E-Glass, HR-Carbon or Aramid Fabrics - Page3

Question

In what order should the resin and fabric be applied?

Answer 1

To achieve proper lamination with a fabric (glass, carbon, flax, aramid), it is important to follow the correct application sequence in order to ensure good fibre impregnation and avoid the formation of air bubbles.

The first step is to apply a thin layer of resin directly onto the substrate (wood, foam, metal, composite, etc.). This layer prepares the surface and improves the adhesion of the fabric.

Next, place the dry fabric onto this first layer of resin. The resin already present on the substrate helps hold the fabric in place and facilitates its impregnation.

Once the fabric is properly positioned, apply another layer of resin on top using a brush, roller, or spatula. The goal is to fully impregnate the fibres until the fabric becomes translucent (in the case of glass or flax) or uniformly saturated.

After applying the resin, it is recommended to perform air removal using a laminating roller (bubble roller). This step helps remove trapped air within the fibres and ensures a uniform and strong laminate.

If multiple layers of fabric are required, simply repeat the same process:
resin → fabric → resin → air removal.

Following this sequence ensures optimal fibre impregnation, good bonding between layers, and maximum mechanical performance of the final composite.

Answer 2

The resin is applied with a brush or roller by progressively impregnating the fabric laid on the substrate. It is important to work in thin layers, remove air bubbles, and respect the resin/hardener mixing ratio.

Answer 3

Air bubbles can be minimized by working slowly, using a well-mixed resin, and maintaining a stable temperature. Using a debubbling roller or vacuum bagging helps achieve an optimal, professional result.

Answer 4

The method consists of placing the fabric on the substrate, applying the resin progressively, then working the saturation with a brush or roller until the fabric becomes translucent.

Answer 5

The number of layers depends on the final application: light reinforcement, structural part, or aesthetic purpose. One to two layers are sufficient for simple reinforcement, while technical applications require several stacked layers.