Detailed description: silicone mold making process

To prevent silicone four mold species with wooden poles or planks fixed in the scope of a rule, the opening piece mold with wood and clay separating the first open that sector, the requirements that there is no gap between the sludge and mold the clay surfacesmooth.
On the cast or mold species in the above-mentioned preparation is finished, then coated with vaseline or sprayed with release agent, smooth product requirements with a clean cotton cloth coated with Vaseline coated in the mold species average, for 30 minutes to mold species full absorption of Vaseline, and then a clean cotton cloth to clean the mold surface, requiring bright surface; texture evenly coated with petroleum jelly can be according to formula silicone tone. Silicone deployment according to the irregular direction for mixing, curing agent and silicone mix to minimize the air mixed with gel, smooth product is best when coated with the first layer of plastic pumping a vacuum, the vacuum degree requirements to maintain-0.1Mpa 7-8 seconds.
Silica gel with a good timely molding. Glue with trickle down in the highest parts of the mold species, let the natural flow, the flow is not in place with a painting brush in place, if it is a piece mold silicone not only covered the entire product and have to brush the average clay on. Each product at least brush each layer of silica gel of the three-layer silica gel thickness of 1 mm, silicone brush, require curing each layer in order to brush another layer, brush the third layer on the second floor above plus a layers of gauze to increase the strength of the silicone. Throughout the silicone mold department in accordance with the size of the product requirements of thickness control in 3-4mm, the width is not greater than the product of the width of 60mm. Silicone clotting time was 20 minutes.
A master mold dry cleaned for smooth handling (can play a layer of mold release wax or brush one release agent)

2, 500-1000 g mold silicone rubber (silicone mold, plastic mold, silicone rubber, silicone) Sheng, such as plastic pots spare;

3 hardener weight ratio (typically 1.5-2.5%) weighed into the container to mix, stir the average;

4, depending on the situation (especially the first layer) to a certain amount of Silicone thinner. Until blended average date, usually 3-5 minutes.

5 Mold silicone rubber (silicone mold, plastic mold, silicone rubber, silica gel) and hardener mixed at room temperature, the reaction, and acquit the low molecular weight alcohol, the alcohol molecules from the colloid to be ranked in the negative pressure bubble 1-3 minutes. May also not with the equipment (mainly depending on the experience of the manipulation of the mold division)

6, multi-layered the brushing piece mold, to be followed within and outside at the same time curing is appropriate. The curing agent is relatively low, the reaction time is lengthened, the full response, colloid like curing agent is preferably within less foreign. When brushing until the first layer (inner layer) dry and then brush the second layer. Manipulation of time of 30-50 minutes, the removal time is 10-15 hours. The curing time of 24 hours. Pay attention to brushing the first and second floor plus the best cloth, such as mold and greatly advances the life of mold (but must not use the glass fiber cloth, otherwise easily lead to stratification and make the entire mold scrapped)

7, three-dimensional perfusion mode, generally 10-15 hours of curing as well.

8, the soft mold making is completed but also produced to support the plaster or fiberglass jacket soft silicone mold to pay attention to: a parting line options: choose easy to dismantle easily processed after grouting location; select the mold itself in the position does not affect the appearance of the product; mode position; not easily deformed position 2, is driven out of the production progress must not blindly increase the amount of hardener, otherwise it will greatly reduce the life of the silicone mold.