Price Of Liquid Silicone Rubber Liquid Silicone Rubber Make Plaster Gypsum Mold Silicone Rubber

Product Description
Condensation tin cure molding silicone rubber, Tin-based silicone, also called condensation-cure silicone, are two-component materials which cure at room temperature (RTV) to flexible, high tear-strength rubbers. Tin cured silicone can be poured onto models or they can be made brush-able by adding a Thixotropic additive. They are ideal for molds where easy release or high temperature resistance is required.
Condensation Cure Mold Making RTV2 Silicone Rubbers can be poured or brush onto products for casting polyurethane,epoxy, polyester resin, gypsum/plaster, cement, waxes, low melt alloys/metals, etc.
• MiddleShore A hardness (approx. 25)
• Excellent tear strength
•Little rate of deformation and shrinkage
•Very high elongation and flexibility
• High temperature resist,high tear resist If mix 0.5%-1% ratio of RTV2 silicone Antioxidant agent into silicone rubber, it can great increase using times about 30%-100%, and casting resins resist, particularly polyesters.
Thickening agent for silicone rubber for vertical surface application(making brush-on molds)
Porous surfaces, such as wood, should be dried and sealed. Also applying a release agent, such as petroleum jelly will aid in easy release of a silicone mold. Because silicone can sometimes bond to surfaces which contain silica, such as glass, cements and natural stone; it is recommended to do a spot test for possible adhesion.
Typical general characteristics
Inspection Method
Value
Product data(uncured)
color
White
Viscosity, dynamic at 23℃ , after stirring
DIN EN ISO 3219
20000±2000 mPa.s
Density at 23℃
1.08 g/cm³
Product data (catalyzed with 2-4 wt % Catalyst Tin-4)
Viscosity at 23℃
ISO 3219
17000±2000mPa.s
Product data (cured)
Density at 23℃ in water
ISO 2781
1.08 g/cm³
Hardness Shore A
ISO 868
25±2
Tensile strength
ISO 37
>3.5 MPa
Elongation at break
ISO 37
>350%
Tear strength
ASTM D 624 T
>25 N/mm
Tear strength
ASTM D 624 B
>45 N/mm
Linear shrinkage
<0.3%
This material can readily accept pigments.Stirring individual components before use is recommended. Make sure to weigh and measure accurately. Close containers tightly after use. Products should be stored in their original, sealed containers in an environment that does not exceed 90℉. Under these conditions, the product will achieve the expected shelf life.
The following procedure is an example of a 100:3mix ratio addition cure product. Please refer to the product’s technical sheet for mix ratio information:
Mixing: Charge 100kgby weight of “Part A” and 3kgby weight of “Part B” into a clean, compatible metal or plastic container. The volume of the container should be 3-4 times the volume of the material to be mixed. This allows for expansion of the siloxane material as it de-gasses.
Mix thoroughly by hand or with mixing equipment while minimizing air entrapment until a homogeneous mixture is obtained. This will occur when the material takes on a uniform color with no visible striations. Scrape the sides and bottom of the container thoroughly several times while mixing. once mixing is complete it is recommended that the material be de-aired 2-3 times by intermittent evacuation for a few minutes to minimize any imperfections due to bubbles in the cured material. Typically after releasing the vacuum 2-3 times the mass will collapse on itself at which time the vacuum should be left on only 2-4 minutes longer.
The 'Best use before end' date of each batch is shown on the product label. Storage beyond the date specified on the label doesnot necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.
Silicone base is available in 1kg/5kg/20kg/25kg/200kg plastic/iron drum.Curing Agent is available in 0.25kg,1kg,5kg and 25kg plastic/iron drum.Vacuum bag can be usedaccording to users demand.
Avoid contact with mucous membranes and eyes. Best method of cleanup is by wiping with disposable paper towels and washing with waterless hand cleaner, then soap and water. If solvents must be used, denatured ethyl alcohol is best, but should be handled with respect for health and flammability hazards.
The information and recommendations in this publication are to the best of our knowledge reliable. However nothing herein is to be construed as a warranty or representation. Users should make their own tests to determine the applicability of such information or the suitability of any products for their own particular purposes. Statements concerning the use of the products described herein are not to be construed as recommending the infringement of any patent and no liability for infringement arising out of any such use is to be assumed.More Product
Company Information
Established in 1999, Dongguan Rongxin Silicone Technology Co.,Ltd is a manufacturer and trader specialized in polymer material, development and production of silicone rubber. We are located in Tangxia dongguan, with convenient transportation access. And we have set up an office in 2012, Shenzhen Rongxingda Polymer Material Co.,Ltd. All of our products comply with international quality standards and are greatly appreciated in variety of different markets through out the world.If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationship with new clients around the world in the near future.Certifications
Our well-equipped facilities and excellent quality control throughout all stages of production enables us to guarantee total customer satisfaction.We have pass a lot of certifications. Such as FDA, RoHs, MSDS, ISO and so on. If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.Packaging & Shipping