First to booglass
, I don't think that epoxy resins (or any kind of resin) would be allowed on an airplane (or even in the mail), so you might want to check out art supply places, as well as craft or hobby stores for either epoxy resin or polyester resin (generally, you'll want the craft
type if you get a polyester since the polyesters used for "fiberglass" etc. aren't as reliably clear and smooth).RaraAvis
, as mentioned, ice cube trays are often used as molds
for resins if regular molds for resin haven't been purchased because they're made from the kind of plastic that's flexible, very smooth, and can take the heat of curing resin (HDPE plastic usually)... or they're made from silicone which will work the same way. (Any scratches or non-smoothness won't give the glossiest surface to the resin though.)
As for casting dried roses in molds deeper than 1", you could probably find an ice cube tray of some type that would work, or you can purchase resin molds from art supply stores and craft and hobby stores usually, or online:http://www.kaboodle.com/hi/img/2/0/0/8b/1/AAAAArzRUSQAAAAAAIsVRw.jpghttp://www.delphiglass.com/index.cfm?page=itemList&viewcat=3732
Or you can buy silicone things online or at kitchen stores, as well as in craft stores, etc.http://www.flickr.com/photos/mikenan1/2812884464
You'll have to consider the type and brand of resin
that will work best for this particular purpose too since you want to use a mold, and remove the hardened resin afterward.
The 2 basic craft choices are clear polyester
resin and epoxy
resin, with polyester being the one that's good for reliably casting in molds that are deeper than about 1/2".
Epoxy resins can also be cast in molds but they are more adhesive and a bit more expensive, though safer, than polyester resins. Usually epoxy resins are poured into permanent cells
of some kind though (over a photo, or little bits of things, etc.) rather than in molds, or epoxies are used for giving a very thick clear coating to items... one type of that kind , sold at hardware stores, would be referred to as "bartop resin").
The biggest problem with polyester resins is that the side that cures next to the air will often not cure thoroughly
so that surface may stay a bit sticky (if don't do certain things), and polyesters are less safe for lungs than epoxies.
One line of epoxy resin put out recently is kind of a hybrid between epoxies and polyesters (called Easy Cast) and it can reliably be cast in deep molds and is "safe," but if it's exposed to body heat or higher, it will become kind of soft, and if it's thin it will be flexible. It may be fine for your use though, especially if you put a backing of felt or something on the back side so it won't get too warmed up.
As for mixing resins, polyester resins can be more fiddly than epoxy resins since epoxies are almost always mixed one-to-one, whereas polyesters are mixed with a few drops of the catalyst part to a lot of the other part and the number of drops can vary depending on various factors (if mixed wrong, can be problems later).
You can find all kinds of info about the types of resin, brand names**, advantages/disadvantages, application methods, how to get rid of normal bubbles, etc., etc, on this page of my site if you're interested:http://www.glassattic.com/polymer/other_materials.htm
** The most common brand name of clear craft polyester
resin is Castin' Craft Clear Polyester Casting Resin
... the most common brands of craft epoxy
resin are Envirotex Lite
, Aristocrat's Liquid Glass
, and a few others;
... the only "hybrid" epoxy
resin that cures fairly hard is Easy Cast
(the Castin' Craft people's foray into making an "epoxy" resin).
And here are some other replies I've written here summarizing into about resins, etc:http://www.craftster.org/forum/index.php?topic=275238.msg3112408#msg3112408http://www.craftster.org/forum/index.php?topic=293667.msg3341730#msg3341730http://www.craftster.org/forum/index.php?topic=254029.msg3522191#msg3522191
Btw, you'll probably want to pre-dip your roses in resin, or do something else, to keep air from getting trapped in the folds of the petals which will later create excess bubbles or cloudiness in the resin.
(Since you're unfamiliar with resin, I'd definitely try some practice runs if you only have one special rose.)