Rigid Open Cell High Density Polyurethane Foam System Formulated Blend Polyol for Subsea Pipeline Insulation

Product Description

PRODUCT DESCRIPTION
LYR2150 High Density Polyurethane Foam (HDPF) polyurethane hard foam plastic is used to fill the joints (field joint) of the underground pipeline, to help protect the joints and make the joints with a diameter similar toto easily move through the tube roller tube when sprayed.
The material most commonly used by G-TECH is LYR2150. It is a custom-designed high density polyurethane foam (HDPF) with a typical moulded density between 90 kgs per cubic metre (Cellafoam - 150/6) and 160 kgs per cubic metre (Cellafoam - 150/10) un-saturated.
Formulated specifically for pipeline field joint applications, the LYR2150 system develops a rigid, open cell structure. Upon immersion, the open cells will absorb water, thereby increasing in overall density to approximately 1025 kgs/m3 (similar to seawater itself).

REQUIREMENTS SPECIFICATION

1. 1. HDPF including two liquid components when mixed together, react within a few seconds turn into solid state and completely filling the joints
   2. The components:

• "A": Polymeric isocyanate. An M.D.I., contains Diphenyl Methane-Diisocyanate
• "B": Polyol Blend
  1. Chemical-Physical:

• Dry density (overall): ≥ 160 kg/m³
• Saturated density (overrall): ≥ 1025 kg/m³
• Compressive strength at 90% deflection: 5.5 MPa
• Open cell content (Free rise core) ASTM D2856 : ≥ 90%
• Viscosity @ 21 ºC: 50-150 cps

• Environmennt: CFCs and HCFCs are not allowed
  1. Response properties:
• Mixing ratio (A:B): 1-1 by volume
• Elongation ASTM D 638: min.5%
• Cream time: /
• Rise time: /

1. PACKING REQUIREMENTS:

Materials are contained in metal drums / 200 liters (Total:543 drums)  and plastic packaging according to the manufacturer's standards. On the packaging with the name of materials, specifications, weight, batch number, name and address of the manufacturer and safety information on chemicals in accordance with international standards.


Feature
• No heat sources are necessary (process at ambient temperatures)
• Commercially attractive
• Rapid cycle times
• Re-usable or expendable / disposable (metallic or plastic) mould systems
• Compact, reliable application equipment
• Compatibility with all conventional, anti-corrosion field joint coating systems
• ODP - zero category formulation (no ozone damaging CFC solvents)
• Water blown
• No solvents required - all equipment is air-purged
• A range of foam densitys are available (6-10 lb / cuft) typically


Foam Performacne

Property	Method	Typical Requirement	Typical Result
Moulded Density	Weighing scales + Calculation	150--170 kg/m^3	165.5 kg/m^3
Saturated Moulded Density	Following Immersion under pressure in Sea water to constant weight	1025 kg/m^3	1025 kg/m^3
Open Cell Content	ASTM D2856	Min 80%	83%
Compressive Strength	ASTM D1621	2.45MPa with Skins	5--7Mpa