What is Nonwoven Polyester?

Nonwoven polyester is a material that basically consists of layers of polyester fibers. It is produced by combining and compressing fiber layers with binder or melted polymer resin. It is frequently preferred in different application areas with its low density and high strength properties. It also has high elasticity and low water absorption properties. This property makes this polyester waterproof and durable. Today, many laminate stackers are known to be made of polyester fibers and microspheres. With its versatile fiber directive, this product is different from most products on the market.

Glass fiber core felt is used as an economical and effective core material. Glass fiber core felt has higher bending resistance than polyester-based core material. Glass fiber core felt is produced by volumizing glass fiber fibers with thermoplastic microspheres. Glass fiber core felt is therefore a special core material. Glass fiber core felt used in composite part production reduces resin consumption. For example, 3 mm thick SphereCel GF can replace 3 layers of 450 g/m² glass fiber felt.

SphereCel GF, a glass core felt product, provides low resin absorption and is lightweight. These properties make SphereCel suitable for very thin laminations. SphereCel also helps to make the composite parts it is used in light and strong. Because it has a solid glass structure, it ensures that screws and other fasteners are securely fixed. Because it is made of glass fiber, SphereCel’s appearance is also improved. This special core felt is available in different thicknesses and comes in 100 cm wide rolls. As it is available in different thicknesses, SphereCel has a suitable use and flexibility for various applications. SphereCel is especially preferred in the composites industry due to its high performance and various thickness options.

Nonwoven Polyester Properties

Nonwoven polyester is a type of fabric with frequent holes. These easily recognizable holes allow the material to be wetted. It also creates more vertical joints and helps release trapped air bubbles from the lamina. This product has various functional features and is used to hold screws. For example, it can be used around the perimeter of swimming platforms, positioned in the installation of friction rails. It also has micro-crack prevention properties. It has the effect of reducing cracks and stress cracks that may occur in gel-coated parts during demolding.

This polyester glass core felt ensures longer product life thanks to its shock resistance. With its water absorption, even and versatile fiber distribution, it is a high performance product compared to other products on the market. Other properties of this polyester can be explained as follows:

It is a light and portable material as it has a low density.
Polyester fiber has natural durability. With this feature, it stands out as a long-lasting and environmentally friendly product.
Thanks to its water repellent feature, it is water repellent and not affected by moisture.
As it is flexible, it allows polyester to change its shape and make it a suitable product for various applications.
High heat and sound insulation.
Resistant to many chemicals.
It can be easily cut, shaped and glued to surfaces.
As it is a recyclable material, it saves energy and does not harm the environment.
It is preferred in various application areas because it is economical.
Fast and easy to use.
High surface quality.
It has excellent impact and shear strength combined with low weight.

With all these properties, this polyester proves to be an important material. It is preferred in many applications because it is a special material. Omnis Composite offers this product in different types. Nonwoven polyester and glass core reinforcement products offered by Omnis Komozit include:

Nonwoven Polyester Core Felt: Polyester surface fleece is produced by volumizing with thermoplastic microspheres. Polyester core felt is easy to mold and shape as it is produced in a flexible structure. It is recommended to soak it outside before putting it in the mold to avoid rupture and tearing. This polyester core felt is applied by placing it between the fiber reinforcement layers during the lamination stage. However, this polyester core felt should not be applied directly to gelcoated surfaces. It is offered in 1 – 2 – 3 – 4 – 5 mm thicknesses and roll width is 100 cm.

PrintBlock Nonwoven Glass Fiber Core Felt: This material is made of glass fiber. It can be applied dry between gelcoat and barriercoat. It can also be applied behind a layer of impregnated fibers by closed molding. Folding and tearing on top of each other will not affect its performance. Roll width is 130 cm and 1.3- 2 mm thickness options are available.

SBF-OM-CM Sewn Glass Fiber Core Felt: OM is suitable for open molding, infusio and LRTM methods. Saves approximately 40% resin. It can be preferred instead of core materials such as PVC and balsa. Available in 6 – 8 – 10 and 12 mm thicknesses and roll width is 127 cm.

SphereCel HX-OM-CM Polyester Core Felt with Nonwoven Honeycomb Structure: Polyester core felt has a honeycomb structure. It acts as a resin flow and is suitable for epoxy, vinylester and polyester resins. This polyester core felt is 1.5 – 2 – 3 mm thick with a roll width of 100 cm.

Uses of Nonwoven Polyester

This polyester can be used in different areas as it has versatile properties. In general, the areas of use can be listed as follows:

Construction industry: Widely used in wall coverings, insulation materials, roof coverings, water and sound insulation products in construction areas.
Packaging: Used to protect and coat products such as packaging materials and food bags.
Medical products: Thanks to its barrier properties, it is preferred in medical masks and dressings.
Agricultural products: Seed bags, garden protection cloths and plant covers.
Furniture: It is a preferred material for home or furniture products such as upholstery, pillows, curtains and carpets.
Filtration Used in air filters and many industrial filters thanks to its durable and permeable structure.