Troubled by Liquid Silicone Mold Demolding Difficulties? Identify These Core Causes!
Liquid silicone molds, with excellent flexibility and high-precision replicability, are the preferred choice for replicating complex-shaped products, widely used in crafts, food molds, and industrial parts. However, demolding difficulties in production often trouble operators—slowing efficiency, causing product damage, and increasing costs. What causes unsmooth demolding? Let’s break down the core reasons!
I. Core Cause 1: Substandard Quality and Performance of Silicone Materials
Silicone material quality is fundamental to smooth demolding, and excessively high viscosity is a common issue. As a key indicator of fluidity, high viscosity reduces silicone flow during injection, preventing uniform filling of mold cavities. This causes incomplete molding and irregular adhesion between silicone and mold walls, increasing demolding resistance.
II. Core Cause 2: Improper Control of Curing Time
Curing is critical for successful demolding, and incorrect time control directly causes problems in two scenarios:
Insufficient curing time: Uncured silicone leads to product deformation/damage and strong mold adhesion, making separation difficult;
Excessive curing time: Over-cured silicone becomes hard and brittle, prone to cracking during demolding, with abnormally increased mold adhesion.
For example, short curing time for large craft molds causes internal under-curing and deformation during demolding due to uneven force; excessive time makes products too hard, leading to cracks when demolded.
III. Core Cause 3: Incorrect Judgment of Demolding Timing
Even with proper silicone and curing time, wrong demolding timing fails. Early demolding causes under-cured product deformation/damage; late demolding increases product-mold adhesion. Operators must judge timing based on silicone curing time, product shape and size.
In summary, liquid silicone mold demolding difficulties result from combined factors like materials and processes. To solve this, start with these aspects. Jiajinghong Silicone advises choosing suitable materials. Purchasing our liquid silicone raw materials includes professional guidance on standardized operations, helping improve efficiency, ensure quality, and reduce costs.
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