470g Carbon Fiber Composite Mat

470g Carbon Fiber Composite Mat is a two-layer composite material with a total areal weight of 470 g/m². The main reinforcement is 450 g/m² chopped roving, while a 20 g/m² carbon fiber mat forms the surface layer.

The two materials are combined into one mat rather than supplied as separate layers. During composite lay-up, the material can therefore provide reinforcement and a carbon fiber surface in the same operation. This construction is useful for manufacturers that want to control the reinforcement weight while avoiding an additional surface-mat placement step.

Technical Specifications

450g Chopped Roving for Higher Reinforcement Loading

The main difference between EMKC470 and the lighter grades in the same series is the 450 g/m² chopped roving content.

The reinforcement structure can be viewed as:

450 g/m² chopped roving + 20 g/m² carbon fiber mat = 470 g/m² total

This higher chopped-roving content makes EMKC470 suitable for laminate designs where more reinforcement is required per layer.

For manufacturers selecting between the three 20g carbon fiber surface mat grades:

The carbon fiber surface layer remains at 20 g/m² across the three grades, while the chopped roving changes. This allows the reinforcement level to be adjusted without changing the basic surface-layer configuration.

Material Structure and Lay-Up

One practical reason to use a combined composite mat is the reduction in separate lay-up operations.

With conventional construction, a manufacturer may need to position:

Chopped reinforcement → carbon fiber surface mat → resin

With EMKC470, the chopped roving and carbon fiber surface mat are supplied as a combined material:

EMKC470 → resin → molded composite

This does not mean that the material is suitable for every molding process. The actual lay-up method should be evaluated according to the resin system, mold design and required laminate properties.

For repeated production, however, a combined material can make the material sequence easier to standardize.

Where EMKC470 Fits in Composite Manufacturing

Processing Considerations

The material is intended for use with resin-based composite manufacturing processes. Before moving to bulk production, the following factors should be checked:

Resin type and viscosity

Resin wet-out behavior

Required fiber/resin ratio

Mold geometry

Lay-up sequence

Curing conditions

Required surface appearance

Final mechanical requirements

For a new application, sample testing is recommended before fixing the production specification.

Yuruis can discuss the material according to the customer's existing composite process and required dimensions.

Custom Width and Bulk Supply

The standard specification provides a width range of 150–3200 mm. Customers purchasing for continuous production can provide the required width, estimated monthly or annual consumption, roll requirements and application.

For a bulk quotation, it is also useful to specify the destination market and packaging requirements so that the production and shipping arrangements can be evaluated together.