Molded FRP Grating

Molded FRP Grating, also known as fiberglass reinforced plastic grating, is a lightweight yet high-strength composite flooring solution. Manufactured by molding continuous fiberglass rovings with thermosetting resin, this grating provides outstanding resistance to chemicals, moisture, and UV exposure. It is commonly used in industrial walkways, platforms, marine decks, wastewater plants, and offshore structures where traditional steel or aluminum grating fails due to rust and corrosion.

Product Details
Specification
Packing & Delivery

What is Molded FRP Grating?

Molded FRP grating is a composite grating product formed through a precision molding process. Fiberglass strands are saturated with resin and placed in a mold, then cured under heat and pressure. The result is a one-piece, integral mesh panel that combines strength, chemical resistance, and slip protection.

Unlike metal gratings, molded FRP grating does not rust, conduct electricity, or require repainting. Its uniform construction provides equal strength in both directions, making it reliable for long-term use in harsh working environments.

Key Features of Molded FRP Grating

Corrosion Resistance – Withstands acids, alkalis, and solvents better than steel or aluminum.
Slip Resistance – Standard grit surface ensures worker safety in wet or oily conditions.
Lightweight but Strong – Easy to handle, install, and cut without heavy equipment.
Non-Conductive & Fire-Retardant – Safer for use in electrical and flammable environments.
Maintenance-Free – Long service life without frequent painting or coating.

Technical Specifications

Parameter	Details
Material	Fiberglass Reinforced Plastic (FRP)
Manufacturing Process	Molding with thermosetting resin
Resin Types Available	Isophthalic, Orthophthalic, Vinyl Ester, Phenolic
Panel Thickness	25 mm, 30 mm, 38 mm (custom on request)
Standard Panel Sizes	1220 × 3660 mm / 1000 × 3000 mm / customized
Mesh Pattern	Square mesh, rectangular mesh, mini mesh
Surface Options	Gritted, smooth, concave
Load Capacity	Up to heavy-duty pedestrian and light vehicular traffic
Color Options	Green, gray, yellow, custom RAL colors
Standards	ASTM, ISO, EN compliance available

Applications of Molded FRP Grating

Industrial Applications

Walkways and platforms in chemical plants
Floor grating in power stations and wastewater treatment facilities
Trench covers in factories and warehouses

Marine & Offshore

Ship decks, docks, and offshore rigs
Corrosion-proof walkways in saltwater environments

Public Infrastructure

Pedestrian bridges and park walkways
Drain covers in municipal projects

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Advantages for B2B Buyers

Cost-effective alternative to stainless steel grating
Lightweight panels reduce shipping and installation costs
Available in bulk with OEM customization
Suitable for long-term use in aggressive industrial environments

Frequently Asked Questions (FAQ)

Q1: What is the difference between molded FRP grating and pultruded FRP grating?
A1: Molded grating is produced in a mold, giving it uniform strength in both directions, while pultruded grating has higher glass content and greater load-bearing strength in one direction. Molded grating is more suitable for corrosive and pedestrian-heavy environments.

Q2: Can molded FRP grating be customized in size and color?
A2: Yes, we provide custom cutting services and a wide range of RAL colors to meet project-specific requirements.

Q3: Is molded FRP grating fire-resistant?
A3: Yes, depending on resin selection, molded grating can meet ASTM E-84 and other fire-retardant standards.

Q4: How does molded FRP grating compare in cost to steel grating?
A4: The upfront cost may be slightly higher, but the long-term savings from reduced maintenance, corrosion resistance, and lightweight handling make it more economical.

Q5: Where is molded FRP grating most commonly used?
A5: It is widely used in chemical processing plants, offshore oil rigs, shipyards, wastewater treatment facilities, and infrastructure projects requiring durable, anti-slip flooring.

Molded Fiberglass FRP Grating Parameters
Type	Molded FRP Grating
Material	Fiberglass + Resin base (ORTHO,ISO,VE)+Filler(ATH,CAO)
Size	383838mm，404040mm, etc. can be customized
Color	Yellow, Orange, Blue, Green, Grey, etc. can be customized
Surface	Concaved
Properties Hengshui Hongwo Technology Co., Ltd.
Light Weight, High Strength	Low Density (about 1.8), 1/4 of steel ,2/3 of aluminum. Specific strength is superior to ordinary carbon steel. Anti-creeping. Impact endurance.
Safety	Good performance of electric insulation. 10KV no voltage breakdown. No electro-magnetic behavior. No electric spark. Oxygen index≥32, Anti-fire and Pass test of ASTM-E84.
Anti-Corrosion	No rust, resistance to acid, alkali, organic dissolvent and other gas and liquid mixture. It has predominant advantages in anti-corrosion field.
Anti-skid	Different process mode on surface, concave, gritted, increase friction factor. Have good anti-skid function.
Anti-aging	Have more than 20 years effective service life under normal outdoor working condition.
Anti-fatigue	Moderate flexibility reduces the workers` pressure on legs and waist which is more comfortable
Attractive appearance & easy maintenance	have alternative and bright colors. Non-fading. Easily for clean.
Excellent economic benefits’	Excellent comprehensive economic benefits

Size: grid size: 38x38mm

Grille thickness(mm)	Rib wall thickness	Grid size (mm)	Length x width(mm)	The weight (kg/m2)	Permeability %
13	6.0/5.0	38×38	1200×3600, 1200×4000 1200×2440, 1268×4010 915×3050	6.0	78
14	6.0/5.0	38×38	1200×3600, 1200×4000 1200×2440, 1268×4010 915×3050	6.5	78
20	6.0/5.0	38×38	1220×3660, 1220×4000 1524×4010, 997×3012	9.8	65
25	6.0/5.0	38×38	1220×3660, 1226×4010 1532×4010, 915×3050 1524×4000, 997×3012	12.3	68
30	6.5/5.0	38×38	1220×3660, 1220×4010 915×3050, 1524×4010	14.6	68
38	7.0/5.0	38×38	1200×3660, 1220×4010 1524×4038, 2100×4010 998×4010, 1220×2440 915×3050, 1532×4010 1532×3050, 1000×4000	19.5	68
50	9.5/7.5	38×38	1220×4010, 1220×3660 1230×4010, 1220×2440 915×3050	42	56
60	10.5/8.5	38×38	1230×4010	50.4	54
65	9.5/6	38×38	1220×3660	37	68

Size: grid size: 40x40mm

Grille thickness(mm)	Rib wall thickness	Grid size (mm)	Length x width(mm)	The weight (kg/m2)	Permeability %
25	7.0/5.0	40×40	1007×3007, 1007×4047 1527×4047	12.3	67
30	7.0/5.0	40×40	1527×4047, 1007×3007 1247×4047	14.6	67
38	7.0/5.0	40×40	1527×4047, 1247×4047 1007×3007, 1007×4047	19.2	67
40	7.0/5.0	40×40	1527×4047, 1007×3007 1007×4047, 1247×4047	19.5	67

Size: grid size: 50x50mm

Grille thickness(mm)	Rib wall thickness	Grid size (mm)	Length x width(mm)	The weight (kg/m2)	Permeability %
15	6.0/5.0	50×50	1220×4000, 1220×3660 1220×2440	5.9	82
20	6.8/5.0	50×50	1787×4530, 1225×4530	18.2	80
25	7.0/5.0	50×50	1220×3660, 1220×2440 915×3050	11.5	78
50	8.0/5.0	50×50	1524×4000, 1220×3660 1220×2440, 1220×4000 915×3050, 1532×4020	23.7	78
63	8.3/6.0	50×50	1225×4000, 1225×3660 1225×2440, 915×3050	28.8	78

Performance Table Of FRP Grating: Linear Load

Grid size: 38x38x25mm

Span deflection	Kg/m						Breaking point
Span deflection	75	150	300	450	600	750	Breaking point
450	0.559	1.146	2.15	3.073	4.115	4.75	3910
600	0.864	1.702	3.505	5.156	6.706	8.179	2824
900	2.896	5.918	12.116	18.44	—-	—-	1948
1200	5.715	11.63	—-	—-	—-	—-	1461

Grid size: 38x38x30mm

Span deflection	Kg/m						Breaking point
Span deflection	75	150	300	450	750	1500	Breaking point
300	0.254	0.254	0.254	0.508	0.762	1.524	9923.4
450	0.254	0.508	1.016	1.524	2.54	—-	4827.6
600	0.508	1.27	2.286	3.556	5.842	—-	4112.4
750	1.27	2.54	4.826	7.366	12.446	—-	3173.7
900	1.778	3.81	7.62	11.43	—-	—-	2637.3

Grid size: 38x38x38mm

Span deflection	Kg/m						Breaking point
Span deflection	75	150	300	450	600	750	Breaking point
300	0.279	0.356	0.483	0.61	0.76	0.889	17116
600	0.356	0.66	1.245	1.85	2.46	3.073	8718
900	0.864	1.803	3.683	5.563	7.41	9.29	5817
1200	2.261	4.749	9.677	14.63	19.58	—-	3755

Grid size: 50x50x50mm

Span deflection	Kg/m						Breaking point
Span deflection	75	150	300	450	600	750	Breaking point
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	5.8156	10.058	7780
1200	0.914	1.93	3.937	5.918	9.957	—-	5834