Loading Port:China Main Port
Payment Terms:TT or LC
Min Order Qty:20Ton m.t.
Supply Capability:5000 Ton/ Month m.t./month
Novolac Epoxy vinyl ester resin, premium, dimensionally stable formulations w/LPA. Used for the parts ‘under the hood’, such as diesel engine, oil pump, valve covers, heat shields, etc.
Technical Specification of Resin P305
|
ITEM |
VALUE |
TEST METHOD |
|
Appearance |
light yellow, liquid |
visual |
|
Acid Value, mgKOH/g |
33.0 ± 5.0 |
GB/T 2895-2008 |
|
Viscosity, mPa · s (25Deg.C) |
2500 ± 500 |
GB/T 7193-2008 |
|
*Gel Time, min(SPI) |
28.5 ± 6.5 |
GB/T 7193-2008 |
|
*Curing Time, min(SPI) |
33.0 ± 7.0 |
GB/T 7193-2008 |
|
*Exothermic peak, Deg. C |
>160 |
GB/T 7193-2008 |
|
Density, g/cm3 (25 Deg. C) |
1.037 ± 0.012 |
|
|
Thermal Stability, hr (80 Deg. C) |
>=24 |
GB/T 7193-2008 |
*add 98% BPO 1.0% into 82 Deg. C water bath.
Mechanical peoperty of casting of Resin P305
|
ITEM |
VALUE |
TEST METHOD |
|
Tensile Strength, MPa |
55~65 |
ASTM D 638 |
|
Tensile Modulus, GPa |
2700~3300 |
ASTM D 638 |
|
Breaking Elongation, % |
3.0~5.0 |
ASTM D 638 |
|
Flexural Strength, MPa |
100~110 |
ASTM D 790 |
|
Flexural Modulus, GPa |
2700~3500 |
ASTM D 790 |
|
Barcol Hardness |
30~40 |
ASTM D 2583 |
Note: The listed data is typical physical property, not to be construed as product specification.
SMC Mechanical Property of Resin P305
|
ITEM |
VALUE |
TEST METHOD |
|
Tensile Strength, MPa |
91 |
ASTM D 638 |
|
Flexural Strength, MPa |
165 |
ASTM D 790 |
|
Heat Distortion Temperature, °C (1.8MPa) |
>235 |
ASTM D 648 |
Note: The listed data is based on SMC sheet thickness 4mm thick, the recipe is based: Resin: TBPB: ZINC STEARATE: MgO: fiberglass strand as 59: 0.8: 2.5: 1.7: 36 (weight), press temperature 150 Deg. C, and pressure 83MPa, temperature maintain time 180s.
Proposed recipe of Resin P305
|
ITEM |
Value for general application SMC/BMC |
Value for auto part HSMC |
|
MFE 757 |
100 |
100 |
|
Shrinkage agent |
0~10 |
/ |
|
TBPB(98%) |
1.2~1.8 |
1.0~2.0 |
|
ZINC STEARATE |
3.5~4.5 |
4.0~5.0 |
|
Pigment |
6~10 |
/ |
|
CaCO3 |
110~180(SMC) 250~350(BMC) |
/ |
|
Filler |
/ |
20~100 |
|
MgO |
1.2~1.8 |
1.8~2.5 |
|
Fiberglass strand |
18~30%(SMC) 5~15%(BMC) |
45~65% (1’’ length) |
Package and Storage of Resin P305
The product should be packed into clean, dry, safe and sealed container, net weight 200 Kg.
Stored in cool and well ventilated place, six months below 25Deg. C..
