Pultruded Fiberglass Components

About Us

Established in 1976, Mihir Engineers Limited today is one of the largest manufacturers of FRP and RCC Cooling Towers with over 27,000 installations in India & abroad

It gives us immense pride in introducing our new group company “Stronglite Composites”. Stronglite Composites specializes in range of PULTRUDED FRP profiles.

Our Pultruded profiles are manufactured at a state of the art Pultrusion Manufacturing Facility equipped with a state of the art Material Testing Facility at Rajpur in Gujarat giving us complete control over Design, Manufacturing and Quality Control for these components.

All our profiles are tested and certified to possess mechanical properties comparable to steel by the Department of Aerospace Engineering at IIT Madras

Pultrusion Process

Pultrusion is a continuous process for manufacture of composite materials with constant cross-section

The unique advantages possible with FRP have enabled pultruded profiles to penetrate markets where other materials could not meet the design or end use requirements efficiently

Pultruded Fiberglass v/s Traditional Materials

Physical & Chemical Properties

Pultruded FRP

Rigid PVC

Mild Steel

Stainless Steel

Wood

Specific Gravity 1.8 1.38 7.8 7.92 0.52

Thermal Conductivity

(Kcal/hr/m2/° C)

24.4 6.4 1220 732.00 0.4

Coeff. of Linear Expansion

(cm/cm° C) x 10-6

5.2 37 8 10 1.7

Safe Working Temp. (° C)

130 55 600 600 160

Flame Resistance Good* Poor Excellent Excellent Poor

Corrosion Resistance

a. Acidic Excellent Good Poor Excellent Poor

b. Alkaline Good Fair Good Excellent Poor

c. Solvents Fair Poor Good Excellent Fair

d. Coastal Environment

Excellent Good Poor Excellent Fair

e. Outdoor Exposure

Excellent Poor Fair Excellent Fair

f. Effluent Water Excellent Good Poor Excellent Fair

g. Steam Good Poor Fair Excellent Fair

Mechanical Properties PultrudedFRP

RigidPVC

MildSteel

StainlessSteel

Wood

Tensile Strength(N/mm2)

382 44 340 340 80

Flexural Strength(N/mm2)

468.3 70 380 380 12

Flexural Modulus(N/mm2)

22489 2400 196000

196000 700

Izod Impact(Kg.m/cm)

2.15 0.09 1.5 0.53 -

Pultruded Fiberglass v/s Traditional Materials

Product Advantages

Corrosion Resistance FRP structural products are corrosion resistant to a broad

range of chemicals. In many structural applications where wood rots and metals corrode, pultruded FRP products will last indefinitely with little or no maintenance.

Strength Stronglite's pultruded structural shapes have a high

strength-to-weight ratio and pound for pound are stronger than steel in the lengthwise direction.

Weight FRP materials are light weight. Generally on an equal

volume basis, pultruded fiberglass will weigh only 25% of the weight of steel and 70% of the weight of aluminum. This feature can significantly impact installation costs, reduce the risk for injury and result in less structural support from foundations or supporting structures

Product Advantages

Electrical Conductivity Fiberglass products are extremely low in electrical

conductivity. Nonconductive products provide significant safety benefits in many applications such as those found in electrical substations products and power poles

Thermal Conductivity Fiberglass products are low in thermal conductivity and

FRP products do not expand or contract like metals. This feature can provide a significant degree of thermal insulation

Ease of Fabrication FRP can be field fabricated using simple carpenter tools

with carbide or diamond tip blades; no torches or welding is required. Fiberglass materials are also lightweight, resulting in easier erection and installation.

Various Products & Markets

Pultruded Fiberglass Profiles can be used in various applications: Structural Applications – Cooling Towers, Work

Platforms, Structural Beams, Scaffolding Electrical Applications – Utility Poles, Cross Arms Access Systems – Ladders, Staircases & Related

Structures Gratings - Walkways, Maint. & Operator’s

Platforms, Machine Decks, Floors, Pallets, Covers (for Tanks, Gutters & Trenches etc.)

Cable Trays Systems - Perforated & Ladder Type with all accessories

Fiberglass Pultruded Grating FRP Grating made out of pultruded section is an ideal

solution for the corrosion problems faced in Industrial environments

It is an ideal replacement for steel or aluminum gratings used in highly corrosive atmosphere

FRP Grating often outlasts steel 20 to 1 times and it is a long term investment, where frequent grating and walkways replacement cost are unacceptable

Mechanical Properties of Fiberglass Pultruded Gratings

Pultruded Gratings are manufactured by assembly of Pultruded I Beams (Load Bearing members) & Pultruded Cross Rods (Cross Locking members)

The distance between the I Beams is 40 mm, whereas the distance between the Cross Rod varies as per the Load requirement of the application.

Cross Rod Distance

Recommended Load

I-Beam Size 25 MM

I-Beam Size 30 MM

300 MM 400 Kg/ Sq. Mtr 500 Kg/ Sq. Mtr

200 MM 500 Kg/ Sq. Mtr. 750 Kg/ Sq. Mtr

150 MM 750 Kg/ Sq. Mtr. 1000 Kg/ Sq. Mtr

90 MM 1000 Kg/ Sq. Mtr. 1250 Kg/ Sq. Mtr

Cable Management System

FRP Cable Trays are of the highest quality, they are strong, chemical resistant, fire retardant, Have electric insulation and are UV protected.  

FRP Cable Trays are lightweight, cut to length and can be quickly installed.

Handrails & Ladder Systems

FRP Handrail, Ladders and Access Systems offer long life, low maintenance solutions

Our Access Systems are lightweight and offer high resistance towards corrosion. Easy to fabricate, the installed cost of composite Handrails and Ladders is often lower than that of steel

Being a fiberglass reinforced composite, the handrails and ladders are thermally and electrically non conductive, offer excellent UV resistance and are extremely durable in extreme outdoor environments

Fiberglass Crossarms

Fiberglass Crossarms are designed for the standard crossarm load capacity as specified by Bureau of Indian Standards IS 10192-1982 (Reaffirmed in2005)

Fiberglass Crossarms offer the following advantages High Strength Light Weight Long Life Easier to install Excellent Electrical Properties

Fiberglass Crossarms As Alternative to Steel Crossarms

ADVANTAGE OVER CONVENTIONAL CROSS ARMS

PROPERTIES STEEL WOOD FIBRE GLASS

INSULATIONGOOD

CONDUCTORBAD

CONDUCTORINSULATOR

CORROSIONHIGH

CORROSION

ROTS & DETERIORATE

S

NON CORROSIVE

WEIGHT HEAVY HEAVY LIGHT

INSTALLATION CUMBERSOME CUMBERSOME EASY

Cooling Tower Solutions

There is an increasing demand for the use of composites in cooling tower applications

We manufacture a complete range of composite products for use in Cooling Towers including

Pultruded Structural Frame

Pultruded Decking

Partition Walls & Claddings

Pultruded Stairways & Walk Ways

Ladders & Handrails LouversCable Management Systems

Thank You