Insulation and Protection
Marine applications...
Buoys, fenders, rope coatings, cable protectors
SPU
HYPERLAST SYNTACTIC™ 512
Water depths to 250 metres (800ft)
Temperature performance to 125°C (257°F)
Mouldable or rotationally castable
HYPERLAST SYNTACTIC™ polyurethanes have been used for over twenty
five years for the protection and insulation of oil and gas flowlines,
manifolds, risers, field joints, xmas trees, jumpers, spool pieces and related
sub-sea architecture.
These materials have excellent thermal insulation, corrosion protection,
adhesion, impact strength and are durable in harsh working
environments.
Hyperlast pipeline products have been tested in the field and are widely
used as pipeline coatings from the North Sea, Gulf of Mexico, South East
Asia, South America to the west coast of Africa.
Hyperlast pipeline materials offer many
application advantages
• flexibility
• range of hardness
• low processing temperatures
• mould or rotationally cast
• non-mercury catalysed versions available
GSPU
HYPERLAST SYNTACTIC DW 512™
Water depth capabilities –
DW-512 / 150 - 1500 metres (5,000ft)
DW-512 / 300 - 3000 metres (10,000ft)
Temperature performance to 115°C (239°F)
Mouldable and rotationally castable versions available
Over eight-year record of deepwater installations
Simulated service tests have been carried out on these materials at the
Heriot-Watt University in Edinburgh to analyse the properties of DW-512
when subjected to deep-water conditions with internal pipe temperatures
up to 115°C (239°F).
The results indicate:
• minimal change in thermal conductivity to ensure consistent insulation properties
• minimal change in coating thickness due to compression by hydrostatic pressure
• very low water absorption
• K value in the range of 0.13 – 0.165 w/m°K (0.075 - 0.095 Btu/ft.hr.°F)
Hyperlast pipeline materials offer many application advantages..
• excellent adhesion to FBE
• excellent interfacial bond strengths with Dow Hyperlast field jointing systems
• capable of J-lay, S-lay and reel barge application.
FIELD JOINTING
HYPERLAST™ FJ
Polyurethane Elastomer
In addition to flowline protection, Dow Hyperlast polyurethanes have been used
to produce in excess of 220,000 field joints both onshore and offshore. The fast
curing times of Hyperlast jointing polyurethanes help to enable fast cycle times
of as little as 5 minutes to be comfortably achieved.
Faster cycle times to suit faster lay conditions can be offered. Dow Hyperlast’s products are compatible with polyurethanes and polypropylene parent coatings. Excellent bonds are achieved with suitable pretreatment of the parent coating. Please contact Dow Hyperlast for more details.
PU Rigid Foam
Dow Hyperlast also offer a proven range of rigid polyurethane foam systems for
the in-field jointing of large diameter pipelines in conjunction with pipe-in-pipe
and/or concrete weight-coated gas transmission lines.
RIGID FOAM
HYPERLAST™ PUF
Dow Hyperlast polyurethane rigid foams comprise a
range of systems formulated to suit a variety of pipeline
situations.
These systems are available in a range of compressive strengths with various degrees of open/closed cell content to address the needs of typical applications such as onshore line-pipe insulation and field jointing, pipe-in-pipe insulation of sub-sea flowlines and field joint infill of concrete weight coated sub-sea pipelines.
Systems are available at different densities, with particular
insulation characteristics according to the level and type
of blowing agent included within the formulation. These
systems are typically designed to be processed through
high pressure meter mixing equipment for cast and spray
applications.
CUSTOM COATING
To compliment the parent coat and field jointing system, Dow Hyperlast offers insulation systems for manifolds, risers, jumpers, spool pieces, xmas trees and related subsea architecture.
Dow Hyperlast two component liquid processable polyurethane systems readily lend themselves to the protection and thermal insulation of complex sub-sea architectures. Their inherent flexibility and processing characteristics makes them particularly useful for coating in situations where thermoplastic materials are difficult to apply and where adhesion to the metal surface is of paramount importance.
