Heavily corrosive environment (VE)
Intergrate® VE GRP gratings are produced with a high-quality patented vinylester resin combined with a continuously woven fiberglass pattern. There are two types of vinylester resin:
- VE-FR
- VE-XFR
Types of resin
When choosing the type of resin, you need to determine whether the grating must be fire-resistant. You can choose between:
- VE-FR
- VE-FR is a resin that is extremely suitable for a highly corrosive and chemical environment and is highly fire-resistant with controlled spreading of smoke. The abbreviation FR stands for ‘Fire-Retardant’.
- VE-XFR
- VE-XFR is a resin that is extremely suitable for a highly corrosive and chemical environment and is extremely fire-resistant with controlled spreading of smoke. This type of resin has a flame propagation index of 10 and a smoke index of 1100 in accordance with the ASTM E-84 tunnel test. The abbreviation XFR stands for ‘Extra Fire-Retardant’.
Anti-slip class
As standard, all Fiberstruct GRP gratings are produced with an anti-slip class in accordance with BGR 181 and DIN 51130. The slip-resistance of surfaces is categorised in anti-slip classes. These GRP gratings satisfy anti-slip class R13 (greater than 35°, extremely high coefficient of friction).
Class | Angle of inclination |
R 9 | 6° - 10°, low coefficient of friction |
R 10 | > 10° - 19°, normal coefficient of friction |
R 11 | > 19° - 27°, good coefficient of friction |
R 12 | > 27° - 35°, high coefficient of friction |
R 13 | > 35°, very high coefficient of friction |
Available mesh widths
Fiberstruct GRP gratings are available in the following thicknesses and mesh widths:
Grating thickness (in mm) |
Grating mesh width (in mm) centre-to-centre |
Gratins mesh width inside (in mm) |
13 | 51 x 51 | 45 x 45 |
25/30/38 | 38 x 38 | 32 x 32 |
30/38 Micromesh | 19 x 19 | 13 x 13 |
51 | 51 x 51 | 43 x 43 |
RAL colours
- As standard, VE-FR GRP gratings are provided in the colour red-orange RAL 2002 (other colours on request).
- As standard, VE-XFR GRP gratings are provided in the colour grey RAL 7043 (other colours on request).