Main characteristics of glass-epoxy composites
Low thermal conductivity
Good resistance to high temperatures
Excellent dimensional stability
Suitable for sealing applications
Excellent toughness
High mechanical resistance
Good dielectric strength
High wear resistance
Excellent compressive strength
Main characteristics
We can also undertake the full implementation of the project in our specialized workshops. Epoxy glass has good corrosion resistance, retains its original shape and adheres to a wide range of metal surface structures. Certain properties of epoxy glass make it ideal for corrosion resistant coatings and enclosures.
Low moisture absorption.
Low chemical reactivity
High tensile strength
High radiation resistance
Manufacturing
Some products (e.g. pipes) are composites consisting of a fiberglass matrix. Epoxy resins act as reinforcement. An epoxy resin, or polyepoxide, is a resin produced by condensing and polymerizing epoxy monomers using a curing agent or other equipment.
Manufacturing steps
Batching
Immediately after batching, we proceed to the heating or melting process. Batching is the first step in fiberglass molding. We mix equal amounts of raw materials in a tank.
Heating and Melting
After the batch has been prepared, it is transferred to the furnace for melting. We can heat the furnace in different ways, e.g. with electricity or fossil fuels. The temperature of the furnace must be controlled to maintain a uniform and steady flow of glass. The temperature range of the furnace must be between 1200-1500 °C in order to melt the glass. The melted glass is transferred to the molding machine by itself. At the end of the furnace there is a long cylindrical tube, also known as a forehearth.
Manufacturing
Depending on the type of fiber, we use different types of processes for manufacturing fibers. Textile fibers can be formed into molten glass directly from the furnace, while the formation of other fibers requires some unique processes. We use the spinning process to manufacture glass wool. The molten glass stream is converted into fibers by falling emissions from air, heat, or both. We use epoxy resins as a matrix to reinforce the fibers.
We can use thermosetting materials such as “glass fiber reinforced epoxy resin” for sheathing. Their minimum required thickness is 4 mm. Dosing and mixing of epoxy resin components and installation of different layers of resin and glass fibers. This shall be done in accordance with the manufacturer's instructions.
We shall apply the specific epoxy resin on the spotless and well-organized surface of the substrate. The manufacturer must fill any remaining cracks and voids in the concrete surface with the resin. We shall apply the coating and resin sheet “wet-in-wet”. The resin sheet should be cleaned with a sandblaster or roughened with sandpaper before laying the next layer of laminate.
We should cover the surface with resin. Fiberglass and resin must distribute themselves during the rolling process. We must saturate the fiberglass reinforcement completely and exclude the air. The coverage of the glass fiber reinforcement must be between 25 and 50 mm. We use a mixing kit to measure the amount of material. We must complete the mixing and dosing process according to the manufacturer's instructions.
To ensure good adhesion of the film to the blocks, the final and sealing layer of thermosetting resin is silver-sanded.