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GRP Composite Flat Sheet & Anti Slip Products

General Description

Fybacore GRP Sandwich (Cladding) panels are manufactured by press bonding Fybatex GRP onto a range of core materials to produce an attractive, yet functional, cladding / infill solution for a wide variety of new build and refurbishment applications.

Weight of Panel

Thickness [mm] Weight [kg/m2]
24 (ply) 18.11
24 (foam) 9.00
48 (foam) 11.00
57 (foam) 13.00

Fire Resistance

Products can be manufactured to different degree of fire resistance:

  1. General Purpose (GP grade – all products)
  2. BS 476 Part 7 Class 1 (surface spread of flame, all products)
  3. BS 476 Part 7 Class 2 (surface spread of flame, all products)
  4. Phenolic

For an explaination of the differences between these ratings “click here

Surface Finishes

Standard surface finishes include:

  1. Smooth / Crinkle
  2. Smooth / Smooth
  3. Smooth / Leatherette
  4. Crinkle / Crinkle
  5. Smooth / Resotex
  6. Leatherette / Leatherette

Thermal Co-Efficient of Expansion

30 x 10­^(-6) /Deg C
Note: Compared with many other plastics GRP has minimal expansion and contraction characteristics and will not bow and warp in extremes of temperature.

Colour Range

Black, grey and yellow colour as a standard. Although panels can be manufactured to the following:

  1. B.S. 4800 Colour Range
  2. B.S. 5252 Colour Range
  3. RAL Colour Range

A colour match service is also available.

Flexural Strength

193 MPa
Note: Flexural strength can be enhanced by the addition of woven reinforcement if required.

Thermal Conductivity

Fybatex: 0.2 w/mK
Fybacore: The thermal conductivity is entirely dependent on the chosen substrate, but better than 0.35 “U” value is achievable.

Tensile Strength


Tensile Modulus

7.1 GPa
Note: GRP sheet is up to seven times stronger than mild steel on a weight for weight basis.

Size & Thickness

Panels can be manufactured to a length of 3,300mm and a width of 1,525mm. Standard product range can be manufactured with either a plywood or Styrofoam filling – or even a mixture of both, and sometimes also includes a sheet of diamond mesh reinforcement. Thicknesses vary from 9mm to 100mm.


Panels are usually supplied on pallets and can be delivered anywhere in the UK within approximately 7-10 working days under normal circumstances. Each panel can be marked with a location code and panel size on the protective covering of the goods if required.


Due to the wide variety of products and variations available in the Fybacore range, these technical specifications should be considered as a guide only. Please contact us directly for more accurate product qualities and performance ratings.

Smyth Composites Limited operate as a “Toll Manufacturer” and therefore advise that Customers MUST satisfy themselves that the products they order are fit for the intended purpose.

Full Technical Specifications