Hot Curing Casting Epoxy System
GENERAL DESCRIPTION
PLIOGRIP EPOXY RESIN PER 205 is an unmodified liquid epoxy resin of medium viscosity that can be used with an aromatic amine hardener PH 972 for casting applications. PLiOGRIP PH 972 is a solid aromatic amine hardener. The castings made from this system are characterized by good heat resistance and good mechanical and electrical properties. This system gives a 'short pot life and fast cured at normal ambient temperatures. Products made from this system can be subjected to working temperature of 130 ' C. Silica flour to the extent of 200 phr may be added to the resin, hardener mix to minimize shrinkage and exotherm. Addition of silica is advantageous from the point of view of minimizing interfacial stresses between casting and the insert
TYPICAL PROPERTIES OF PLIOGRIP EPOXY RESIN PER 205
| Properties | Values |
|---|---|
| Type | Unmodified viscous epoxy resin |
| Specific gravity @ 2SoC | 1.14 -1.20 |
| Appearance | Clear to pale yellow liquid |
| Epoxy equivalent | 180 - 200 |
| Viscosity @ 2S'C CPS | 9000 - 12000 |
| Chlorine contents % | 0.2 |
TYPICAL PROPERTIES OF PLIOGRIP HARDENER PH 972
| Properties | Values |
|---|---|
| Type | Aromatic Amine |
| Appearance | Solid powder/flakes |
| Melting Point °C | 88 - 92 |
MIXING RATIO (PARTS BY WEIGHD EPOXY)
Resin 100, Hardner 27
POT LIFE
| Temperature °c | Initial Viscosity cps | Pot life, hrs |
|---|---|---|
| 20 | 20000 - 30000 | 6 - 8 |
| 30 | 4000 - 8000 | 5-7 |
| 40 | 1000 - 1500 | 3-5 |
| 50 | 300 - 500 | 1 - 2 |
| 60 | 200 - 300 |
TYPICAL PROPERTIES OF UNFILLED CURED SYSTEM WITHOUT REINFORCEMENT
|
. Property |
Values |
|
Density (gm/cc) |
1.15 - 1.20 |
|
Tensile strength (kg/em') |
55 - 60 |
|
Compressive strength (kg/em') |
100 -120 |
|
Flexural strength (kg/em') |
120-140 |
|
Impact strength (kg.cm/cm') |
> 12 |
|
Water absorption ('Yo w/w)@25 °C/10 days |
less than 0.2 |
|
Modulus of elasticity (kg/cm2) |
4000 - 4500 |
|
Martens HDT (OC) |
70 - 80 |
|
Thermal conductivity (kcal /mh°C) |
0.21 |
|
Relative dielectric constant (Er) @ 25°C |
4.0 |
|
Dielectric loss factor tan Ii @ 25°C |
0.003 |
|
Volume resistivity @ 25°C (10" Q em) |
1.2 |
|
Tracking resistance (grade) |
KA3C |
|
Min. dielectric strength (kV / em) |
180-200 |
SAFETY PRECAUTION:
Direct contact of Resin/Hardener with skin should be avoided. Use of hand gloves while handling them is , recommended. Splashes on the skin, if any, should be removed immediately with soap and lukewarm water or with a suitable remover.
STORAGE:
Should be stored in closed containers in cool condition away from direct sunlight. Shelf life of Resin & Hardener @ 25°C. is about 12 months from the date of manufacturing.
NOTE:
The information given in this literature is based on the present state of our knowledge but any conclusions and recommendations are made without any liability on our part. Buyers and users should make their own assessment of our products under their own conditions and for their own requirements.
Esteem spirit temper too say adieus who direct.
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