artificial cultured stone veneer silicone rubber mold making methods and features!

    artificial cultured stone veneer the reason why more people are concerned about more natural culture stone, one of the reasons is because the color of the artificial culture stone Manufactured Stone Veneer colorful, but if the mold is not handled properly, it will affect the colors of culture stone.
    Generally, artificial culture stone mold plastic and silicone rubber to make molds, plastic molds for the early years of use, it has a relatively low cost advantage of, but the plastic mold is generally not enough fine, the color is more difficult on the go, pigments absorb low , so often there will be "painted face". In addition, the plastic mold when the mold production due to the high temperature melt molding, high energy consumption will smell pollution of the environment so it could not pass the EPA the EIA this off.
    
artificial cultured stone veneer mold silicone varieties developed in accordance with the special requirements of the production of culture stone. High, medium and low-end of its sub-six varieties. Culture stone mold silicone rubber has the same general resin mold silicone heat because of the particularity of the cultural production of stone materials, requirements, resistance to expansion as well as different hardness, acid and resistance to tearing, so as to adapt to the culture The stone mold special requirements proposal must not be mixed.
    In recent years, artificial cultured stone factory to produce culture stone mold silicone rubber, molding simple high yield, and the Silastic culture stone mold texture and delicate pigment absorption rate is higher, so the general large-scale artificial culture stone manufacturers use silicone rubber mold .
    Mold Silicone operation:
    1, silica and a curing agent was stirred uniformly, the appearance of silicone molds is flowing liquid, the A component is a silica gel, the B component is a curing agent, for example: 100 g of silica gel was added 2 g of the curing agent (Note: silica gel with a curing agent must To stir, did not stir, the mold will affect the life of the silicone mold curing dry and uneven situation and the number of molds from even cause mold scrapped.
    2, vacuum row of bubbles processing: silicone curing agent after mixing evenly vacuum row of bubbles aspects vacuum of time should not be too long, not more than 10 minutes, or silicone cured to produce a cross-linking reaction, can not be brushing or perfusion, resulting in material waste.
    3, brushing procedure: row of bubbles silica: brushing or perfusion fell on the mother die (in the brush mode or perfusion former master mold release agent or release agent) the brush mode must be uniform, sticky layer of gauze or a glass fiber cloth after 30 minutes to increase the strength of the mold and the tension during the second priming and then paste a layer of gauze or a glass fiber cloth, and then subjected to silica gel brushing After this treatment out of the mold, having life and turning model number, long service life, cost savings, and improve efficiency.
    4, the general approach of the outer mold production of the mold is surrounded by a plastic sheet or plank enclosed, one is using the plaster mold box filled can is used, another outer mold resin brushing brushing one layer resin coating layer of glass fiber cloth and then brushing then paste repeated two or three can be completed outside the mold.
    5, the ratio of silica gel (silica gel, silicon) with a curing agent to reflect the situation: It is recommended that the amount of curing agent to be added is not more than 5%, the greater the proportion of curing agent to be added, the faster the curing time, the mold is more brittle, and short service life. The amount of added silicone oil molding better attention to the silicone oil should not be excessive (5% -10%), or affect the tensile and hardness of the silicone mold can also be based on product and process requirements.
Artificial cultured Manufactured Stone Veneer silicone mold features:
    1, good fluidity, good operating
    2, stretch, pull good tensile tear.
    3, moderate hardness, good mold release, no deformation.
    Its production of artificial culture stone:
    1, the original stone samples directly molds from the pouring, texture, color like heaven, uniform color, and the deployment of color based on the architectural design requirements.
    2, low water absorption (17,2%), can be directly used for the exterior walls.
    3 fold intensity up to 3,4 MPa, durable easy to damage, especially the surface strength of up to 12,8 Mpa, dense wear-resistant, not powder.
    4, the shrinkage rate is low (less than 0,5 mm / m) the cracking phenomenon does not appear.
    5, freeze-thaw resistance, -20 ℃ freezing and thawing 15 times up to 10,7 MPa compressive strength is still fully able to cope with the North and the South to a variety of complex outdoor environment.
    6 low bulk density, bulk density less than natural stone half greatly reduce wall load. 7, excluding radioactive substances, environmental radiation.