When the hardness of the mold silicone is below 10 degrees, the silicone tear strength is low, the elongation is high, and the silicone product is prone to deformation; When the hardness is higher than 50 degrees, the tear strength deteriorates, and silicone products become brittle and easily break or break. When the hardness of silicone is generally between 20 and 40, the tear strength, elongation, etc. are the best conditions. In addition, the lower the viscosity (better fluidity), the more favorable it is for vacuuming and exhaust bubbles, but at the same time, the tear strength also decreases and the number of mold replicates decreases.

0 degree hardness mold silicone is an ultra soft silicone that is an additive colorless transparent liquid with excellent electrical properties and chemical stability. It is resistant to water, ozone, climate aging, corrosion, physiological inertness, low linear shrinkage, and easy to operate. Mainly used for chest pads, shoulder pads, etc., the silicone products made are washable, bubble free, and will not shatter.

Silicone with a hardness of 5-10 degrees is a soft silicone material with low hardness, good flowability, easy pouring, and no corrosiveness. It is very suitable for soap handicrafts with delicate and soft patterns. The soap molds produced do not emit oil, deform, and have a smooth and bright surface.

Silicone with a hardness of 10-25 degrees is recommended for products with sizes between 10-20 centimeters. It is suitable for replicating product models with very fine patterns and performing injection molding operations. This mold opening method is relatively easy to demould and will not damage the products inside the silicone mold. It can be used for making candles, replicating various handicraft models, and can also be used for clothing label embossing (adhesive planting), etc. Candle silicone can be selected from two types: condensation type and addition type. The produced handicraft silicone candle can be quickly ignited and continues to burn normally until the candle is burned out, without any oil during the combustion process.

It is recommended to use silicone with a hardness of 25-30 degrees for products with sizes between 30-50 centimeters, and it is suitable for selecting a brush mold opening method. Condensed silica gel can be used for making silica gel molds for gypsum, cement, concrete, Rapid prototyping, GRC European components, large cement components, imitation marble, artificial cultural stone, etc; The addition of transparent silicone can be used for injection molding, imitation diamond, jewelry model production, and so on.

It is recommended to use brush molds (split mold, three-dimensional mold, flat mold) for silicone with a hardness of 40-50 degrees, which is suitable for products with less precise patterns;

If the customer is making small products with very fine patterns, they need to use slightly softer silicone; If you are making larger products, you need to use silicone with a higher hardness of 32-35A °.