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Thermoplastic Lined FRP Tanks

Thermoplastic-lined FRP (dual-laminate) tanks feature an inner thermoplastic liner (like PP, HDPE, PVC, CPVC, PVDF, PTFE) fused to an FRP outer shell. This combines the chemical immunity of plastics with the strength and rigidity of fiberglass. Such tanks are ideal where extreme corrosion resistance is required (e.g., concentrated acids or solvents).

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Key Features

  • Thick Thermoplastic Liner: Inner liner typically ~50 mm (2″) thick to resist chemical attack
  • Butt-Welded Seams: High-strength welded joints in liner to prevent leaks
  • Multiple Liner Materials: Homopolymer PP, copolymer PP-H, PE, PVC, CPVC, PVDF, PTFE available
  • Standard Tank Configurations: Vertical or horizontal, flat/dished ends, insulated options

Benefits

  • Maximal Corrosion Protection: Thermoplastic liner acts as the primary barrier, allowing storage of highly aggressive chemicals (strong acids, bases, solvents)
  • High-Temp & Wear Resistance: Liners and FRP withstand elevated temperatures and abrasion
  • Zero Leakage: Fully sealed interior ensures no permeation

Applications

  • Chemical Manufacturing: Storage of hydrofluoric, nitric, sulfuric acids, and other aggressive reagents
  • Petrochemical & Refining: Containment of corrosive petrochemicals and petrochemical intermediates
  • Waste Treatment: Aggressive effluent processing (solvent recovery, acid regeneration)

Technical Specifications

  • Liner Materials: PP (homopolymer, copolymer), HDPE, PVC, CPVC, PVDF, PTFE
  • Liner Thickness: Approximately 50 mm (2″) standard, can vary based on specification
  • Outer Shell: FRP with vinyl ester resin-rich laminate
  • Design Temperature: Up to 80–100 °C, depending on liner material

Unique Selling Points (USPs)

  • Dual-Laminate Expertise: Precision fabrication ensures perfect bonding of liner and FRP for maximum integrity
  • ASME Certified: Tanks can be manufactured as per ASME RTP-1 standards for thermoplastic-lined equipment