RTV silicone into silicone and high temperature vulcanized silicone, the price difference very far, mainly based on product requirements to choose. The following describes the method of operation is the silicone brush mode.

Select the silicone mold parting line and the choice of the form is very important, first, to modulo convenient, and second parting line should be selected without affecting the overall effect of the product, third, it does not affect product quality, such as water features series-mode line position too high, seal the parting line when the material to be more prone to cracking products; fourth is under the process to reduce operating procedures, such as open mold half.

To prevent the flow around the silicone mold species with a wooden plank or a fixed rule in the range, when the opening piece mold with wood and sludge separated that part of the first to open, requiring between sludge and mold species no gap, sludge surface smooth. After the above-mentioned preparation work completed, followed by plaster mold or mold species coated with petroleum jelly or spray release agent on smooth product requirements with a clean cotton cloth soaked in Vaseline evenly coated in the mold species, held for 30 minutes to die kind fully absorb Vaseline, and then a clean cotton cloth to clean the surface of the mold species require bright surface; and as long as the product has a texture evenly coated with Vaseline on it.

By silica gel formulations adjusted. 7-8 seconds should be kept stirred silicone curing agent and silicone mix thoroughly to minimize the air mixed in gel, smooth product is best applied when the first layer of plastic pumping a vacuum, vacuum degree requirements -0.1Mpa.

Silica gel with a good timely molding. The glue in a way trickle down in the highest parts of the mold species, let the natural flow, flow not in place by painting brush in place, if the piece is not only full of mold silicone brush evenly throughout the product but also on clay. Each product brush at least three layers each layer of silica silica thickness of 1mm, silica gel in the brush process, requires curing after each layer to another layer of the brush when the brush is applied to the third layer on top of a second layer layer of gauze to increase the strength of the silica gel. The entire mold silicone part of the control depending on the size of the product at the desired thickness 3-4mm, width no greater than the product width 60 mm. Silicone start setting time was 20 minutes.

1, the master mold dry cleaned, for the smooth handling (can play a layer of mold release wax or brush one release agent)

2, the liquid silicone rubber mold (silicone) Sheng such as plastic pots spare; the amount depending on the size of the mold.

3, the hardener weight ratio (typically 1-5%) was weighed into a container for mixing, stir evenly (as hardener by itself and temperature on performance, it is recommended to use matching with silicone hardener);

4. Silicon rubber mold (silicone) and hardener mixture at room temperature that is reacting, and the release of low molecular weight alcohol, the alcohol molecules from the colloid as required under negative pressure discharge bulbs 1-3 minutes. Also available (depending on experience, as the main mold division) without the aid of equipment

5, multi-piece mold brushing should follow the inner, middle and outer while curing is appropriate. Curing agent is relatively small, the reaction time is lengthened, the full response, colloid like, thus curing agent is preferably within less foreign and more. Brushing until the first layer (inner layer) dry and then brush the second layer. Operating time 30-50 minutes, the removal time 10-15 hours. Curing time of 24 hours. Note brushing first, after the best two-story addition with gauze as a mold, which can greatly improve the mold life (but must not use fiberglass cloth, or likely to cause the hierarchical leaving the entire mold scrapped)

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

7, but also the production of plaster or fiberglass outer mold produced after soft to support the soft silicone mold

Note: 1, the parting line: Option without affecting the appearance of the product position; select a location in the grout easy processing; mold itself is easy to select the form removal position; select the product easily deformed position

2, must not be in a hurry to increase the amount of the production schedule and blind hardener, otherwise it will greatly reduce the life of the silicone mold.

Prepare - stirred vessel precipitate

· Measurement - Measurement of the second component

· Mixing - mix in a second component

· Exhaust - mixing exhaust

· The casting mold material from the highest point of the model

· Model casting - casting material will spread scratching on the partially cured surface