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What is the process for silicone mold production?
Learn about the step-by-step process of silicone mold production, from material selection and mold design to curing and final quality checks. Understand the key stages involved in creating durable, precise silicone molds for various applications.
- 1. Prototype Processing: Fabricate/Refine Product Prototypes (Resin/Gypsum/Metal), ensuring smooth surfaces free of burrs, and apply release agent when necessary;
- 2. Mold Frame Assembly: Enclose the prototype with wooden/acrylic boards, leaving a space for silicone thickness (typically 5-10mm);
- 3. Silicone Mixing: Mix the base silicone and curing agent (common ratios of 10:1 or 20:1) in proportion and stir thoroughly;
- 4. Vacuum degassing: Place the material in a vacuum machine to remove air bubbles (to prevent sand holes in the mold). If no equipment is available, pour slowly to minimize air bubbles;
- 5. Pouring/Brushing Molds: Simple shapes are directly poured, while complex shapes require multiple brushing sessions (to enhance mold toughness);
- 6. Room Temperature/Heat Cure: Cure at room temperature (25°C) for 4-8 hours, or reduce to 1-2 hours with heat (60°C);
- 7. Demolding and Trimming: Remove the mold frame, take out the prototype, and trim the mold burrs and excess silicone;
- 8. Trial Inspection: Verify the integrity of the mold cavity by producing 1-2 trial pieces to test demolding performance and precision.
