GRP Lining System  

Seamless, Chemical-Resistant & Waterproof Linings for Tanks and Industrial Structures


The GRP (Glass Reinforced Plastic) Lining System is a composite lining technology that combines fiberglass reinforcement and high-performance resins (polyester, vinyl ester, or epoxy) to create a durable, seamless, and chemically resistant surface.


Widely used across Dubai for water tanks, chemical storage, swimming pools, and industrial containment systems, the GRP Lining System provides long-lasting protection, corrosion resistance, and leak-proof performance. 

100+

Projects Completed

Internal water tank coated with GRP lining system for waterproofing

Purpose & Benefits of GRP Lining in Dubai 

The GRP Lining System is designed to: 

Working Principle 

GRP lining works by combining fiberglass reinforcement with a reactive resin: 

Fiberglass mat or woven roving provides structural strength and dimensional stability 

Resin matrix binds fibers, fills voids, and forms a seamless lining

Curing creates a rigid or semi-flexible, chemical-resistant membrane

Seamless application prevents water, chemical, or effluent penetration 

Bridges minor substrate cracks and imperfections 

Typical GRP Lining Properties: 

PropertyValue
Thickness2–6 mm
Tensile Strength60–120 MPa
Elongation1.5–3% (rigid) / up to 10% (flexible)
Service Life20–30 years
Chemical ResistanceWide spectrum including acids, alkalis, solvents

Applications of GRP Lining in Dubai 

Potable and non-potable water tanks 

Industrial chemical storage tanks 

Sewage and effluent treatment plants 

Piping systems, ducts, and conduits 

Swimming pools, water features, and reservoirs 

Podiums, basements, and structural concrete lining 

Step-by-Step Application Process 

Surface Preparation

  • Clean concrete or metal substrate, removing dust, grease, laitance, and loose particles
  • Repair cracks or voids with polymer-modified mortar or epoxy filler
  • Abrade smooth surfaces for better mechanical adhesion
  • Priming

  • Apply a resin-based primer to enhance adhesion
  • Allow primer to tack-off according to manufacturer guidelines
  • Gel Coat (Optional)

  • Apply 0.3–0.5 mm gel coat for exposed surfaces or chemical contact
  • Provides additional chemical resistance and smooth finish 
  • GRP Laminate Application

  • Cut fiberglass mat or woven roving to size
  • Mix resin with catalyst/hardener
  • Apply resin to substrate and lay fiberglass reinforcement, saturating completely
  • Apply multiple layers to achieve design thickness (2–6 mm)
  • Ensure overlaps at joints for seamless lining
  • Curing

  • Allow initial cure (6–24 hours depending on resin)
  • Full chemical and mechanical resistance develops within 24–48 hours
  • Inspection & Testing

  • Inspect for air pockets, voids, or dry spots
  • Perform water filling or leakage tests
  • Optional chemical immersion tests for industrial tanks
  • Worker preparing wall substrate for membrane waterproofing system installation
    Worker cutting expansion joint grooves on a concrete surface.

    Advantages of GRP Lining System

    Seamless and jointless lining

    Excellent chemical and corrosion resistance

    Long-lasting durability (20–30 years)

    Bridges minor substrate cracks

    Lightweight and adaptable for irregular shapes 

    Suitable for new construction and rehabilitation projects 

    Quality Control & Testing

    Ensure substrate preparation meets standards 

    Verify resin-to-hardener ratio and laminate thickness 

    Inspect laminate saturation and absence of air voids 

    Conduct water or chemical tests after curing 

    Optional adhesion pull-off tests for quality assurance 

    Why Choose Professional GRP Lining Installation in Dubai? 

    Ensure correct surface prep, priming, and laminate application 

    Maximize chemical and water resistance for industrial tanks and pools 

    Avoid costly repairs and leaks with certified installation 

    Improve structural integrity and durability 

    Pool waterproofing specialists applying coating and fiberglass layers to a concrete pool

    Conclusion

    The GRP Lining System provides a durable, seamless, and chemically resistant lining solution for a wide range of applications, including water tanks, chemical storage, swimming pools, and industrial containment. 

    With proper substrate preparation, primer, laminate, and curing, GRP linings: 

    This system is ideal for both new construction and rehabilitation projects in industrial, commercial, and residential sectors.

    Contact Us for GRP Lining System Installation in Dubai 

    Protect your water tanks, chemical storage, and industrial containment systems with a seamless, chemical-resistant, and waterproof GRP lining. 

    Call us today or request a free consultation to install a GRP Lining System in Dubai for long-lasting protection, corrosion resistance, and maintenance-free performance. 

    Dubai Office Address

    Office B-71 Building El Shaye-4 Port Saeed, Dubai

    [email protected]

    London Office Address

    85 GREAT PORTLAND STREET LONDON ENGLAND W1W 7LT

    [email protected]

    Frequently Asked Questions(FAQs)

    The GRP (Glass Reinforced Plastic) lining system is a composite lining technology that uses fiberglass reinforcement and high-performance resins to create a durable surface.

    It is widely used across Dubai for potable and non-potable water tanks, industrial chemical storage, sewage and effluent treatment plants, and more.

    The primary benefits include providing excellent chemical resistance, preventing leakage and seepage waterproof.

    GRP lining is suitable for lining concrete, metal (steel), and sometimes other substrates in tanks, pipes, swimming pools, basements, and industrial containment areas.

    It works by combining fiberglass reinforcement (for structural strength) with a reactive resin matrix.

    GRP lining offers wide-spectrum chemical resistance to various substances, including acids, alkalis, solvents, and industrial effluents.

    Yes, GRP lining provides a seamless and jointless membrane, making it highly effective at preventing water ingress.

    Proper surface preparation is crucial to ensure strong mechanical adhesion.

    The typical thickness of a GRP lining ranges from 2 mm to 6 mm, depending on the application requirements.

    Professional installation from Ofixo Tech ensures the correct procedures for surface preparation, resin mixing, and laminate application, ensuring maximum performance.

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