Molded FRP Grating is a fiberglass reinforcement plastic grating by interweaving continuous fiberglass roving impregnated with unsaturated polyester resin. It is made by hand-lay up.Our gratings guarantee the best mechanical properties in bi-directions.Good chemical resistance can be achieved by superior polyester rein.




Molded FRP Grating is a fiberglass reinforcement plastic grating by interweaving continuous fiberglass roving impregnated with unsaturated polyester resin. It is made by hand-lay up.Our gratings guarantee the best mechanical properties in bi-directions.Good chemical resistance can be achieved by superior polyester rein.

    Pultrusion process is an antomatic process where by constant cross section profiles are produced continously.Pultruded FRP shapes are made from densely packed continuous glass fibers wrapped by a layer of glass mat.The densen fiber core makes the shapes very tough and riged,with flexural strength and impact strength in langitudinal direction higher than those of common steel. The use of glass mat increase the transverse strengh of the shapes and to supply for with good corrosion-resistance and cracking resistanec.The specifications mentioned below are used widely and widely.

Pultruded profiles
Round rod Square Tubes I-steel Chamnels Angles Round Tubes Rectan Gular Tube
2.0
25253
1
50305
40405
152.5
32193.2
3.0
32324
1.5
80304
50506
163.0
63.541.33.2
4.0
50504
2
100355
757510
183.0
101.644.56.4
5.0
60605
4
1504010
909010
252.5
12750.83.2
6.0
10010010
6
2005010
10010010
323.0
6.9
Cable Trey
10
2507012
12512512
506.0
7.9
12
8.5
10050
9.5
200100
         
10
300100
         
11
300150
         
12.7
400100
         

CHEMICAL
CONCEN TRATION
ORTHOPHTHALIC POLYESTER FRP
ISOPHTHALIC POLYESTER FRP
BISPHENO A POLYESTER FRP
25
52
ACIDS SULFURIC ACID
25% 50%
s
u
s
u
s
s
s
s
s
s
s
s
s
s
s
PHOSPHORIC ACID
50%
U
U
S
S
S
S
S
S
NITRIC ACID
5% 50%
Q
u
u
u
s
s
s
u
u
u
s
s
s
Q
Q
u
CHROMIC ACID
30%
U
U
U
U
U
S
Q
Q
HYDROCHLORIC ACID
31%
U
U
S
Q
U
S
S
S
ALKALIES CALCIUM HYDROXIDE
5%
U
U
S
U
U
S
S
S
CALCIUM HYDROXIDE
U
U
S
U
U
S
Q
Q
SODIUM CARBONATE
10%
U
U
U
U
U
S
Q
Q
POTASSIUM CARBONATE
10%
U
U
U
U
U
S
Q
Q
AMMONIUM BICARBONATE
20%
Q
Q
S
S
S
S
S
S
OTHERS DISTILLED WATER
Q
U
S
U
U
S
S
S
HYDROGEN PEROXIDE
5-10%
S
U
S
S
S
S
Q
Q
CHLORINE WATER
S
U
S
Q
U
S
S
Q
SALTS ALUMINUM
S
S
S
S
S
S
S
S
AMMONIUM CHLORIDE
S
S
S
S
S
S
S
S
AMMONIUM CHLORIDE
Q
U
S
S
S
S
S
S
AMMONIUM SULFATE
S
S
S
S
S
S
S
S
SODIUM ACETATE
S
S
S
S
S
S
S
S
NICKLE NITRATE
S
S
S
S
S
S
S
S
SODIUM NITRATE
S
S
S
S
S
S
S
S
SODIUM SULPHITE
10%
S
S
S
S
S
S
S
S
FERRIC CHLORIDE
S
S
S
S
S
S
S
S
SODIUM SULPHITE
5%
Q
Q
S
S
S
S
S
S
CALCIUM HYPOCHL ORITE
10%
Q
U
S
S
U
S
Q
U
MAGNESIUM CHLORIDE
S
S
S
S
S
S
S
S
POTASSIUM PERMANGANATE
S
S
S
S
S
S
S
S
ZINC SULFATE
S
S
S
S
S
S
S
S
MECHA
NICALP
ROPER
TIES
GASOLINE
S
U
S
U
U
S
U
U
KEROSENE
S
S
S
S
S
S
S
S
ALCOHOL METHYL
Q
U
Q
U
U
S
S
U
ALCOHOL ETHYL
/
/
S
/
/
S
S
/
GLYCOL
25-75%
S
U
S
S
Q
S
S
Q
BENZENE
U
U
Q
U
U
Q
U
U
ANLINE
U
U
U
U
U
U
U
U


  PROPRETY UNIT DIRECTION RODS&BARS SHAPES&TUBES(MAT REINFORCED)
MECHANICA
LPROPERTIES
SHEAR STRENGTH KG/CM2 L*
T*
1540 1540
520
TENSILE MODULUS KG/CM2 L*
T*
2.5-4.2*105
---
1.8-2.7*105
0.7*105
FLEXURAL MODULUS KG/CM2 L*
T*
5500-9000
---
3000-5200 1000-1760
FLEXURAL MODULUS KG/CM2 L*
T*
2.5-4.2*105
---
0.9-1.6*105 0.6*105
COMPRESSIVE STRENGTH KG/CM2 L*
T*
3000-5000
---
2000-5000 1080-1480
TENSILE STRENGTH KG/CM2 L*
T*
5000-9000
---
3000-5200 400-700
IZOD IMPACT STRENGTH(V TYPE) KG/CM2 L*
T*
200-500
---
150-3000
50

  PROPRETY UNIT DIRECTION RODS&BARS SHAPES&TUBES(MAT REINFORCED)
ELECTRICALPROPERTIES VOLUME RESISTANCE .CM   1012-1015  
BREAKDOWN VOLTAGE KV/mm   13-40  
DIELECTRIC CONSTANT     3-5  
SURFACE RESISTANCE     0.05  
ARC RESISTANCE S   60-180  
OTHERS SPECIFIC GRAVITY     1.8-2.1 1.7-1.9
REMARKS:L*-LONGITUDINAL DIRECTION T* TRANSVERSE DIRECT



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