Connecting you to the composites industry


Other Core Materials

  • Thursday, 24th January 2019
  • Reading time: less than a minute

Although not usually regarded as true sandwich cores, there are a number of thin, low-density ‘fabric-like’ materials which can be used to slightly lower the density of a single-skin laminate. Materials such as Coremat and Spheretex consist of a non-woven ‘felt-like’ fabric full of density-reducing hollow spheres. They are usually only 1-3 mm in thickness and are used like another layer of reinforcement in the middle of a laminate, being designed to ‘wet out’ with the laminating resin during construction. However, the hollow spheres displace resin and so the resultant middle layer, although much heavier than a foam or honeycomb core, is lower in density than the equivalent thickness of glass fibre laminate. Being so thin they can also conform easily to 2-D curvature, and so are quick and easy to use.

Published courtesy of David Cripps, Gurit

Share this article

Continue to Core Properties Back to Wood Cores

Comments (0)

Sign in or create an account to join in the discussion.

Leave your comment


Upcoming Events




Follow us
Subscribe to our email newsletter

Subscribe to receive our weekly round-up of all the industry's latest news, jobs, events and more!

We'll always keep your personal details secure and will never share them with third parties for marketing purposes. You can unsubscribe at any time. For further details on how we may use your data, please visit our Privacy Policy.