Neva Marine

Corecell

www.gurit.com

SP Systems

Corecell™ - Structural Core Materials from SP-High Modulus

  • Corecell™
  • M-Foam
  • A-Foam
  • P-Foam
  • S-Foam
 
 

Cores in sandwich construction are specified by designers and architects to increase stiffness and reduce the weight of a composite structure. Corecell™ is the leading structural foam core material, which has become widely accepted for the construction of large, high performance structures. It is the latest in foam core technology and although originally developed for the marine industry, it is now used in other applications such as wind turbines and sub sea vessels.

 

Corecell™ uses SAN polymer base, resulting in unique high toughness and impact resistance characteristics. The foam acts as a 'shock absorber' between the two skins - absorbing the impact without failing, distributing the stresses evenly within the core and, in the case of a boat, ensures it remains watertight even after high point impacts.

 

Corecell™ foams provide low weight, excellent stiffness, and structural integrity under dynamic loads. They have high shear elongation and retain their mechanical properties even in the higher ambient temperature range. The insulation values are constant over time due to controlled, CFC-free foaming process.

 

Corecell™ foams are compatible with polyester, vinylester, and epoxy resins. However, we recommend appropriate tests are carried out to check the bond/compatibility with any resin system used. Epoxy resins bond well to the Corecell™ foam, but through a mechanical bond; as there is no chemical interaction the integrity of both the epoxy and the core is maintained.

Corecell™ is type approved by the American Bureau of Shipping (ABS), Lloyds Register of Shipping, Det Norske Veritas (DNV) and Germanischer Lloyd (GL).

 

 

 
 
 

Corecell M-Foam

Corecell A-Foam

Corecell P-Foam

Corecell S-Foam

 

 Corecell M-Foam

Introduction

 

Corecell™ M-Foam is the newest addition to the Corecell™ range and shares the benefits of SAN chemistry common to all Corecell products.

  • Environmental stability – High tolerance for heat and chemical exposure

  • Built in toughness – High ductility and damage tolerance compared to cross-linked PVC and Balsa

 

  • Fine cell size – Resin absorption is very low, saving both weight and cost

  • Superior uniformity – Low density variation

  • Eliminating outgassing – Corecell™ eliminates the problems of foam outgassing

  • Compatibility – Suitable for use with all polyester, vinylester and epoxy resins

  • No inhibition - Corecell™ does not inhibit any epoxy resin curing mechanisms

  • Handling – Tough and easy to machine

                                           

Corecell M-Foam has been developed to deliver one product for all Marine applications. It provides a combination of high shear strength with low density, high elongation, high temperature resistance and low resin uptake. M-Foam is the perfect choice whether your application is slamming area or superstructure, hull or deck, using hand lamination, infusion or prepreg.

If looking for reliable processing, Corecell™ M-Foam delivers through the benefits recognised in all Corecell™ products of fine cell size and unique knife-cuts giving low resin uptake in infusion processes. For prepreg, Corecell™ M-Foam offers high temperature resistance to allow shorter cure cycles and the confidence to process without fear of inhibition of prepreg catalysis. Where static properties are important,

 

Corecell™ M-Foam delivers high shear strength at a low density. Where dynamic performance is crucial, the high elongation delivers higher useful properties and the toughness to give impact resistance and superior fatigue performance.

 

Corecell™ M-Foam is available in resin infusion format and is compatible with polyester, vinylester and epoxy resin systems. The low resin absorption characteristics of Corecell™ and its unique knife cut formats allow for higher performing infusions, low resin cost and low weight. Gurit’s global technical team have 10 years experience in resin infusion, hand lamination and prepreg processing and offer on-site support and structural engineering for Corecell™ customers. This combination makes Corecell™ a key part of a reliable package.

 

 

Corecell™ A-Foam - Structural Foam Core

 
   

                          

Corecell™ A-Foam - The Original Corecell

 

Corecell™ A-Foam is the original Corecell™ material, developed because of frustrations with inadequate PVC core technology in marine sandwich structures. Corecell™ A-Foam is well known for it’s incredible toughness and resistance to cracking, which comes from its high ductility. Corecell™ A-Foam can elongate up to 65% in shear before failure, making core shear failure in a laminate almost impossible. Tests and experience show that Corecell™ A-Foam is the most reliable core material for dynamic loading situations where PVC and balsa may fail due to poor shear elongation properties. This reliability has made Corecell™ A-Foam the preferred choice amongst offshore yachtsmen for twenty years.

 

For the manufacturer, Corecell™ A-Foam offers the benefit of high resistance to styrene and other chemicals and better thermal stability than linear-PVC foam. Corecell™ A-Foam is also highly thermoformable, which is useful in many applications where cutting the core material is undesirable.

 

Corecell™ A-Foam is available in every resin infusion format and is compatible with polyester, vinylester and epoxy resin systems. The low resin absorption characteristics ofCorecell™ and it’s unique knife cut formats deliver higher performing infusions, low resin cost and low weight. Gurit’s global technical team have 10 years experience in resin infusion and offer on-site support for Corecell™ customers. This combination makes Corecell™ the most reliable resin infusion package available.

 

 

 

 

 

   

  Corecell A-Foam

 

Corecell™ P-Foam - Heat stabilised for prepreg processes

 
   

                          

 

Corecell™ P-Foam - A Development of A-Foam for use with Prepreg and SPRINT

 

Corecell™ P-Foam is a development of Corecell™ A-Foam, intended for prepreg and SPRINT® manufacturing processes.Corecell™ P-Foam has incredible toughness and resistance to cracking, which comes from its high ductility. Corecell™ P-Foam can elongate up to 65% in shear before failure, making core shear failure in a laminate almost impossible.

 

For the manufacturer of prepreg or SPRINT® structures, especially yacht hulls, Corecell™ P-Foam removes the problems of outgassing inhibition or thermal stability.Corecell™ P-Foam is also highly thermoformable, which is invaluable in the construction of high performance prepreg or SPRINT® structures.

 

 

 

 

 

   

 Corecell P-Foam

 

Corecell™ S-Foam - Specialist Core for sub-sea applications

 
   

                          

Corecell™ S-Foam - For Sub-sea Buoyancy Applications

 

Corecell™S-Foam has been designed specifically for use in sub-sea buoyancy applications. Its resistance to crushing means that it can withstand depths of over 900m, and its closed-cell structure gives it a high water resistance that ensures buoyancy is maintained over time. With its very high compressive strength,Corecell™ S-Foam can also replace other materials, such as plywood, when creating high strength inserts for through-bolting in composite laminates.

 

Having the smallest cell size of all the Corecell™ products, Corecell™ S-Foam absorbs very little resin in lamination processes, thus minimising weight gain. The small cell size and the product’s inherent toughness also contribute to the excellent machineability of Corecell™ S-Foam. Complex shapes can be created inCorecell™ S-Foam using a variety of milling, routing, sawing and drilling techniques.

 

Corecell™ S-Foam is available at lower densities that can be achieved with a syntactic, with standard products ranging from 150 to just over 300kg/m3.

 

 

 

 

 

   

  Corecell S-Foam

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Merkez Ofis:

Tuzla Tersaneler Bölgesi, Aydıntepe Mahallesi, Sahil Bulvarı Özek İş Merkezi, D-Blok, No:4 Tuzla, Istanbul 34944  Tel: +90 216 447 0600  Fax: +90 216 447 0602  GSM: +90 533 733 9416

Usa Office :

1546 Second Avenue, Suite 3A New York, NY 10028 Tel: +1 917 338 7560   Fax: +1 917 338 6519  GSM: +1 917 415 1175

info@nevamarine.com
Design By Mutlu GÜNDOĞAN