At Eissa Fiber Glass LLC, we specialize in the design, manufacture, and supply of premium GRE (Glass Reinforced Epoxy), GRP (Glass Reinforced Plastic), and GRV (Glass Reinforced Vinyl Ester) tanks. Our tanks are engineered for superior performance, durability, and corrosion resistance across a wide range of applications.

Whether for water storage, chemical processing, fuel containment, or wastewater management, we deliver custom-built solutions that meet the highest industry standards.

GRE (Glass Reinforced Epoxy) Tanks: Tanks made using glass fiber reinforcements in an epoxy resin matrix, known for high chemical resistance and strength.

GRP (Glass Reinforced Plastic) Tanks: Tanks made with glass fibers and thermoset resins (usually polyester or vinyl ester), offering corrosion resistance and versatility.

GRV (Glass Reinforced Vinylester) Tanks: Tanks utilizing glass fibers with Vinylester resins, combining chemical resistance with mechanical strength.

Manufacturing Processes

  1. Filament Winding

    • Most common for GRE, GRP, and GRV tanks.

    • Continuous glass fibers are impregnated with resin (epoxy, polyester, or vinylester) and wound onto a rotating mandrel in precise patterns (helical, hoop) to build up the tank wall.

    • After winding, the tank is cured, removed from the mandrel, and finished with fittings and accessories.

  2. Hand Lay-Up/Lamination

    • Layers of glass fiber mats or fabrics are manually laid onto a mold and saturated with resin.

    • Air bubbles are removed with rollers, and the composite is cured before demolding and trimming.

    • Suitable for custom shapes and small production runs.

  3. Fiber Resin Spraying

    • Automated or semi-automated process where chopped glass fibers and resin are sprayed onto a mold.

    • Used for large-area components and tanks, sometimes combined with sandwich structures for added strength.

Advantages

    • Corrosion Resistance: Excellent for aggressive chemicals and environments.

    • Lightweight: Easier handling and installation compared to steel.

    • Customizable: Can be engineered for specific sizes, shapes, and performance requirements.

    • Low Maintenance: Long service life with minimal upkeep.

Tank Type Resin Used Key Strengths Typical Applications
GRE Epoxy High chemical resistance Chemicals, oil & gas, water
GRP Polyester/Vinylester Versatile, cost-effective Water, chemicals, wastewater
GRV Vinylester Superior corrosion & strength Aggressive chemicals, acids

GRE, GRP, and GRV tanks are advanced composite storage solutions manufactured mainly by filament winding, hand lay-up, or resin spraying, offering high corrosion resistance, strength, and durability for a wide range of industrial applications

Explore our range of tanks:

Water Tanks

Our GRP Water Tanks are designed for safe and hygienic storage of potable and non-potable water. Manufactured under strict quality controls, they are lightweight, corrosion-resistant, and UV-stable,

ensuring long-term reliability even in harsh environmental conditions.

Applications:

  • Residential buildings
  • Commercial complexes
  • Industrial facilities
  • Agricultural irrigation systems

Features:

  • Non-toxic materials compliant with potable water standards
  • High strength-to-weight ratio
  • Modular and sectional designs available

Chemical Tanks

We manufacture GRE/GRV Chemical Tanks for storing a wide variety of aggressive chemicals and acids. Using advanced resin systems and filament winding technology, our chemical tanks offer exceptional resistance to corrosion, high temperatures, and chemical attack.

Applications:

  • Chemical processing plants
  • Oil & gas industry
  • Industrial manufacturing

Features:

  • Customized for specific chemical compatibility
  • High thermal and structural integrity
  • Double-wall and bunded options available for extra safety

Diesel Tanks

Our GRP Diesel Storage Tanks provide a safe, efficient, and maintenance-free solution for fuel storage. Designed to withstand environmental stress, these tanks are ideal for both underground and

above-ground installations.

Applications:

  • Fuel stations
  • Construction sites
  • Backup generator systems
  • Transport & logistics hubs

Features:

  • Leak-proof and corrosion-resistant
  • Long service life with minimal maintenance
  • Anti-static designs available

Sewage Tanks

GRP Sewage Tanks by Eissa Fiber Glass offer durable, watertight solutions for underground or above- ground sewage and wastewater storage. Manufactured to resist microbial attacks and chemical

degradation, they provide a reliable system for wastewater management.

Applications:

  • Residential communities
  • Commercial projects
  • Industrial facilities
  • Remote sites and camps

Features:

  • Odor-tight construction
  • Easy installation and maintenance
  • Custom sizes and configurations

Filament Winding Tanks

Our Filament Winding Tanks are produced using high-precision automated machinery to ensure consistent quality and strength. This advanced manufacturing process results in tanks that are

exceptionally durable, lightweight, and engineered for demanding applications.

Applications:

  • High-pressure storage systems
  • Chemical and fuel storage
  • Marine and offshore applications

Features:

  • Seamless and uniform structure
  • High-pressure and high-impact resistance
  • Designed to international standards (ASTM, BS, ISO)

Rectangular Tanks

Engineered for Strength. Designed for Longevity. Built to Withstand.

At Eissa Fiber Glass LLC, we specialize in the design, manufacturing, and installation of GRP Rectangular Tanks that meet the highest standards of structural integrity, chemical resistance, and hygiene. Our tanks are widely used across water treatment plants, chemical storage facilities, process industries, and commercial infrastructure due to their versatility and superior performance in aggressive environments.

Key Features & Benefits

  • Corrosion Resistant : Manufactured from high-quality Glass Reinforced Plastic (GRP) using isophthalic or vinyl ester resins, our tanks are immune to corrosion caused by water, chemicals, acids, and saline environments.
  • Customizable Dimensions : We offer bespoke tank sizes based on client requirements, ranging from small utility units to large- scale process tanks with or without internal partitions.
  • Lightweight & Durable GRP tanks offer a high strength-to-weight ratio, making them easier to transport, handle, and install— without compromising structural performance.
  • Leak-Proof Construction All seams are reinforced using GRP lamination with mat and roving layers, ensuring 100% leak-proof integrity.
  • Maintenance-Free & Long Service Life UV-resistant topcoats and robust internal lamination allow the tank to perform maintenance-free for 20+ years.
Technical Specifications
Parameter Specification Range
Material GRP with Isophthalic / Vinyl Ester Resin
Capacity Up to 200,000 liters (customizable)n
Wall Thickness 6 mm – 20 mm (depending on capacity/height)n
Internal Finish Food-grade gelcoat / Chemical-resistant liner
Reinforcement C-channel or I-beam with laminated bonding
Panel Type Flat panels with flanged corners or monolithic
Jointing Method Internal GRP lamination (hand lay-up)
Temperature Resistance -30°C to +120°C
UV Resistance Yes (Topcoat or Paint Available)C
Standards Complied BS 4994, ASTM D3299, ISO 14692
Applications
  • Potable Water Storage
  • Treated & Raw Water Tanks
  • Chemical Storage Tanks
  • Effluent and Wastewater Holding
  • Balancing and Mixing Tanks
  • Firefighting Water Tanks
  • RO Plant Feed & Backwash Tanks
  • HVAC & Chiller Water Storage
Optional Features
  • Internal Baffles / Partition Walls
  • Top or Side Manholes
  • HDPE / PVC / CPVC Nozzle Integration
  • Level Indicators & Access Ladders
  • GRP Covers & Sunshades
  • Overflows, Drain, and Inlet/Outlet Connections
  • Chemical-resistant Internal Coatings
Advantages of GRP Rectangular Tanks over Steel or Concrete
  • No risk of rust or scale formation
  • Easier to install in confined or irregular spaces
  • Lighter foundation load compared to RCC or metal tanks
  • No internal coating required after installation
  • Can be installed above ground or underground

Design, Delivery & Installation

At Eissa Fiber Glass, each rectangular tank is custom-designed using AutoCAD & SolidWorks to ensure precision in space utilization, load distribution, and lamination thickness. Our team handles

everything from site measurement and structural design to fabrication, transportation, and on-site lamination installation.

All tanks undergo quality control inspection and hydro-testing prior to handover.

 

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