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Synthetic felts are manufactured using man-made fibres that do not bond together naturally. To construct the felt they can be needled together, or fused using chemical impregnations and heat. They are measured in grammes per square metre.
Unlike woollen felts where density, hardness and thickness are all inter-related to tensile strength, synthetic felts owe their hardness and strength to fibre type, impregnations and finish. Therefore if a very strong, thin felt is required, or pore rates are critical to the micron, as in precision filtration, synthetics will offer an advantage over wool. However, synthetics can not match wool’s performance in compressibility, elasticity, absorption and abrasion, but they can be harder wearing, and in applications where either could be considered they can offer a price advantage. Blends can be offered to provide a combination of both types of fibre where application demands.
Singeing – of some fibre types can be carried out to reduce pilling. Minimum quantities and thickness restrictions can apply.
Heat Setting – fibres can have a tendency to shrink in length when substantially heated. To minimise this effect they need to be heat stabilised. This can be achieved by exposing the material to a temperature above that expected in the application. This process helps the material to relax and results in a fabric that will have minimal shrinkage at the required operating temperature.
Coatings, impregnations and laminations available.
- Synthetic felts can be treated for flame resistance
- Some of our synthetic grades can be used in conjunction with Velcro, which we supply plain or self adhesive backed
Synthetic Felt Suitability Chart
Request our FREE sample cards for:
- Wool and synthetic samples patches
- Wool felt density guide