◆ Mold library
Soap mold STL files
Printable soap bar and shaped soap molds for melt and pour and cold process.
◆ Mold library
Printable soap bar and shaped soap molds for melt and pour and cold process.
5 designs · print times from 12 h 47 min
Pro early access
Soap
Six scallop shell guest soaps from one silicone tray, ribs and hinge included.
Pro early access
Soap
An 88 mm soap bar with a rippled face, as a silicone mold from a printed box.
Pro early access
Soap
A dinosaur chicken nugget, breaded texture and all, as soap. A rigid two-part mold, no silicone.
Pro early access
Soap
Four scalloped round soaps with a domed top, poured into a printed tray.
Pro early access
Soap
Four oval soap bars with a raised botanical sprig on top, poured into a printed tray.
Soap needs a flexible mold to come out with sharp edges, so most of these designs are trays that you print once and use to pour a silicone mold, then cast soap in the silicone. That keeps soap off the layer lines and lets a bar with raised botanicals or scallops release in one piece.
Melt and pour soap is the easiest start: pour at about 55 to 60 °C, spritz the surface with alcohol to pop bubbles, and demold once it is hard, usually after an hour or two. Cold process soap needs 24 to 48 hours in the mold.
Questions
Melt and pour soap will release from a smooth, simple print with a little release agent, but it copies every layer line. For a clean bar, cast in a silicone mold made from the printed tray.
Around 55 to 60 °C. Hotter soap can sweat, burn fragrance off and soften a PLA print; cooler soap starts to skin over before it fills fine detail.
Let it harden fully, then peel the silicone away from the edges before pushing from the back. If it sticks, 15 minutes in the freezer shrinks the bar slightly and it pops out.
Yes. Drop any STL into the free tray mold maker and it builds a multi-cavity tray plus a flexible caster around it, in your browser.