We are manufacturer specializing in silicone,RTV-2 silicon,liquid silicone,pad printing silicone,high temperature silicon,mold making silicone,RTV silicone rubber,RTV silicone ,mold silicone,silicone rubber, silicone mold,RTV-2 silicone rubber, HTV silicone rubber ,trademark silicone rubber,injection moulding silicone rubber,lead-zinc alloy silicone,pad printing silicon,spin casting silicone,RTV silicon,shoe mold rubber ,encapsulants and potting compound,hot stamping silicone plate, special silicon for shoe soles silicone,hot stamping silicone roller,molding silicone rubber, gross rubber,high temperature silicone,manual molding,baby nipple silicone rubber,shoe soles silicone rubber,molding silicon,Lifecasting,shoe soles silicone, silicone products ,food grade silicone rubber,etc.
Contact person: Amty
Mobile phone: 15013613707
Phone: 0755-89948061
Fax: 0755-89948030
E-mail:2355542580@qq.com
silicone rubber is two part liquid component silicone rubber crosslinking vulcanizted by polysiloxane based on poly vinyl and hydrogen polysiloxane under Platinum catalysis
This product has the performance of silicone rubber, vulcanization when will not the low molecular of widerange harmful radioactive by products, little shrinkage and deep curing. Can be used for a long time even the working temperature reaching 250 °C,and the performance will not be affected, the hardness of glue can be adjusted in a wide range, has high intensity and tear resistant and excellent performance of electrical insulating properties,
and can be widely used in electrical components insulation potting, coating and high-grade silicon rubber products. This product is nontoxic, nonpolluting.
Advantages
1 two part liquid component, this kind of silicone rubber has no thickness restriction, need to be heated for curing.
2 can be worked at -49 to250°C
3 was elastomer which can be made as soft as jelly or as hard as wood.
4 Good flame resistance
5 high strength and dielectric performance
Usage way
supplied as two part liquid component kits comprised of base/curing agent, mixed in a 1/1 ratio by weight or volume, pouring the compound before the foam automatically dispersed. For the high viscosity kind compound, vacuum facility can be used to defoam, the time of curing can be adjusted to fit your specific demands.
1. HYE can be divided into A, B two components, mixing A and B according to 1/1 by weight or volume when using,
2. for slow curing and low viscosity rubber, perfusing mixed A, B components after bubbles automatically vanishing; for fast curing and high viscosity rubber, should perfusion after pumping take off the bubbles by vacuum in the mixture
3, during storage and use procession, HYE should be avoid contact with nitrogen, phosphorus, sulfur, tin, and so inorganic substance, otherwise the catalytic agent of HYE will lose efficacy and don’t vulcanize.
4, the operation time of HYE is about 1 hour (25 ° C), the curing time of the mixed compounds will be more faster when the storage environment temperature is more higher, thus the operating time will be more shorter.
Application
1, electronic components and insulation potting material of high voltage electrical products.
2, the material of the rapid forming soft mould.
3, the material of the rubber roller for printing industry and other special rubber roller
Whatever you have any request or questions, pls don't hesitate to contact with me or call me.(hynb@szrl.net 86-18938867606)
Operation instruction for printing pad silicone
1. Wash and clean molds with detergents, dry the molds and use an air gun if necessary, and apply a film of mold release.
2. Determine the normal proportion of pad printing silicone and silicone oil on the basis of customer requirements. Add more silicone oils if a larger area of printed pattern and therefore soft rubber head is needed by the customer. Otherwise, add no or less silicone oil for better hardness. For normal pad printing rubber head, hardness between 15 A°--25A°will be appropriate. If excessive amount of silicone oil is added, the number of printing will be limited by an extremely soft rubber head, and the molecular weight of silicone of however supreme quality will be destroyed by silicone oil, and therefore, the phenomenon of compromised resistance to abrasion, solvent and aging.
3. The normal proportion is as follows: 100g silicone admixed with 30g silicone oil for a hardness of 20 A° will be suitable for pad printing for alloy toy cars and products with small patterns and contact area. If larger pressure contact surface or soft rubber head is required, the silicone and silicone oil proportion can be adjusted to 100:50, 100:80 and so on. Remember, the more silicone oil is added, the softer the rubber head will be, and the number of pad printing, resistance to abrasion and solvent will be undermined, and hence, heightened cost and more material waste.
4. Admixture amount of curing agent and chemical reaction of silicone: e.g., mix 100g of silicone with 50g of silicone oil, after they are sufficiently and evenly mixed, add curing agent as per 2% of the total weight of silicone and silicone oil, mix again for 2-3 minutes before exhausting. Generally exhausting duration can not exceed 10 minutes; otherwise, the silicone will harden quickly to affect the quality of molding.
5. Admixture amount of curing agent and silicone reaction:
5.1． Added with 1% of curing agent, silicone can still flow within 2.5 hours, mold can be released in 6-8 hours.
5.2． Added with 2% of curing agent, silicone can still flow within 50 minutes to 1 hour, mold can be released in 2-3 hours.
5.3． Added with 3% of curing agent, silicone can still flow within 28-30 minutes, mold can be released in 1.5-2 hours
5.4． Added with 4% of curing agent, silicone can still flow within 10-15 minutes, mold can be released in 1-1.5 hours
5.5． Curing agent reaction rate is related with weather and temperature. Under 25 degree, they can be added according to the instruction or at double amount in winter or under subzero temperature.
(Note: curing agent can not be added above the 4% maximum level and the normal proportion is 2%. If more than 4% is applied, the silicone will condensate too fast for normal usage).
Above is the mixing data for silicone and curing agent, the precise result of hundreds of times of our experiments. Provided that you arrange production according to our instruction, you are sure to manufacture first class products and maximize your profit – this is not only the need of, but also our responsibility for and a satisfactory answer to our customers. We may not be the first, but we will try to be the best. The customers need is what we pursue !
Any further imformation requried,pls feel free to contact Amty
TEL: 086-018938867606
FAX: 086-755-89948030