A fiberglass mesh with a weight of 145 GSM (grams per square meter) typically consists of fiberglass strands woven together to form a mesh fabric. Here's an overview of its potential content:
1. **Fiberglass Strands:** The primary component of the mesh is fiberglass. Fiberglass is made from fine fibers of glass, usually created by drawing molten glass into thin strands. These strands are then woven or laid into a mesh pattern.
2. **Binder or Coating:** The fiberglass strands may be coated with a binder or resin to hold them together and provide additional strength and durability. This coating can also enhance the mesh's resistance to weathering, chemicals, and abrasion.
3. **Coloring Agents:** Since you mentioned "white" fiberglass mesh, it's likely that the mesh is treated or coated with a white-colored substance for aesthetic purposes or to provide additional UV resistance. This coloring agent could be a pigment added to the binder or resin.
4. **Other Additives:** Depending on the specific requirements of the application, other additives or treatments may be included in the mesh. These could include flame retardants, anti-static agents, or additives to improve adhesion to other materials.
The exact composition of the fiberglass mesh may vary depending on the manufacturer and intended use. It's essential to check the product specifications provided by the manufacturer or supplier for detailed information on the content and properties of the mesh.