Core materials play an important role in the composite industry. They are intricate structures that are bonded to two thin, stiff sheets on either side, forming what is known as a “sandwich structure”. Sandwich structures are used in a multitude of contexts, such as in building construction, aircraft and vehicular construction, as well as refrigeration engineering.

Our core materials support high-quality sandwich structures, as they are composed of non-woven components that boast remarkable workability as well as being cost and weight-efficient. Laminates that utilize our core materials carry the advantage of being light-weight and able to withstand high impact and fatigue.

Contact our specialists to inquire about how we can make our quality core materials suitable for your business requirements.


  • U-Pica Mat® is a low density, non woven continuous strand laminate bulker print control mat containing approximately 45% by volume of microballoons and having a density of 0.045G/cm2.
  • U-Pica Mat® has excellent wet-out property for unsaturated polyester resins and absorbs about 55% by volume of the resin
  • No change of thickness is observed even after the resin has been cured.


U-Pica Mat® is available in 5 standard grades.
Thickness (dry) mm 1.6 2.1 3.1 4.1 5.1
Thickness (wet) mm 1.5 2 3 4 5
Weight g/m2 60 90 135 160 200
Apparent density g/cm3 0.04 0.045 0.045 0.04 0.04
Resin absorption % 55 60 55 55 55
Standard width cm 100 100 100 100 100
Roll length m 50 50 50 50 50
Roll weigth kg about 4 about 5 about 7 about 8 about 10
Roll diameter cm 33 40 48 55 60
Roll volume m3 0.11 0.16 0.23 0.3 0.36

* Maximum available width is 127 cm.


Each individual roll is wound on a paper core and wrapped with blue polyethylene film.


U-Pica Mat® should be stored dry in its original packaging, in a well ventilated area away from direct light. Rolls must be stored vertically, as horizontal storage or piling might affect thickness.

Download Upica Mat PDF