FRP grating data sheet

A Fibreglass Reinforced Plastic (FRP) grating data sheet provides detailed technical specifications, properties, and characteristics that are essential for selecting the right grating for specific applications. Below is a typical FRP grating data sheet, covering common parameters such as mechanical properties, resin types, physical dimensions, and application information.

1. Product Description

Product Name: Fibreglass Reinforced Plastic (FRP) Grating
Type: Moulded or Pultruded Grating
Mesh Pattern: Square, Rectangular, or Custom Mesh
Application Areas: Chemical Plants, Wastewater Treatment, Marine Platforms, Walkways, Industrial Flooring, etc.

2. Materials

Fibreglass Reinforcement: E-glass continuous strands
Resin Matrix:
- Polyester Resin: General-purpose, good corrosion resistance
- Vinyl Ester Resin: High chemical resistance, suitable for harsh environments
- Epoxy Resin: High mechanical strength, excellent heat resistance

3. Standard Sizes

Panel Size	Mesh Size	Thickness	Open Area (%)
1220 mm x 3660 mm	38 mm x 38 mm	25 mm	60%
1000 mm x 3000 mm	40 mm x 40 mm	30 mm	65%
915 mm x 3050 mm	50 mm x 50 mm	38 mm	68%
Custom sizes available upon request.

4. Mechanical Properties

Property	Unit	Value (Moulded)	Value (Pultruded)
Tensile Strength	MPa	100	240
Flexural Strength	MPa	150	400
Modulus of Elasticity	GPa	7.0	22.0
Impact Resistance	kJ/m²	100	160
Compressive Strength	MPa	200	275
Shear Strength	MPa	85	115
Barcol Hardness	ASTM D2583	35	45
Load Bearing Capacity	kN/m²	35	50

5. Thermal Properties

Property	Unit	Value
Thermal Expansion Coefficient	mm/°C	30 x 10⁻⁶
Heat Deflection Temperature	°C	105 (Polyester)
Operating Temperature Range	°C	-50 to +105
Thermal Conductivity	W/mK	0.3

6. Electrical Properties

Property	Unit	Value
Dielectric Strength	kV/mm	10
Volume Resistivity	ohm-cm	10¹⁴
Surface Resistivity	ohms	10¹²
Electrical Conductivity	–	Non-conductive

7. Chemical Resistance

Acid Resistance: Excellent (suitable for sulfuric acid, hydrochloric acid)
Alkali Resistance: Excellent (resists sodium hydroxide, ammonium hydroxide)
Salt Water Resistance: Excellent (ideal for marine and coastal environments)
Solvent Resistance: Good (resistant to most organic solvents)

Note: Chemical resistance varies by resin type. Vinyl ester resin is typically more resistant than polyester resin in corrosive environments.

8. Physical Properties

Property	Unit	Value
Density	g/cm³	1.8
Water Absorption	% (24 hours)	0.2
Slip Resistance (with grit)	–	R13 (DIN 51130)
Fire Resistance (ASTM E84)	–	Class 1 or Class 2
UV Resistance	–	UV stabilized

9. Grating Load-Deflection Table

Based on uniform load conditions for 1 m x 1 m panels.

Grating Type	Span (mm)	Deflection at 1 kN Load (mm)	Max Load Capacity (kN/m²)
25 mm Thick	600 mm	4.5 mm	25
30 mm Thick	800 mm	5.0 mm	30
38 mm Thick	1000 mm	6.0 mm	35
50 mm Thick	1200 mm	7.0 mm	50

10. Standards and Certifications

ASTM D635: Test method for flame resistance of plastics
ASTM D256: Test method for impact resistance of plastics
ASTM D790: Test method for flexural properties
ISO 9001: Quality management system certification
ISO 14001: Environmental management system certification

11. Applications

Industrial Walkways: Corrosion-resistant platforms for chemical plants and oil refineries.
Marine Decking: Non-slip, corrosion-resistant panels for offshore platforms and docks.
Water Treatment Plants: Used in environments exposed to chemicals and water.
Stair Treads: Safe, slip-resistant surfaces for industrial stairways.
Electrical Enclosures: Non-conductive panels for safety around electrical installations.

12. Installation Guidelines

Fasteners: Stainless steel clips or hold-downs should be used to secure the grating to the supporting structure.
Support Spacing: Proper support spacing must be followed to prevent excessive deflection under load. Refer to the load-deflection table for recommendations.
Edge Treatment: Edges should be sealed to prevent moisture ingress and extend product life.
Cutting: Grating can be cut to size using diamond-tipped saws or waterjet cutters.

13. Advantages

Corrosion Resistance: Performs well in chemically aggressive environments.
Lightweight: Easy to install, reducing transportation and labor costs.
Non-Conductive: Safe for use around electrical equipment.
Fire Retardant: Available in fire-retardant versions for enhanced safety.
Low Maintenance: Does not rust, rot, or require painting.

Notes:

This data sheet provides general guidelines and specifications. Actual values may vary based on custom configurations and specific resin types.
For specific chemical resistance data, request the Chemical Resistance Guide from the manufacturer based on the intended application environment.

This data sheet provides a comprehensive overview of the properties and performance of FRP gratings to help engineers and purchasers make informed decisions about the best type of FRP grating for their needs.