Nantong WellGrid Composite Material Co., Ltd.
Address：No. 155, Xiaokang Road, Dongchen Town, Rugao City, Jiangsu Prov. China
Zip Code：226571
Tel：+86-513-88509885
Contact : Mr. Irwin Shi
+86 13962721862
Fax：+86-513-88509889
Site ：www.well-grid.com
E-mail ： info@well-grid.com
Skype：irwinshi-frp
QQ：156858136@qq.com
FRP Molded Grating Strong Points:
1. Corrosion Resistance
Different types of resin provide their own different anti-corrosion properties, which could be used in different corrosion circumstance such as acid, alkali, salt, organic solvent (in gas or liquid form) and the like over a long period.
2. Fire Resistance
Our special formula provide grating with excellent fire resistant performance. Our FRP gratings pass ASTM E-84 Class 1.
3. Light Weight & High Strength
The perfect combination of the continuous E-glass roving and thermosetting polyester resin provide grating with light weight and high strength and its specific gravity is only 1/4 of that of steel, 1/3 of aluminum. Its rigidity is up to and even exceeds that of steel. Different thickness and mesh size bring the client more choice.
4. Safety & Anti-slip
The high modulus of elasticity and various surfaces provided the super anti-skid performances. Its surface could be smooth surface, meniscus surface, grit surface and chequer plate cover which is suitable for different working places.
5. Electrical Insulating
High strength E-glass roving and high-grade resin provide the product super electric performance. Its electric break strength could reach 10KV/mm. There is no electric spark even when impact by tools, meanwhile it is non-magnetism. FRP Molded Grating could be used safely under the antiknock, diamagnetism and electric-resistance environments.
6. Aging Resistance
The high-grade resin and anti-ageing stabilizer provide grating long-life ageing resistant performance and the unique design make grating excellent self-cleanness function and keep its brightness and strength over a long time. The service life of grating could be 25 years.
FRP Molded Grating Availability:
|
No. |
Deep
（mm）
|
Mesh Size（mm）
|
Panel Size Available（mm）
|
Open Area （%）
|
Unit Weight （kg/m²）
|
|
1
|
13
|
38*38
|
1220*3660
|
68
|
6.3
|
|
2
|
13
|
50*50
|
1220*3660
|
78
|
5.8
|
|
3
|
13
|
38*38+19*19
|
1220*3660
|
40
|
10.8
|
|
4
|
14
|
40*40+20*20
|
1007*4047
|
42
|
10.5
|
|
5
|
22
|
40*40+20*20
|
1007*4047
|
42
|
15.0
|
|
6
|
25
|
38*38
|
1220*3660/1000*4038
|
68
|
12.7
|
|
7
|
25
|
38*38+19*19
|
1220*3660
|
40
|
16.6
|
|
8
|
25
|
40*40
|
1007*4047
|
66
|
12.5
|
|
9
|
25
|
100*25
|
1007*3007
|
66
|
13.0
|
|
10
|
25
|
101.6*25.4
|
1220*3660
|
64
|
15.2
|
|
11
|
30
|
38*38
|
1220*3660/1000*4038
|
68
|
15.0
|
|
12
|
30
|
38*38+19*19
|
1220*3660/1000*4038
|
40
|
18.6
|
|
13
|
30
|
40*40+20*20
|
1007*4047
|
42
|
18.0
|
|
14
|
30
|
38*38+12*12*12
|
1220*3660/1000*4038
|
30
|
22.0
|
|
15
|
38
|
38*38
|
1525*3050/1220*3660/1000*4038
|
68
|
19.0
|
|
16
|
38
|
38*38+19*19
|
1220*3660
|
40
|
23.7
|
|
17
|
38
|
40*40+20*20
|
1007*4047
|
42
|
23.5
|
|
18
|
38
|
38*152
|
1220*3660
|
66
|
19.0
|
|
19
|
40
|
40*40
|
1007*4047
|
66
|
20.0
|
|
20
|
50
|
38*38
|
1220*3660
|
56
|
42.0
|
|
21
|
50
|
50*50
|
1220*3660
|
78
|
21.2
|
|
22
|
60
|
38*38
|
1220*3660
|
54
|
51.5
|
|
Notes: the letter P following the No. means this grating could be supplied with phenolic resin. |
|||||
FRP Molded Grating Loading Table:
25mm 38x38mm
|
Span（mm） |
Concentrated Line Load （kg/m） |
Max Load |
|||||
|
75 |
150 |
300 |
450 |
600 |
750 |
||
|
450 |
0.559 |
1.146 |
2.159 |
3.073 |
4.115 |
4.75 |
3910 |
|
600 |
0.864 |
1.702 |
3.505 |
5.156 |
6.706 |
8.173 |
2924 |
|
900 |
2.896 |
5.918 |
12.116 |
18.44 |
—— |
—— |
1948 |
|
1200 |
5.715 |
11.633 |
—— |
—— |
—— |
—— |
1461 |
|
|
|||||||
|
Span（mm） |
Uniform Load （kg/m²） |
Max Load |
|||||
|
240 |
480 |
980 |
1450 |
2450 |
3650 |
||
|
450 |
0.66 |
1.092 |
1.93 |
2.769 |
4.47 |
6.579 |
—— |
|
600 |
1.118 |
2.108 |
4.14 |
6.172 |
10.211 |
15.265 |
—— |
|
750 |
3.667 |
5.387 |
10.82 |
16.28 |
—— |
—— |
—— |
|
900 |
5.537 |
11.176 |
21.717 |
—— |
—— |
—— |
—— |
30mm
38x38mm
| Span（mm） | Concentrated Line Load （kg/m） | Max Load | |||||
| 75 | 150 | 300 | 450 | 750 | 1500 | ||
| 300 | <0.254 | <0.254 | 0.254 | 0.508 | 0.762 | 1.524 | 9923 |
| 450 | 0.254 | 0.508 | 1.106 | 1.524 | 2.54 | —— | 4828 |
| 600 | 0.508 | 1.27 | 2.286 | 3.556 | 5.842 | —— | 4112 |
| 750 | 1.27 | 2.54 | 4.826 | 7.366 | 12.446 | —— | 3174 |
| 900 | 1.778 | 3.81 | 7.62 | 11.43 | —— | —— | 2637 |
|
|
|||||||
| Span（mm） | Uniform Load （kg/m²） | Max Load | |||||
| 350 | 500 | 750 | 1000 | 1500 | 2500 | ||
| 300 | <0.254 | <0.254 | <0.254 | <0.254 | 0.254 | 0.508 | 32501 |
| 450 | 0.254 | 0.508 | 0.762 | 1.106 | 1.524 | 2.286 | 21661 |
| 600 | 1.016 | 1.524 | 2.286 | 2.794 | 4.318 | 7.366 | 12981 |
| 750 | 2.54 | 3.81 | 5.842 | 7.62 | 11.684 | —— | 8396 |
| 900 | 4.572 | 7.112 | 10.668 | —— | —— | —— | 5758 |
38mm
38x38mm
| Span（mm） | Concentrated Line Load（kg/m） | Max Load | |||||
| 75 | 150 | 300 | 450 | 600 | 750 | ||
| 300 | 0.279 | 0.356 | 0.483 | 0.61 | 0.762 | 0.889 | 17116 |
| 600 | 0.356 | 0.66 | 1.245 | 1.85 | 2.464 | 3.073 | 8718 |
| 900 | 0.864 | 1.803 | 3.683 | 5.563 | 7.417 | 9.296 | 5817 |
| 1200 | 2.261 | 4.749 | 9.677 | 14.63 | 19.583 | —— | 3755 |
|
|
|||||||
| Span（mm） | Concentrated Line Load （kg/m） | Max Load | |||||
| 240 | 480 | 980 | 1450 | 2450 | 3650 | ||
| 300 | 0.254 | 0.305 | 0.381 | 0.457 | 0.635 | 0.838 | —— |
| 600 | 0.432 | 0.813 | 1.549 | 2.311 | 3.8354 | 5.74 | —— |
| 900 | 1.702 | 3.454 | 6.959 | 10.465 | 17.475 | —— | —— |
| 1200 | 5.969 | 12.167 | 24.511 | —— | —— | —— | —— |
50mm
50x50mm
| Span（mm） | Concentrated Line Load （kg/m） | Max Load | |||||
| 75 | 150 | 300 | 450 | 600 | 750 | ||
| 300 | 0.279 | 0.305 | 0.406 | 0.483 | 0.635 | 1.041 | 21727 |
| 600 | 0.356 | 0.508 | 0.813 | 1.128 | 1.753 | 3.327 | 11713 |
| 900 | 0.508 | 1.118 | 2.235 | 3.2 | 5.156 | 10.058 | 7780 |
| 1200 | 0.914 | 1.93 | 3.937 | 5.918 | 9.957 | —— | 5834 |
|
|
|||||||
| Span（mm） | Uniform Load （kg/m²） | Max Load | |||||
| 240 | 480 | 980 | 1450 | 2450 | 3650 | ||
| 300 | 0.254 | 0.279 | 0.33 | 0.381 | 0.483 | 0.737 | —— |
| 600 | 0.381 | 0.584 | 0.965 | 1.372 | 2.134 | 4.115 | —— |
| 900 | 1.194 | 2.108 | 3.937 | 5.766 | 9.449 | 18.593 | —— |
| 1200 | 2.413 | 4.928 | 9.954 | 14.961 | —— | —— | —— |
FRP Molded Grating Surface:
|
Real |
Surface |
Service |
|
|
Concave surface |
Anti-skid, easy clean; |
|
|
Grit surface |
Anti-skid and good abrasion (The grit could be fine, middle and coarse)； |
|
|
Smooth surface |
Free clean, contaminant non stay |
|
|
Chequer cover surface |
Anti-skid, easy clean, odour isolation; |
|
|
Grit cover surface |
Anti-skid, good abrasion (The grit could be fine, middle and coarse), odour isolation |
Standard Resin Systems:
|
ONFR |
Polyester resin system, Good corrosion resistance, Non fire resistance; |
|
OFR |
Polyester resin system, Good corrosion resistance, Fire resistance ASTM E-84 Class 1; |
|
ISOFR |
Premium grade Isophthalic Polyester resin system, excellent corrosion resistance, Fire resistance ASTM E-84 Class 1; |
|
VEFR |
Vinyl Ester resin system, Maximum corrosion resistance, Fire resistance ASTM E-84 Class 1; |
|
PHE |
Phenolic resin system, High temperature service, Low flame spread index, low smoke developed index and low toxicity. |
FRP Molded Grating Chemical Properties Guide
|
Chemicals |
Concentration（%） |
Maximum service temperature |
||
|
Vinyl ester resin |
Iso resin |
Ortho resin |
||
|
Acetic acid |
50 |
82 |
30 |
20 |
|
Chromic acid |
20 |
38 |
No |
No |
|
Nitric acid |
5 |
70 |
48 |
25 |
|
Phosphoric acid |
85 |
100 |
65 |
No |
|
Sulfuric acid |
25 |
100 |
52 |
20 |
|
Hydrochloric acid |
<10 |
100 |
52 |
No |
|
20 |
90 |
38 |
No |
|
|
37 |
65 |
No |
No |
|
|
Hydrotropic acid |
25 |
93 |
38 |
No |
|
Lactic acid |
100 |
100 |
52 |
40 |
|
Benzoic acid |
All |
100 |
65 |
------ |
|
Aluminum hydroxide |
All |
82 |
45 |
No |
|
Aqueous ammonia |
28 |
52 |
30 |
No |
|
Sodium hydroxide |
10 |
65 |
20 |
No |
|
25 |
65 |
No |
No |
|
|
50 |
70 |
No |
No |
|
|
Ammonium sulfate |
All |
100 |
60 |
50 |
|
Ammonium chloride |
All |
100 |
82 |
60 |
|
Ammonium bicarbonate |
All |
52 |
No |
No |
|
Copper chloride |
All |
100 |
65 |
60 |
|
Copper cyanide |
All |
100 |
No |
No |
|
Ferric chloride |
All |
100 |
65 |
60 |
|
Ferrous chloride |
All |
100 |
60 |
50 |
|
Manganese sulfate |
All |
100 |
65 |
45 |
|
Sodium cyanide |
All |
100 |
------ |
------ |
|
Potassium nitrate |
All |
100 |
65 |
40 |
|
Zinc sulfate |
All |
100 |
65 |
45 |
|
potassium nitrate |
100 |
100 |
65 |
40 |
|
Potassium dichromate |
100 |
100 |
60 |
40 |
|
Ethylene glycol |
100 |
100 |
65 |
40 |
|
Propylene glycol |
100 |
100 |
65 |
40 |
|
Gasoline |
100 |
80 |
60 |
35 |
|
Glucose |
100 |
100 |
38 |
No |
|
Glycerin |
100 |
100 |
65 |
60 |
|
Hydrogen peroxide |
30 |
38 |
--- |
--- |
|
Dry chlorine gas |
100 |
82 |
38 |
No |
|
Wet chlorine gas |
All |
82 |
No |
No |
|
Vinegar |
100 |
100 |
65 |
30 |
|
Distilled water |
100 |
93 |
60 |
25 |
|
fresh water |
100 |
100 |
70 |
40 |
