Sphere Mould Masters (mold) pack of 10 for making sphere moulds for orbs or pearls with resin. Keepsaker Supplies mould masters are for personal use only and not for resale or for selling moulds please. Please read our full Terms and Conditions and FAQ page before ordering.
Making Bead and Sphere Moulds
Sphere Mould Masters Dimensions
See product variation descriptions for each size. The size listed is the diameter of the sphere (from one side to another). We recommend that you experiment with pouring spout sizes to find which suits your designs and making style best. I tend to make spouts proportionate to the sphere size.
Making Silicone Moulds
Please use a pourable liquid silicone rather than a putty. You can use opaque, translucent or water-clear silicone for use with epoxy resin. To use UV resin you will need to use water-clear silicone so the light can penetrate. We recommend SORTA-Clear by Smooth-On in the USA, we have trialled other silicones but they don’t have the strength and can rip. A shore hardness (sh) of 18 or 20 is ideal but for soft moulds you can use sh15.
You can also use these spheres to make lens cabochon flatbacks by embedding them in wax or Plasticine about halfway up, but we recommend using glass masters for that which can be glued in place. Video coming soon of how Nikki makes moulds
How to Use a Mould from Sphere Mould Masters
You can make any necklace as usual then use this in place of the jump ring.
If working with UV resin we recommend you work in layers to achieve beautiful depths of colour.
These moulds are suitable for use with resin (UV resin, EcoResin, epoxy resin or polyester resin), concrete, polymer clay (air drying, heat curing such as Premo and Sculpey). We recommend removing the polymer clay from the mould before baking if not using air drying clay although they can be heated up to 130°C. To remove unset clay without warping it, we recommend cutting the mould vertically around halfway down. Although we use a food-safe silicone, we don’t recommend these moulds for use with food due to the manufacturing process.
Sphere Mould Masters Life and Care
These mould masters are sold for semi-permanent use and will degrade with use. This is normal and not classed as a fault. Please keep them dry and consider using a vegan bench skin to catch them when dropped so they’re not dented. The life of your mould masters will depend on the material used, the number of uses, how gentle you are using it, good storage, careful washing and environmental factors. The mould masters should be wiped gently after each use with a damp cloth, dried and polished before use with a lint-free cloth.
Settings and Findings
We recommend that you do not overfill the mould but allow a little extra resin in the pouring spout for bubbles to rise and to provide a grip to remove the cast. You can usually trim the excess before sanding, dome with resin if required.
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