Composites

FRP Threaded Rods, FRP Bolts, and FRP Nuts: Durostone® composite fasteners are used in technical fields that have high demands on electrical, chemical and thermal properties. Durostone® FRP fasteners are based on glass fiber reinforced epoxy or polyester resin Systems with special additives and a special structure.

Compared to steel composite fasteners made of Durostone® are:

• Much lighter
• Electrical and thermal insulating
• Corrosion-resistant
• Resistant to aggressive media

Properties:

• Electrical properties: All Durostone® composite fasteners are electrically insulating and non-magnetic. Some qualities are moreover, partial discharge free up to a high electric field of strengths and especially non-tracking. They are excellent for use in transformers, in electrical engineering, in high-frequency, switching, and electrostatic powder coating equipment.
• Chemical properties: Durostone® composite fasteners are particularly resistant against aggressive fluids and gases, resistant to transformer oil and dielectric liquids and highly UV and weather resistant. They are in use, for example, in chemical equipment, flue gas desulfurization, and cable trays, onshore and offshore technology, seawater desalination, wastewater treatment, and cable trays.
• Thermal Properties: Compared to steel (15 - 58 W/mk) FRP threaded rods, bolts and nuts made of Durostone® have a very low thermal conductivity of 0.3 W/mk, and are therefore at the level of mineral wool, which is used in construction as insulation. They are ideal for use in refrigeration, HVAC and areas suitable for applications, where thermal bridges must be avoided.
• Lightweight: Durostone® composite fasteners have a density of 1.9 t 2 g/cm³ and thus weigh only about 1/4 of steel. They are well suited for applications where weight reduction is an important factor - for example, in-vehicle or the construction of nacelles for wind turbines.
• High tensile strength: Compared to threaded rods made of thermoplastic such as for example polyamide. Durostone® FRP threaded rods have a six-fold higher tensile strength.

Durostone FRP threaded rods, bolts, and nuts are used in:

• Flue gas desulphurization plant
• Onshore/offshore engineering
• Chemical plants
• Hydraulic engineering, sewage treatment plants, desalination of seawater
• Transformers, dry-type and oil-immersed
• Generators
• Switchgears
• Instrument construction, High-frequency Systems
• Traffic engineering
• Refrigeration and air conditioning
• Cable trays
• Electrostatic powder coating
• Electroplating plants

Durostone® is a range of Fibre Reinforced Plastics manufactured from polyester, Vinylester, Epoxid and modified Epoxy resins, combined with glass fibre.

Properties: The Heavy-duty glass fibre reinforced plastic durostone® offers extreme strength and excellent electrical, thermal and chemical properties.

Applications :

• Generator Construction
• Switchgear
• Chemical Process equipment
• Transportation Systems
• Wind Energy
• Electrical Industries
• Electromagnets Interlayer Insulation
• Terminal Board, block & clamps
• FRP Block, Epoxy wedges,
• Class F GRP FRP, Class H GRP FRP
• Water Resistant Sheets, FRP Rings, FRP Spacers
• Fibre Glass Fabricated Components
• FRP lamella Plate, FRP Channels, FRP Corner angles,
• Epoxy cast resins insulation and bushings
• GP03, GP03 sheets, FRP Laminated Profiles,
• FRP Pultruded Profiles, Epoxy Sheets, Vinylester sheets, SMC Sheets,
• Polyester Fibreglass sheets.
• EPGC01, EPWR01, EPGM01, G10, G11, FRU, UPM, UPGM01,
• UPGM03, UPGC203, UPGM203,
• FRP Slot wedges, GRP Slot Wedged,
• FRP insulation brackets, Pole flanges, FRP threaded rods
• FRP pultruded rods, FRP nuts, Filament wound rings,
• Filament winding, Solder Pallets, Wave solder pallets,
• NEMA G10, NEMA G11, FRP Machined Parts, FRP Flexible Sheets
• FRP Low smoke fire retardant, FRP Fire Resistant cable clamps
• FRP Thermal Insulation Sheets, Composite Profiles,
• Glasstherm 220
• Glasstherm 250
• Glasstherm 500
• Fire Retardant FRP Profiles, FRP Dogbones, FRP Hollow Sections
• FRP Rods, FRP C- Profiles, FRP T-Profiles, FRP I-beams, FRP Roof Corner Profiles, FRP Z- Profiles, FRP Channels,
• UL 746, UL 94, UL 94 V-0, UL V-0

Cut-off service

Our great delivery capacity of frp sheets is ensured by our extensive and well assorted stock in semi-finished products as well as by SMC technology (Sheet Molding Compound) being used. We are thus in a position to deliver fixed dimensions without any delay. Our cutting department with CNC-controlled pre-cutting saws creates flexibility for any size required.

Special grades

Together with our customers we develop specialized frp sheets to fulfil certain requirements in the field of fire protection or resistance against chemicals or with optimized mechanical, electrical or thermal properties. Standard Sizes for UP grade & EP Grades are available.