A Must-have for DIY Candles! The Liquid Silicone Rubber Mold Material is Easy to Operate and Demold

A must-have for DIY candles! The liquid silicone rubber mold material is easy to operate and demold  

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The core operation of candle mold silicone rubber lies in controlling the proportion accuracy, eliminating bubbles, standardizing curing and demolding. The specific process can be divided into preparation, mixing, injection molding, curing, demolding and post-treatment. The steps are as follows:

I. Preparatory Work

Tool and material inventory Prepare candle mold silicone rubber (usually A base rubber + B curing agent), stirring rods (it is recommended to use wood or plastic to avoid scratching the container), measuring tools (electronic scale, with a precision of 0.1g being the best), clean stirring containers (dry and free of oil stains, it is recommended to use them only once), and prototypes to be replicated (candle samples or models, the surface should be smooth and dry A layer of mold release agent can be applied in advance to facilitate subsequent separation. Mold frame (customized according to the size of the prototype to prevent silicone from overflowing).

Environmental pretreatment: The operating environment should be kept dry and well-ventilated, with the temperature controlled at 20-30℃ (this temperature range can ensure the normal curing of the silicone, avoiding high temperature accelerating curing and causing excessive bubbles, while low temperature will prolong the curing time). Clean the workbench to prevent dust and debris from mixing into the silicone and affecting the quality of the mold.

Ii. Silica gel Proportioning and Mixing

Precise measurement: According to the ratio provided by the silicone rubber manufacturer (the common ratio is 100:2, subject to the product manual), use an electronic scale to weigh agent A and Agent B respectively, ensuring that the ratio error does not exceed ±1%; otherwise, it may lead to incomplete curing of the silicone rubber, stickiness or abnormal hardness.

Thorough stirring: Slowly pour Agent B into Agent A and stir in a single direction clockwise or counterclockwise along the container wall. The stirring time should be controlled at 3 to 5 minutes to ensure that the two components are completely mixed. (Stir as gently as possible to minimize air intake. If a few bubbles appear, let it stand for 1 to 2 minutes temporarily.) Note: During the stirring process, scrape the bottom and side walls of the container to avoid leaving any unmixed base glue or curing agent.