Sandwich Core Materials are lightweight, structural layers that are embedded between laminate layers in order to build bulk and strength for a part—without adding significant weight. By employing sandwich core materials in your part or mold, you can achieve much higher flexural strength and flexural modulus than using skin laminates alone.

Want to learn more about Sandwich Core? Visit the Learning Center and read our white paper, Guidelines for Sandwich Core Materials.

Click on a product image below to get more information and view pricing.

Nomex® Honeycomb

Nomex® Honeycomb

Lightest Possible Construction
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Divinycell DIVINYMAT

Divinycell DIVINYMAT

Resin Flows Easily for Vacuum Bagging

End Grain Balsa

End Grain Balsa

Conforms to Most Curves – Marine Grade
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Vinyl Foam: Divinycell 3 lb. Density

Vinyl Foam: Divinycell 3 lb. Density

Superior Mechanical and Insulative Properties
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Vinyl Foam: Divinycell 4 lb. Density

Vinyl Foam: Divinycell 4 lb. Density

Strikes Balance Between Strength and Weight

Vinyl Foam: Divinycell 5 lb. Density

Vinyl Foam: Divinycell 5 lb. Density

Highest-Strength Sandwich Core, Form with Heat
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2 Lb. Polyisocyanurate Foam Sheets

2 Lb. Polyisocyanurate Foam Sheets

Easy Cut and Shape for Pattern-Making
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6 Lb. Polyisocyanurate Foam Sheets

6 Lb. Polyisocyanurate Foam Sheets

Easy Carve for More Detailed Patterns and Molds

2 Lb. Polyurethane Mix and Pour Foam

2 Lb. Polyurethane Mix and Pour Foam

Fill Cavities for Flotation and Reinforcement
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6 Lb. Polyurethane Mix and Pour Foam

6 Lb. Polyurethane Mix and Pour Foam

Higher Density for Strength and Improved Detail
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Sandwich Core Sample Pack

Sandwich Core Sample Pack

Get Each of our Sandwich Core Materials to Compare

Sandwich Core materials from FibreGlast.com include:

  • Nomex® Honeycomb—Offers the very best strength-for-weight ratio in this category; flexible, fire retardant, and delivers good impact resistance.
  • End Grain Balsa—Conforms to practically any simple curve and most gradual curves.
  • Foam—Includes sheets of vinyl and polyisocyanurate, as well as mix-and-pour foam; all are closed cell and resist water, gas, and oil.

All the Sandwich Core materials in this category are compatible with epoxy, vinyl ester, and polyester resins, and can be used for most lay-up techniques, including vacuum bagging and infusion.

To see how Sandwich Core is used during the vacuum bagging process, visit the Learning Center and read Vacuum Bagging Equipment & Techniques. You can also view An Introduction to Sandwich Core Materials on the Fibre Glast Blog.

You can place your order right here on our website or, if you have any questions, call 1.800.838.8984 | 8:00am - 7:00pm EST Mon-Fri.