GRP & FRP Cable Tray & Ladder

GRP & FRP CABLE SUPPORT SYSTEM

SCM-B Tray supplies Fiber Reinforced Plastic / FRP cable trays and ladders engineered for high corrosion resistance, lightweight installation, and long-term performance in harsh industrial environments.
Our FRP systems are ideal for chemical plants, coastal facilities, offshore platforms, and any location requiring non-metallic cable support solutions.

What is an FRP Straight Cable Tray & Ladder System?

The Cable Support System is designed and manufactured to eliminate the endless problems faced by plant engineers using conventional cable support system made from galvanised steel, aluminium or thermoplastics.

The following are some of the major benefits of the system:

Chemical and Corrosion Resistance

Cable Support System is made from a selection of premium resin reinforced witch glass fibre to from a strong composite which is resistant to most chemicals and Ultra Violet rays. Cable Support System resists acids, salts, alkalis and wide range of aggressive chemicals and solvents.

This property is not superficial, as in coated steel but integrated throughout the components used. Corrosion often initiates from scratches which are caosed while cable are being installed in conventional support system. however this is not a problem with the use of the system. Cable trays and Ladders are also available in fire retardant grade.

Strength Weight Ratio

Cable Support System is fabricated from component derived from a process called Pultrusion. This process enables a high percentage of glass to be incorporated into the components giving it very superior strength. The strength of System in relation to its weight therefore exceeds the performance of those of steel or aluminium.

Easy of Installation

The weight of the pultured component used is approximately one quarter the wight of steel two thirds of aluminium. Unlike stainless steel, pultruded components are easier to handle and can be drilled or cut on site using handtools. Lower installation cost would contribute to substantial savings.

Non Conductive

Cable Support System does not conduct electricity and therefore would not pose any hazards of electrical shocks. As it is non conductive, electrolytic corrosion associated with metal supports would not be a problem. Cable Trays are available in standard straight lengths of 3 meter and in resin selection of Isophthalic Polyester (ISO) ande Isopthalic Polyester Fire Retardant grade (ISO-FR).

RESIN SYSTEM

All resin systems have UV absorbers and surface veils are incorporated to further enhance resistance to chemical and UV attacks.

Isophthalic Polyester This is a premium grade polyester resin which provides good chemical resistance with high physical properties.
Vinilester This is a special novolac chemical resin system suitable for severe corrosion applications requiring better resistance to alkaline and acidic environments. It has good resistance against hydrocarbons and organic solvents.
Fire Retardant Isophthalic Polyester This is a premium grade polyester resin which meets ASTM E-84, with index less than 25, and meets self extinguishing requirements of ASTMD-635. This resin also archived a class 2 rating on BS476 Part 7 and a Class V0 on UL94.

The Pultrusion Process

Is State-of-the-Art technology which allows continuous production eg, high strength, structural sections thereby eliminating the risk of process variability and lower strength inherent in the manual production of these critical composites.

Is controllable to an optimum degree which ensures consistent production at any level of product performance requirement.

Is capable of repeatability regardless of any time delay between runs or specific operator expertise, experience or state of mind.

The pultrusion process thereby eliminates the factor of manual processing and provides a consistent, quality product with physical properties that can be accurately predicted from established engineering data and procedure.

Product Benefit Features

Common to all FRP & GRP series are these important advantages that the pulturuded components inherently provide :

Fire Retardancy.
Corrosion Resistance
Electrically Non- Conductive
High Fatigue & Impect Strength
Transparent To Electronmagnetic Waves
Shape Versatility
Low Thermal Conductivity
High Strength & Light Weight
Resistance To Chipping And Cracking
Predictable & Repeatable Physical Properties

FRP Cable Support System Advantages Compared to Metallic Type

High Strength – Higher Strength than structural steel on a weight to weight ratio.
Impact Resistance – Return to original position without any permanent deformation or defletion.
Light Weight – FRP Pultrusion is light weight, approximately 80% less than steel 30% less than aluminium.
Corrosion Resistant – Pultruded FRP are resistant against rust, pealing orflaking and also broadly impervious to many types of chemicals.
Non-Conductive – Some of the main properties of FRP are that it has low thermal conductivity and are non-conductive.
Electro-Magnetic Transparency – Pultruded FRP are Transparent to radio waves, microwaves, and other electromagnetic frequencies.
Dimensional Stability – The coefficient of thermal expansion of pultruded FRP products are marginally less than steel and aluminium.
Low Temperature – FRP has excellent mechanical properties at low temperatures.
Fire Retardancy – All Beta cable support system components meet BS 476 pert 7 class II as standard. Higher requirements are available as options.
Ultraviolet Stability – All Beta FRP products incorporate additives and veils to protect them from UV attacks.
Easy Installation – Easy to cut and drill using basic hand tools at site. Require not hot work.

Our Products

Chemical Compatibility Guide

CHEMICAL ENVIRONMENT	ISO			VINYL ESTER			CHEMICAL ENVIRONMENT	ISO			VINYL ESTER
	Wt %	Temp		Wt %	Temp			Wt %	Temp		Wt %	Temp
	Wt %	°F	°C	Wt %	°F	°C		Wt %	°F	°C	Wt %	°F	°C
Acetic Acid	10	190	88	10	210	99	Lactic Acid	SAT	170	77	SAT	200	93
Acetic Acid	50	125	52	50	180	83	Lead Acetate	SAT	170	77	SAT	200	93
Aluminium Chlorine	SAT	170	77	SAT	200	93	Lead Chloride	SAT	140	60	SAT	200	93
Aluminium Hydroxide	SAT	160	71	SAT	170	77	Lead Nitrate	SAT	-	-	SAT	200	93
Aluminium Nitrate	SAT	150	66	SAT	170	77	Linseed Oil	100	150	66	100	190	88
Aluminium Sulfate	SAT	180	82	SAT	200	93	Lithium Chloride	SAT	150	66	SAT	190	88
Ammonium Chloride	SAT	170	77	SAT	190	88	Magnesium Carbonate	SAT	140	60	SAT	170	77
Ammonium Hydroxide	1	100	38	10	150	66	Magnesium Chloride	SAT	170	77	SAT	200	93
Ammonium Hydroxide	28	N/R	N/R	28	100	38	Magnesium Hydroxide	SAT	150	66	SAT	190	88
Ammonium Carbonate	N/R	N/R	N/R	SAT	150	66	Magnesium Nitrate	SAT	140	60	SAT	180	82
Ammonium Bicarbonate	15	125	52	SAT	130	54	Magnesium Sulfate	SAT	170	77	SAT	190	88
Ammonium Nitrate	SAT	160	71	SAT	190	88	Mercuric Chloride	SAT	150	66	SAT	190	88
Ammonium Persulfate	SAT	N/R	N/R	SAT	150	66	Mercurous Chloride	SAT	140	60	SAT	180	82
Ammonium Sulfate	SAT	170	77	SAT	200	93	Mineral Oils	100	170	77	100	200	93
Amyl Alcohol	ALL	N/R	N/R	ALL	90	32	Naptha	100	140	60	100	170	77
Amyl Alcohol Vapor	-	140	60	-	120	49	Nickel Chloride	SAT	170	77	SAT	200	93
Benzene Sulfonic Acid	25	110	43	SAT	200	93	Nickel Nitrate	SAT	170	77	SAT	200	93
Benzoic Acid	SAT	150	66	SAT	200	93	Nickel Sulfate	SAT	170	77	SAT	200	93
Benzoly Alcohol	100	N/R	N/R	100	N/R	N/R	Nitric Acid	5	140	60	5	150	66
Borax	SAT	170	77	SAT	200	93	Nitric Acid	20	70	21	20	100	38
Calcium Carbonate	SAT	170	77	SAT	200	93	Oleic Acid	100	170	77	100	190	88
Calcium Chloride	SAT	170	77	SAT	200	93	Oxalic Acid	ALL	75	24	ALL	200	93
Calcium Hydroxide	25	70	21	25	165	74	Paper Mill Liquors	-	100	38	-	120	49
Calcium Nitrate	SAT	180	82	SAT	200	93	Perchlorethylene	100	N/R	N/R	100	80	27
Calcium Sulfate	SAT	180	82	SAT	200	93	Perchloric Acid	N/R	N/R	N/R	10	150	66
Carbon Disulfide	N/R	N/R	N/R	N/R	N/R	N/R	Perchloric Acid	N/R	N/R	N/R	30	80	27
Carbonic Acid	SAT	130	54	SAT	180	82	Phosphoric Acid	10	160	71	10	200	93
Carbon Dioxide Gas	-	200	93	-	200	93	Phosphonic Acid	100	120	49	100	200	93
Carbon Monoxide Gas	-	200	93	-	200	93	Potassium Aluminium Sulfate	SAT	170	77	SAT	200	93
Carton Tetrachloride	N/R	N/R	N/R	100	75	24	Potassium Bicarbonate	50	80	27	50	140	60
Chlorine, Dry Gas	-	140	60	-	170	77	Potassium Carbonate	10	N/R	N/R	10	120	49
Chlorine, Wet Gas	-	N/R	N/R	-	N/R	N/R	Potassium Chloride	SAT	170	77	SAT	200	93
Chlorine Water	SAT	N/R	N/R	SAT	90	32	Potassium Dichromate	SAT	170	77	SAT	200	93
Chromic Acid	5	70	21	10	120	49	Potassium Hydroxide	N/R	N/R	N/R	25	150	66
Citric Acid	SAT	170	77	SAT	200	93	Potassium Nitrate	SAT	170	77	SAT	200	93
Copper Chloride	SAT	170	77	SAT	200	93	Potassium Permagante	SAT	75	24	SAT	200	93
Copper Cyanide	SAT	170	77	SAT	200	93	Potassium Sulfate	SAT	170	77	SAT	200	93
Copper Nitrate	SAT	170	77	SAT	200	93	Propylene Glycol	ALL	170	77	ALL	200	93
Crude Oil, Sour	100	170	77	100	200	93	Phthalic Acid	-	-	-	SAT	200	93
Cyclohexane, Vapor	ALL	100	38	ALL	130	54	Sodium Acetate	SAT	160	71	SAT	200	93
Diesel Fuel	100	160	71	100	180	82	Sodium Benzoate	SAT	170	77	SAT	200	93
Diethyl Ether	N/R	N/R	N/R	N/R	N/R	N/R	Sodium Bicarbonate	SAT	160	71	SAT	175	79
Dimethyl Phthalate	N/R	N/R	N/R	100	80	27	Sodium Bisulfate	ALL	170	77	ALL	200	93
Ethanol	50	75	24	50	90	32	Sodium Bromide	ALL	170	77	ALL	200	93
Ethyl Acetate	N/R	N/R	N/R	N/R	N/R	N/R	Sodium Carbonate	10	80	27	35	160	71
Ethylene Chloride	N/R	N/R	N/R	N/R	N/R	N/R	Sodium Chloride	SAT	170	77	SAT	200	93
Ethylene Glycol	100	90	32	100	200	93	Sodium Cyanide	SAT	170	77	SAT	200	93
Fatty Acids	SAT	180	82	SAT	200	93	Sodium Hydroxide	N/R	N/R	N/R	10	150	66
Ferric Chloride	SAT	170	77	SAT	200	93	Sodium Hydroxide	N/R	N/R	N/R	25	80	27
Ferric Nitrate	SAT	170	77	SAT	200	93	Sodium Hypochlorite	N/R	N/R	N/R	10	150	66
Ferric Sulfate	SAT	170	77	SAT	200	93	Sodium Monophosphate	SAT	170	77	SAT	200	93
Ferrous Chloride	SAT	170	77	SAT	200	93	Sodium Nitrate	SAT	170	77	SAT	200	93
Fluoboric Acid	N/R	N/R	N/R	SAT	165	74	Sodium Sulfate	SAT	170	77	SAT	200	93
Fluosilicic Acid	N/R	N/R	N/R	SAT	75	24	Sodium Thiosulfate	ALL	100	38	ALL	120	49
Formaldehyde	50	75	24	50	100	38	Stannic Chloride	SAT	160	71	SAT	190	88
Formic Acid	N/R	N/R	N/R	50	100	38	Sulfated Detergent	0/50	170	77	0/50	200	93
Gasoline	100	80	27	100	150	66	Sulfur Dioxide	100	80	27	100	200	93
Glucose	100	170	77	100	200	93	Sulfur Trioxide	100	80	77	100	200	93
Glycerine	100	150	66	100	200	93	Sulfuric Acid	93	N/R	N/R	93	N/R	N/R
Heptane	100	110	43	100	120	49	Sulfuric Acid	50	N/R	N/R	50	175	79
Hexane	100	90	32	100	130	54	Sulfuric Acid	25	75	24	25	190	88
Hydrobromic Acid	50	120	49	50	120	48	Sulfurous Acid	SAT	80	27	N/R	N/R	N/R
Hydrochloric Acid	10	150	66	10	200	93	Tartaric Acid	SAT	170	77	SAT	200	93
Hydrochloric Acid	20	140	60	20	190	88	Tetrachloroethylene	N/R	N/R	N/R	N/R	N/R	N/R
Hydrochloric Acid	37	75	24	37	95	35	Toluene	N/R	N/R	N/R	N/R	N/R	N/R
Hydrofluoric Acid	N/R	N/R	N/R	15	80	27	Trisodium Phosphate	N/R	N/R	N/R	SAT	175	79
Hydrogen Bromide, Dry	100	190	88	100	200	93	Urea	SAT	130	54	SAT	140	60
Hydrogen Bromide, Wet	100	75	24	100	130	54	Vinegar	100	170	77	100	200	93
Hydrogen Chloride	-	120	49	-	200	93	Water, Distilled	100	170	77	100	190	88
Hydrogen Peroxide	30	N/R	N/R	30	80	27	Water, Tap	100	170	77	100	190	88
Hydrogen Sulfide, Dry	-	140	60	ALL	180	82	Water, Sea	-	170	77	-	190	88
Hydrogen Sulfide, Wet	FUM	140	60	FUM	180	82	Zinc Chloride	SAT	170	77	SAT	200	93
Hypochlorous Acid	10	70	21	20	100	38	Zinc Nitrate	SAT	170	77	SAT	200	93
Isopropyl Alcohol	N/R	N/R	N/R	15	80	27	Zinc Sulfate	SAT	170	77	SAT	200	93
Kerosene	100	140	60	100	180	82

Material Properties

	Units		Polyester		Vinylester
Typical Properties of pultruded fiberglass structural shapes (Except of Solid Rods)
Mechanical (Coupon)
	Imperial	Metric	Imperial	Metric	Imperial	Metric
Longitudinal Direction
Ultimate Tensile Strength	psi	N/mm²	30,000	206	30,000	206
Ultimate Compressive Strength	psi	N/mm²	30,000	206	30,000	206
Ultimate Flexural Strength	psi	N/mm²	30,000	206	30,000	206
Tensile Modulus	10⁶psi	KN/mm²	2.5	17.2	2.6	17.9
Compressive Modulus	10⁶psi	KN/mm²	2.5	17.2	2.6	17.9
Flexural Modulus	10⁶psi	KN/mm²	1.8	11	2.2	11
Ultimate Shear Strength	psi	N/mm²	3,000	20.7	3,000	20.7
Ultimate Bearing Stress	psi	N/mm²	30,000	206	30,000	206
Izod Impact Strength	ft-lbs/in	J/mm	25	1.28	25	1.28
Transverse Direction
Ultimate Tensile Strength	psi	N/mm²	7,000	48.2	7,000	48.2
Ultimate Compressive Strength	psi	N/mm²	15,000	103.4	16,000	110.3
Ultimate Flexural Strength	psi	N/mm²	10,000	68.9	10,000	68.9
Tensile Modulus	10⁶psi	KN/mm²	0.8	5.5	0.8	5.5
Compressive Modulus	10⁶psi	KN/mm²	1	6.9	1	6.9
Flexural Modulus	10⁶psi	KN/mm²	0.8	5.5	0.8	5.5
Ultimate Bearing Stress	psi	N/mm²	30,000	206	30,000	206
Izod Impact Strength	ft-lbs/in	J/mm	4	0.2	4	0.2
Full Section in Bending
Modulus of Elasticity	10⁶psi	KN/mm²	2.6	17.9	2.8	19.3
Tensile Strength	psi	N/mm²	20,000	137.9	25,000	172.4
Compressive Strength	psi	N/mm²	20,000	137.9	25,000	172.4
Electrical
Electric Strength		vpm		200		200
Electric Strength	KV/in		35		35
Dielectric Constant			5.60	5.60	5.60	5.60
Dissipation Factor			0.03	0.03	0.03	0.03
Arc Resistance	sec	sec	0.28	0.28	0.28	0.28
Thermal
Thermal Coefficient of Expansion	in/in °F	mm/mm °C	5x10^-6	8x10^-6	5x10^-6	8x10^-6
Thermal Conductivity	BTU/ft²/hr/°F/in	W.m/m²/°C	4	0.58	4	0.58
Other
Specific Gravity - Solid Shapes - Hollow Shapes			1.80 1.83		1.80 1.83
Water Absorption	Max % by weight		0.60		0.60
Flame Retardant Properties
Flame Retardant Properties		ign/burn, sec		75/75		75/75
Intermitent Flame Test	rating		100	100	100	100
Flammability Test
- Avg.time of burning	sec		5	5	5	5
- Avg. extend of burning	in	mm		15		15
Surface Burning Characteristics (max)	FSI		25	25	25	25

Loading Capacity

WORKING LOAD IN METRIC
NEMA Classification	NEMA 16A, 12B, 8C (NA)		NEMA 20A, 16B, 12C (NB)		NEMA 20B, 16C (NC)		NEMA 20C Super Duty (SD)
SUPPORT SPAN (M)	Max. Allowable Load (kg/m)	Mid Span Defln. (mm)	Max. Allowable Load (kg/m)	Mid Span Defln. (mm)	Max. Allowable Load (kg/m)	Mid Span Defln. (mm)	Max. Allowable Load (kg/m)	Mid Span Defln. (mm)
6.0	64	170	79	113	138	150	211	138
5.7	70	153	88	103	153	135	235	123
5.4	79	138	98	93	171	123	262	110
5.1	88	122	110	83	192	108	293	98
4.8	100	108	125	73	216	95	332	88
4.5	113	95	141	63	247	85	378	78
4.2	130	83	162	55	283	73	433	68
3.9	150	73	189	48	328	63	504	58
3.6	177	60	222	40	384	55	590	50
3.3	211	50	264	35	459	45	704	43
3.0	256	43	319	28	554	38	851	35
2.7	316	35	393	23	685	30	1051	28
2.4	399	28	498	18	867	25	1329	23
2.1	500	20	595	13	1210	20	1797	18
1.8	694	15	883	10	1679	15	1901	10
1.5	959	10	1372	8	2322	10	2957	8

WORKING LOAD IN IMPERIAL
NEMA Classification	NEMA 16A, 12B, 8C (NA)		NEMA 20A, 16B, 12C (NB)		NEMA 20B, 16C (NC)		NEMA 20C Super Duty (SD)
SUPPORT SPAN (FT)	Max. Allowable Load (lb/ft)	Mid Span Defln. (in)	Max. Allowable Load (lb/ft)	Mid Span Defln. (in)	Max. Allowable Load (lb/ft)	Mid Span Defln. (in)	Max. Allowable Load (lb/ft)	Mid Span Defln. (in)
20	43	6.8	53	4.5	93	6.0	142	5.5
19	47	6.1	59	4.1	103	5.4	158	4.9
18	53	5.5	66	3.7	115	4.9	176	4.4
17	59	4.9	74	3.3	129	4.3	197	3.9
16	67	4.3	84	2.9	145	3.8	223	3.5
15	76	3.8	95	2.5	166	3.4	254	3.1
14	87	3.3	109	2.2	190	2.9	291	2.7
13	101	2.9	127	1.9	220	2.5	338	2.3
12	119	2.4	149	1.6	258	2.2	396	2.0
11	142	2.0	177	1.4	308	1.8	472	1.7
10	172	1.7	214	1.1	372	1.5	571	1.4
9	212	1.4	264	0.9	460	1.2	705	1.1
8	268	1.1	334	0.7	582	1.0	892	0.9
7	335	0.8	399	0.5	811	0.8	1205	0.7
6	465	0.6	591	0.4	1126	0.6	1275	0.4
5	643	0.4	920	0.3	1557	0.4	1983	0.3

NA Ladder rated to 50 lb/ft (75 kg/m)
as per NEMA FG 1 – 1993
NB Ladder rated to 75 lb/ft (112 kg/m)
as per NEMA FG 1 – 1993
NC Ladder rated to 100 lb/ft (150 kg/m)
as per NEMA FG 1 – 1993
SD Ladder rated to 200 lb/ft (300 kg/m)

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Frequently Asked Questions

PT. Surya Cakra Mandiri, we aim to provide clear and practical information for engineers, contractors, and project owners looking for reliable cable management systems.

Why choose FRP instead of steel cable trays?

FRP offers superior corrosion resistance, is non-conductive, lightweight, and requires almost zero maintenance.
It is ideal for chemical plants, coastal areas, and outdoor industrial settings.

Is FRP strong enough for heavy cables?

Yes. SCM-B Tray FRP ladders and trays are engineered with high tensile strength, capable of supporting significant cable loads depending on the selected size and thickness.

What environments require FRP cable trays?

FRP is recommended for:

Oil & gas & petrochemical facilities
Wastewater treatment plants
Coastal & marine installations
Chemical processing plants
Outdoor industrial structures

Can you produce custom sizes for FRP trays and ladders?

Yes, we offer custom widths, thicknesses, resin grades, and colors based on your project requirements.

Are FRP trays flame-retardant?

Yes. SCM-B Tray offers Fire Resistant FRP options that meet ASTM E84 and other industrial fire standards.

Is FRP electrically conductive?

FRP is a non-metallic and non-conductive material, making it suitable for cable support systems in environments where electrical insulation and corrosion resistance are important.

Is FRP cable tray lighter than steel cable tray?

Yes. FRP has a good strength-to-weight ratio and is significantly lighter than steel cable support systems. This can make handling and installation easier on site.

Can FRP be cut or drilled during installation?

Yes. FRP can generally be cut or drilled on site using appropriate tools, providing greater flexibility when installation adjustments are required.

Does FRP corrosion resistance come from a surface coating?

No. Unlike steel, which often relies on a protective surface coating, FRP corrosion resistance comes from the characteristics of the composite material itself. This makes FRP suitable for environments exposed to chemicals, salt, moisture, and other corrosive conditions.

How do I choose the right type of FRP for a project?

FRP selection should consider environmental conditions, chemical exposure, load requirements, resin specifications, and fire-resistance requirements. The specification can then be adjusted according to the technical needs of the project.

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Built for Corrosive Environments

Choose lightweight and corrosion-resistant cable support for harsh environments.

GRP & FRP Cable Tray & Ladder

GRP & FRP CABLE SUPPORT SYSTEM

What is an FRP Straight Cable Tray & Ladder System?

RESIN SYSTEM

The Pultrusion Process

Product Benefit Features

FRP Cable Support System Advantages Compared to Metallic Type

Our Products

Chemical Compatibility Guide

Material Properties

Loading Capacity

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