Bulk | Flex | Remeltable Silicone Free Mold Maker

SiliNOT! Flex is available in 1 lb, 2 lb, 3 lb, 4 lb, 5 lb, and 15 lb package sizes to support different mold volumes and production workflows. Larger package sizes provide a lower cost per pound due to reduced packaging and handling overhead. For high-volume use or discounted pricing, refer to the Bulk Product listings.

SiliNOT! is measured by weight, but volume is easy to estimate: one pound of material equals approximately 400 mL (13.5 fl oz) when melted. To determine how much you need, calculate the volume of the object or mold box you plan to fill and match it to the equivalent liquid volume. This allows accurate sizing for both small molds and large production runs.

SiliNOT! Flex has a melt point of approximately 150°F (65°C), at which the material becomes fully liquid and ready to pour. For best results, it should be poured within a controlled temperature range of 130–150°F (54–65°C), where the viscosity is optimized for detail capture while remaining safe and easy to handle. Maintaining this temperature window ensures consistent flow, minimal bubbles, and reliable mold formation. Do not exceed 200F/93C.

SiliNOT! is compatible with a wide range of mold positives, including 3D printed PLA, PETG, ABS, and resin prints, as well as clay, wax, wood, metal, glass, stone, and most sealed or painted surfaces. It can also be used over silicone, rubber, and most cured plastics without adhesion, making it suitable for remolding existing parts or reproducing components. As a casting mold, SiliNOT! works well with epoxy and polyurethane resins, plaster, gypsum, cement, wax, soaps, low-melt alloys, and many craft casting compounds, producing clean releases and reliable detail.

While SiliNOT! releases cleanly from most non-porous surfaces, a mold release is recommended for complex shapes, porous materials, or deep undercuts. Food-safe oils, light cooking sprays, and thin layers of petroleum jelly all work effectively when applied as a light, even coating. Using a minimal amount prevents surface defects while ensuring easy separation and longer mold life.

SiliNOT! can be melted using a microwave, a double boiler, or a hot water bath, depending on your setup and batch size. Each method allows controlled, even heating to bring the material into its pourable range without overheating. For step-by-step instructions and safety guidelines, refer to the How-To Guide for your preferred heating method.

SiliNOT! Flex is engineered to balance elasticity and tear resistance, allowing molds to stretch for easy demolding while maintaining structural integrity through repeated use. It resists cracking, tearing, and permanent deformation, even with moderate undercuts and repeated casting cycles. This combination of flexibility and durability provides consistent mold performance across a wide range of casting materials and applications.

Store SiliNOT! in a sealed bag or container in a cool, dry environment to prevent contamination and moisture absorption. For cleaning, wash the material only in cold water and dry it immediately to maintain surface quality and performance. Spills or residue should be allowed to cool and solidify before removal, then cleaned with a mild degreaser and warm water.

SiliNOT! is made from non-toxic, food-grade ingredients derived from rice, citrus, and soy, making it safe for use in studios, classrooms, and home environments when used as directed. The material does not contain xylitol. It is not Kosher, Vegan or Halal. Care should always be taken when heating, as melted SiliNOT! can cause burns if handled while hot. Use heat-safe containers and tools, avoid direct skin contact with the melted material, and allow it to cool before handling or cleanup.