Reinforcing materials / carriers
Direct roving
The direct rovings are produced from 2000 or 4000 spinning nozzles. Different qualities from 300 to 4800tex are available with sizings for the respective end applications. Direct rovings are usually processed into rods, tubes, tanks and for the production of roving fabrics using the pultrusion or winding process
CTG-Direktroving
‘Direct rovings’ are multi-purpose rovings that are pulled directly from the melting tank via a 2000 or 4000 nozzle. These products are mainly used for pultrusion and winding processing. The roving is also suitable for weaving.
The CTG-Direktroving is manufactured in one production step and thereby provided with a stabilising sizing. The individual glass filaments are combined into one strand. The tensile forces acting on the filaments of a roving strand are always the same, so that the direct rovings are characterised by low linting tendency, fast impregnation and excellent mechanical properties.
Applications for this product
E-glass roving fabric
E-glass roving fabric 300 – 400 – 500 570 – 800 g/m²
Fabrics based on direct roving from 2000 spinneret in various basis weights for the production of reinforced plastic parts such as glass mat-reinforced thermoplastics (GMT) or also large-area GRP parts for various end applications such as in boat and automotive construction or tanks.
The CTG roving fabrics are characterised by
- low linting, contamination or other impairments
- fast resin absorption/ during processing
- uniform fabric thicknesses
- good covering and degassing properties during processing
- good mechanical properties and high retention in the wet state during processing
Applications for this product
Continuous mat
Continuous mat with binder or sewn 300,450,600 g/m²
Glass fibre mat made of randomly laid endless glass filaments. The filaments are optionally fixed with binder or sewn/stitched with thread. Continuous mats are used to produce GMT and large GRP parts, among other things, using the closed processing method (RTM) as well as the hand lay-up method.
Applications for this product
Short-fibre glass mats
For short-fibre glass mats, we distinguish between powder-bound (300, 450, 600, 900 g/m²) and emulsion-bound (225, 300, 450, 600, 800 g/m²).
Also: Glass mats made of cut E-glass, fibre length 50mm – powder or emulsion bonded – with uniform weights per unit area – available in various roll widths from 150 to 2500mm, standard width 1270mm.
Applications for this product
Short-fibre mats
Sewn short fibre mats 300 or 450 g/m² – Mat complex fabric/short fibres 500, 800/300 or 450 g/m³ – Combination mat/roving 300, 450/500, 800, 1700(90) g/m²
Glass fibre mat made of randomly laid endless glass filaments. The filaments are optionally fixed with binder or sewn/stitched with thread. Continuous mats are used to produce GMT and large GRP parts, among other things, using the closed processing method (RTM) as well as the hand lay-up method.
The CTG Knit Mat combination mats are characterised by
- consistent thicknesses, high wet tensile strength retention, no felting of the fibres and low torsion
- directional properties and strengths similar to those of roving fabrics
- flexibility in the design/creation of different fibre structures
- very little material required to achieve the highest possible tensile strength values
Applications for this product
Short glass fibres
These are cut E-glass fibres with defined filament diameter and fibre lengths. The products are available with different sizings.
The short glass fibres are used for the production of reinforced thermoplastics such as PA, PBT, PET, PC, SAN, PS, PP and thermosets such as UP (BMC) and phenolic resins.
CTG short glass fibres
These ‘short glass fibres’ made from E-glass have a special sizing for use as a reinforcing material in plastics.
The CTG short glass fibres are characterised by
- Uniformity and low fines content
- Easy flowing to avoid pulsation during fibre dosing
- Excellent fibre dispersion and flowability during processing
- Fast wetting, fibre disintegration in the plastic matrix
WTH cut glass fibres
These ‘short glass fibres’ made from E-glass have a special sizing for use as a reinforcing material in plastics.
The WTH short glass fibres are characterised by
- Uniformity and low fines content
- Easy flowing to avoid pulsation during fibre dosing
- Excellent fibre dispersion and flowability during processing
- Fast wetting, fibre disintegration in the plastic matrix
Applications for this product
Multi-End Roving
Multi-End Roving are glass rovings made from spun threads, these special rovings are mainly used in the pultrusion process and winding process. Sometimes it is also called conventional roving.
Due to the different sizings, the multi-end rovings can be optimally processed in the corresponding applications. Typically, TEX values range from 1200 to 9600 Tex depending on the end application.
Applications for this product
Spray roving
Spray roving HOBAS – Roving SMC – Roving Cutting roving – Roving for panels – LFT roving
Conventional roving in various qualities from 1200 to 4800tex, available with different application-optimised sizings for excellent processing behaviour. Conventional Roving is processed, among other things, in the fibre spraying process and SMC production.
The CTG spray rovings are characterised by
- uniform tex value and uniform dissolution behaviour
- medium stiffness, good cutting behaviour and fibre distribution
- little linting
- good antistatic properties
- fast impregnation of the fibres and easy deaeration
Applications for this product
Reinforcing fibres – Basalt fibres
WTH basalt fibres are made from continuous filaments. These are available as cut fibres, roving or fabric. They can be used in a wide temperature range (from -260 to 680°C). They are also characterised by high chemical resistance to acids, alkalis and chemical solvents, among other things.
Applications for this product
Reinforcing fibres – Stainless steel fibres
WTH stainless steel fibres have a high fineness of 8-11 µm and are proven as an efficient filler for the production of electrically conductive plastics.
They are available as continuous fibres (rovings), short fibres or as granules (thermoplastic filled with stainless steel fibres). Various polymeric substrates are available.
With a very low dosage, they meet the specifications for electromagnetic shielding (EMI/EMC) and electrostatic discharge (ESD).
Applications for this product
Your contact
Dr. Silke-Nicola Trzaska
Mail: info@wthgmbh.de
Dieter Holst
Mail: info@wthgmbh.de
Tomasz Wojtas
Mail: info@wthgmbh.de
