metal thickness
ratio required 1:1 with proper radii. Castings must
be of excellent quality, porosity can cause problems
during process.
Welds must be solid, continous and should contain no
porosity, holes or undercutting. No welding can be done
after coating is applied.
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| PHYSICAL PROPERTIES OF DIFFERENT GRADE OF BLION? |
| DESCRIPTION |
UNITS |
BLION?DF |
BLION?TFE |
BLION?FEP |
BLION?PFA |
| Max.temp. |
oC |
-40 to + 150 |
-50 to + 175 |
-80 to + 200 |
-100 to + 260 |
| Tensile Strength |
kg/cm2 |
400-500 |
491 |
180 |
190-200 |
| Izod
Impact Strength |
Kg.cm. |
10
to 12 |
No
Break |
No
Break |
No
Break |
| Elongation |
% |
30 |
40 |
30 |
35 |
| Hardness |
Rockwell/Shore |
R115/D77-82 |
R93/D75 |
R40/D60 |
R45/D65 |
| Abras
Resistant |
Armstong |
0.4 |
0.3 |
0.4 |
0.6 |
| Water
Absorption |
% |
0.04 |
0.01 |
0.01 |
0.01 |
| Dielectric Constant |
103-106HZ |
0.60 |
2.6 |
3.1 |
2.1 |
| Dilectric Strength |
KV
/MM |
14/17 |
21 |
15 |
20-26 |
| Volume Resistivity |
Ohms-Cm |
1.3
x 1012 |
> 1015 |
> 1016 |
> 2.0 x 1015 |
Thermal Conductivity
(ASTM C 177) |
Cal/Sec-1 Cm-1 |
3.10-4 |
4.10-4 |
5.8-4 |
6.10-4 |
| Thermal Expansion |
10-5 oC |
12 |
12-17 |
5-9 |
8-10 |
| Density |
gms
/ c.c |
1.78 |
1.68 |
2.16 |
2.06 |
| Chemical Resistant |
- |
Good |
Very Good |
Excellent |
Excellent |
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