In many different kinds of fiberglass products, it has the highest similarity between molding FRP grating and pultrusion product. It’s different from molded craft, while produce FRP grating by pultrusion technology. FRP pultrusion technology is a assembly by bars, but the molding craft is not. You get the only product ,while using the only mould.
The same features between mold craft and FRP pultrusin technology:
They are both the FRP production craft, also the product produced by those two ways can be combined. For example, when we install the operating platform, the key bars are FRP grating, but minor bars are pultrusion technology product, such as FRP holder, FRP square tube and channel, bars and so on. In a word, the most similarity between them is supplement each other.
The differents features between molded craft and FRP pultrusin technology:
Relative to the similarity, the difference will be more.
1.The feature
pultrusion technology: fast production, easy operation, good variability(just change the mould, while produce the new production). As a result, the kind of pultrusion technology product is more than molding craft product.
Molded craft: the weakness is mainly aritificial operation, a waste of time, the mold can’t be changed, single product shape. But the advantage is stable property and durability.
2.Theory of production
Pultrusion technology product is produced by semi-automatic equipment, fast and easy operation, while the molding craft bars is made by aritificial operation, a waste of time and complex operation.
3. Usage
they have different range and occasion of usage. For example, FRP bridge is made of pultrusion technology bars, but fiberglass molded grating can’t achieve it.
Source: www.unicomposite.com
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