Harvest Technology
Marine Solutions

Thermal Insulation for
Gas Carriers

Comprehensive cargo tank and pipe insulation systems for LNG, LPG, LEG, and Ammonia carriers — from spray-applied systems to certified panel solutions.

Cargo Tank Insulation

Harvest offers three distinct cargo tank insulation systems, each engineered for specific vessel types and operational requirements. All systems meet international maritime standards and classification society requirements.

Cargo Tank Insulation

Type A — Spray System

Main Application
LPG, Ammonia Carrier
Spray polyurethane foam applied to cargo tank interior — Type A system overview

Type A — Spray PU Foam Application

System Layers
1
Spray Polyurethane Foam
2
Polyurea Coating
Key Features
  • Excellent mechanical properties and premium thermal insulation performance
  • Flexible enough to follow cargo tank contraction and expansion
  • Convenient and highly efficient spray process — can shorten construction period
  • In-situ spray suitable for various complicated surfaces
  • Good compatible with cargo tank and durability
Cargo Tank Insulation

Type B — Panel Insulation System

Main Application
LNG/LEG Carrier, LNG Fuel Tank
Type B panel insulation system installed in LNG/LEG cargo tank — panel layout overview

Type B — Panel System Overview

System Layers
1
Low thermal conductivity PU foam + Polystyrene foam panels
Key Features
  • Independent intellectual property rights — 9 related patents applied and obtained
  • New generation low thermal conductivity PU and polystyrene foam at cryogenic temperature
  • Rigorously verified through over 100 specialized tests
  • Strong thermal insulation reliability ensured
  • AIP certification from ABS and Lloyd's Register classification societies
  • Type approval from ABS and Bureau Veritas (BV)
Cargo Tank Insulation

Type C — Spray System with Reinforcement

Main Application
LNG/LEG/LPG/Ammonia Carrier, LNG Fuel Tank
Type C spray system applied to cargo tank — PU foam base layer in progress

Type C — Spray PU Foam Base Layer

System Layers
1
Spray Polyurethane Foam
2
Polyurea Coating
3
Reinforcement Layer
Key Features
  • Excellent mechanical properties and premium thermal insulation performance
  • Flexible enough to follow cargo tank contraction and expansion
  • Convenient and highly efficient spray process
  • In-situ spray suitable for various complicated surfaces
  • Good compatible with cargo tank and durability
  • Reinforcement layer makes the whole insulation system robust

Pipe Insulation

Specialized pipe insulation systems for LNG, LEG, LPG, and Ammonia carriers, designed to maintain cryogenic temperatures and prevent heat gain throughout the vessel's piping network.

Pipe Insulation for LNG / LEG / LPG / Ammonia Carriers
Cryogenic pipe insulation system overview — LNG/LEG Carrier main cargo line

Overview — LNG/LEG/LPG/Ammonia Pipe Insulation

Cryogenic Performance
Maintains insulation integrity at extreme low temperatures throughout the piping network
Vapor Barrier Systems
Secondary vapor barriers prevent moisture ingress and ice formation at joints and elbows
Complex Geometry
3D CNC cutting for elbows, tees, and custom fittings — leak-proof elbow installation
GRP Cladding
Glass reinforced polymer outer jacket for mechanical protection in marine environments
Thermal Efficiency
Minimizes boil-off gas losses and reduces refrigeration energy consumption
Marine Certified
Fully compliant with classification society requirements for marine applications
Classification Society Approvals
ABS — AIP + Type Approval
Lloyd's Register — AIP
Bureau Veritas — Type Approval