Foam core sandwich panel

fiberglass facingfor floorfloors

Product information
GRP sandwich grating consists of a molded GRP grating as the load-bearing core and two GRP panels laminated on the top and bottom faces. Standard panel thickness is 3 mm; 5 mm panels are available as an option. The grating surface is ground smooth before panel lamination to ensure optimal bonding and load transfer. All moulded GRP gratings can serve as a base for sandwich configurations. Multiple surface finishes are available, including anti-slip options tailored to the application.

Resin types

• Fiberglass flooring with several resin systems — Resin systems can be adapted for enhanced corrosion resistance, elevated temperature performance and improved fire characteristics.
• Orthophthalic Polyester resin (OPR) — for mildly corrosive environments
  • resin type: orthophthalic polyester
  • hardly flammable, halogen-free (non-toxic)
  • self-extinguishing properties
  • HDT (A): 80 °C
  • dimensional stability (Martens): 160 °C
• Isophthalic Polyester resin (IPR) — standard, general-purpose
  • resin type: isophthalic polyester
  • hardly flammable, halogen-free (non-toxic)
  • self-extinguishing properties
  • HDT (A): 120 °C
  • dimensional stability (Martens): 160 °C
• Vinyl Ester resin (VER) — for high chemical and temperature resistance
  • resin type: vinyl ester
  • hardly flammable, halogen-free (non-toxic)
  • self-extinguishing properties
  • HDT (A): 120 °C
  • dimensional stability (Martens): 180 °C
  
  Vinyl ester is recommended for gratings requiring long service life under aggressive chemical exposure and higher temperature loads.
• Phenolic resin (PHR) — for maximum fire safety
  • resin type: phenolic
  • hardly flammable
  • self-extinguishing properties
  • HDT (A): 160 °C
  • dimensional stability (Martens): 180 °C
  
  Phenolic systems offer high fire resistance with low smoke and reduced toxic combustion gases.

Characteristics / technical specifications

• Product type: GRP sandwich grating (moulded GRP grating core with two laminated GRP panels)
• Standard panel thickness: 3 mm
• Optional panel thickness: 5 mm
• Grating surface is ground smooth before laminating to ensure optimal bond
• Base compatibility: all moulded GRP gratings can be used as base elements
• Available surface finishes: multiple options including anti-slip treatments depending on chosen surface
• Resin systems and typical values:
  • OPR (Orthophthalic Polyester): HDT (A) 80 °C, Martens 160 °C
  • IPR (Isophthalic Polyester): HDT (A) 120 °C, Martens 160 °C
  • VER (Vinyl Ester): HDT (A) 120 °C, Martens 180 °C — recommended for high chemical and temperature resistance
  • PHR (Phenolic): HDT (A) 160 °C, Martens 180 °C — recommended for maximum fire safety, low smoke and low combustion gas toxicity
• Resin modifications possible to meet special requirements (corrosion resistance, temperature, fire performance)