Mold Manufacturing
Astacomposite employs technologies for producing master models, molds, matrices, and tooling made from fiberglass, glass fiber, and other materials for projects of various scales and industries.
Matrix production – is a critical stage of the manufacturing process and is the most complex and responsible task, as the quality of the matrix directly determines the quality of the final product. Therefore, special attention is given to this stage of mold production.
Fiberglass Matrices – Stages of Production:
To create any matrix, a master model is required. This is the prototype of the future product that precisely replicates its shape. The quality of the master model must be exceptionally high. Errors in dimensions, shape, unevenness, or surface roughness are unacceptable.
The master model is either made from the same material as the final product or, more commonly, from any suitable draft material such as wood, plaster, metal, or polystyrene.
After the master model undergoes final processing, including waxing if necessary, the matrix fabrication process begins.
For molds, fiberglass or carbon fiber and special matrix gelcoats are used.
The gelcoat can be applied in two ways:
- Manually – using a brush;
- Spraying – using a cup spray gun.
The matrix gelcoat is applied in several layers of varying thickness, with each layer being cured to a “tacky” state before the next is applied.
It is crucial to lay the fiberglass without unevenness or air bubbles. Pre-cutting the mats may be necessary for this. Each layer is coated with special polyester resins.
Another important stage is applying the reinforcing layer, which provides the matrix with the necessary strength and rigidity, making it resistant to bending and tearing and preventing deformation during use. The finished matrix is polished to remove even microscopic roughness or unevenness, and a release agent is applied. This semi-permanent layer ensures that finished parts can be easily removed from the mold.
By entrusting the production of your matrix (prototype) to us, you can be confident in receiving a high-quality matrix within the agreed timeframe.