How to create shiny jewelry with any matte mold

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How to create shiny jewelry with any matte mold

I received a message from Valerie who wondered if using our molds, she had to sand the resin molding and especially what should result expected: a matte molding or a glossy molding?

It is true that now our catalog includes both matte molds and shiny molds.

The rule is that the molding will always take the characteristic of the surface of the cavity.

So a mold with shiny cavities gives directly shiny resin moldings.

A mold with matte cavities gives matte resin moldings.

Be careful to check the inside of the cavities of the mold. Some molds (culinary in particular) are matt on the outside and shiny inside the cavities. Or vice versa.

However, stay relaxed if you ever made a mistake while shopping.

There is a way to obtain shiny moldings with matt molds and opaque moldings with shiny molds.

I still recommend that you contact the seller if the product sheet does not mention the characteristics of the cavity surface of the mold. Even though there is a way to create from any mold, it's better to make an informed choice

How to vary the surface of resin moldings without having to multiply the purchase of silicone molds?


Yes ... but not with any kind of sanding

There are several things to consider:


You must get to know your resin.

For example, the polyester resin is "softer" than the epoxy resin. Do not apply the same gestures.

The tools

Depending on the abrasive grain you will remove more or less material.

P100 paper will remove a lot of materials, so do not use it for finishing. He will scratch your molding. But it is very useful when you have to rectify a molding. For example resin that would have overflowed the cavity. You will then save valuable time.

P2000 paper will be perfect for finishes as long as the surface is flawless. If you have a bubble on the surface you will lose a lot of time to sand with this type of paper. It is better then to go back through the sanding step with a more abrasive paper.

The sanding process. Will you sand by hand or mechanically? Do you prefer sanding with water or dry? How many steps will you take?


And yes, you have to love learning to create quality jewelry.

You have to be versatile.

You have to give yourself time to specialize.

One resin is not another, if you have the opportunity to test several resins (epoxy, polyurethane, polyester), do it!

An abrasive grain is not another, it can be glass, emery, corundum, ...

The abrasive can be used with different media, there is paper, sponges, paste, ... Again, I recommend you dare to test several tools.


It's quite an experience to acquire.

But that's where lies the wealth of our leisure!

The more you train, the more freedom you have in creation.

Learning to sand the resin allows not to be limited in the choice of molds.

You will not waste time looking in vain for a mold if you know that you have the skills to vary the finitons of your casts.


Discover our sandpapers for a satin or shiny surface!
P400 sandpaper for a satin surface
P2000 sandpaper for a glossy surface