It is feasible in theory. But the actual production: first, a product and mold that make molds can never be handled perfectly; Second, mold demoulding will stick with demoulding wax, which needs cleaning, grinding and polishing; In the production process, the mold surface needs to be cleaned, polished and polished regularly to keep high gloss and smoothness.

As you said, the only explanation is that the mold can't be polished. The gloss of similar varnish is different from that after actual polishing. This slightly experienced master should know. The surface sprayed with varnish looks like a high-gloss and smooth surface, but the standard of the surface as a mold is still not up to standard. I won't talk about these digressions here.

Regarding FRP molds, Metropolis makes molds according to the material and process requirements of the products. Gypsum model itself can not meet the requirements of mold making, so it is recommended to use wood products, steel products and aluminum products to turn over the mold. Wood products are a little more complicated, such as making, grinding, painting, polishing and waxing. Only by making the model perfect (if the product can't be polished here, the problem can't be solved) can we make a high-standard mold. Then steel products can be realized by numerical control, or they need to be polished into mirrors. On this basis, I think the turned-out mold will meet your requirements relatively, but as mentioned above, it is impossible to make a high-quality mold once and for all because the mold itself needs to be trimmed and maintained. Personally, I think that if we just turn the gypsum products upside down and wax them frequently, we should be able to extend the mold maintenance cycle.

Do you know the key points of the manufacturing process of FRP?