Here’s a good example of The Mind Over Matter breastmilk preservation wet method. This shows the method next to the client’s actual milk used. The two pearls show how the cure-out phases go with this method. When the breastmilk is cast it tends to be a dramatic, crisp white. This method cures out to a more natural milk color once it settles (oxidizes) into the resin. Some might consider this discoloring, but as spot on as my pieces seem to cure out to, I’d say it’s much more natural than the super white pieces that typically don’t represent the natural colors of the milk.

I also have a photo of a cured-out ring next to the client’s actual milk. I thought it was pretty stunning how well the gem represents the actual milk from my client.

There are many different types of resins you can choose from if you are looking for a crafter or trying out your own hand at the craft.

ALL require safety gear, no matter what the package, or your artist claims. Be sure to use a well-ventilated area with the proper eye, face, and skin protection.

There are MANY different types of resins, but I’m only going to talk about a couple. (Ones I have the most personal experience with.)

Epoxy resin. This is what I use for almost all of my crafting, though I use various brands for different looks and reactions as they all work a little differently and hold up differently. I use jewelry-grade resin for my jewelry crafting and sealing. Pros to epoxy resin are that it’s pretty easy to use and can do a great deal of work with it. Cons is that it isn’t very heat or scratch resistant to extreme temps and can yellow with time and improper care. Does release curing gasses for up to 30 days after cure out.
**Even food-grade resins are only for incidental use only, this doesn’t mean the food should be eaten directly from the resin, it means, the food, such as a cupcake can be used with it because it has a wrapper between the two. DO NOT use resin items for direct contact with food or use with any amount of heat.

UV resin. This is what a lot of crafters use because it is a quick and easy product that you don’t have to wait nearly 14 to 24 hours to be done. This requires UV light to work and is also relatively easy to use. Pros it’s fast and rewarding to see your pieces right away. Cons, it’s not very long-lasting as some crafters would like you to believe. It yellows quickly and is only really made to last for a year or two. It can become brittle and break and is not recommended for thick castings and is not recommended for a sealer/protectant. AND it can actually continue to leech toxins for long after it is cured.

Polyresin. This is an extensive list of resin types. I’ve only worked with one poly resin and ended up throwing it away because it was awful. Pros are that it cures quickly and hard. Cons are that is incredibly potent, so you need to use a ventilation tent or outside applications. It is also more difficult to cure resin depending on what you are adding to it and what climate you live in. It also yellows very fast. Leeches toxins for months after cure out, and easily cracks when it gets cold.

You can obviously find a lot more detailed information about the types of resins and why which one should be used with a quick google search.

My top choice for my keepsake work is hands down, the epoxy resin in 2 parts. I have pieces over 8 years old that are yet to show signs of aging resin. Choose your brand wisely.

2 part epoxy is stronger and much better of an option to use for many reasons. The crafters who are using UV for keepsakes are not using what's best for their pieces/clients. A lot of them are using UV merely for the fact that it cures fast and gives instant gratification as well as a way to pump out orders. While I agree, waiting 14 to 24 hours in between pours is a drag, it's really best. It isn't a long-term epoxy nor jewelry grade to be crafting keepsakes with and IMO pretty irresponsible.

All resin/epoxy is bound to change over time. Like most plastics, they can absorb colors and oxidize over time. It's up to each crafter to find which holds up best with time and which holds up best with the method of preservation they are using. Different chemicals react differently in each epoxy.

Happy crafting.!