Silicone rubber for Printing pads to egypt

Datasheet of Silicone rubber for Printing pads    

Model:  900# Silicone rubber for Printing pads    

Appearance: yellow

Viscosity (cs): 15000-18000

Hardness (A): 28-30

Tensile strength (kgf /cm) ≥35

Elongation break: (%)≥400

Retractility (%): ≤0.3

Curing agent mixed rate (%): 2-3

Operate time (min): 30

Curing time (hours): 2-4

Model:  911#

Appearance: yellow, red, green, white

Viscosity(cs): 15000-18000

Hardness(A): 28-30

Tensile strength (kgf/cm) ≥35

Elongation break: (%)≥400

Retractility (%): ≤0.3

Curing agent mixed rate(%): 2-3

Operate time(min): 30

Curing time(hours): 2-4

Model:  912# Silicone rubber for Printing pads    

Appearance: red, green

Viscosity(cs): 15000-18000

Hardness(A): 28-30

Tensile strength (kgf/cm) ≥35

Elongation break: (%)≥400

Retractility (%): ≤0.3

Curing agent mixed rate(%): 2-3

Operate time(min): 30

Curing time(hours): 2-4

Model:  918# Silicone rubber for Printing pads    

Appearance:yellow, red, green, white

Viscosity(cs): 15000-18000

Hardness(A): 28-30

Tensile strength (kgf/cm) ≥40

Elongation break: (%)≥500

Retractility (%): ≤0.3

Curing agent mixed rate(%): 2-3

Operate time(min): 30

Curing time(hours): 2-4

Model:2018# Silicone rubber for Printing pads    

Appearance: yellow, red, green, white

Viscosity (cs): 20000

Hardness (A): 23

Tensile strength (kgf /cm) ≥30

Elongation break: (%)≥350

Retractility (%): ≤0.3

Curing agent mixed rate (%): 2-3

Operate time(min): 30

Curing time (hours): 2-4

Operation instruction for Silicone rubber for Printing pads   

 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 silicon and silicon oil on the basis of customer requirements. Add more silicon oils if a larger area of printed pattern and therefore soft rubber head is needed by the customer. Otherwise, add no or less silicon oil for better hardness. For normal pad printing rubber head, hardness between 15 A°--25A°will be appropriate. If excessive amount of silicon oil is added, the number of printing will be limited by an extremely soft rubber head, and the molecular weight of silicon of however supreme quality will be destroyed by silicon oil, and therefore, the phenomenon of compromised resistance to abrasion, solvent and aging.

3. Admixture amount of curing agent and chemical reaction of silicon: e.g., mix 100g of silicon with 50g of silicon oil, after they are sufficiently and evenly mixed, add curing agent as per 2% of the total weight of silicon and silicon oil, mix again for 2-3 minutes before exhausting. Generally exhausting duration can not exceed 10 minutes; otherwise, the silicon will harden quickly to affect the quality of molding.

4. Admixture amount of curing agent and silicon reaction:

5.1. Added with 1% of curing agent, silicon can still flow within 2.5 hours, mold can be released in 6-8 hours.

5.2. Added with 2% of curing agent, silicon 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, silicon can still flow within 28-30 minutes, mold can be released in 1.5-2 hours

5.4. Added with 4% of curing agent, silicon 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 silicon will condensate too fast for normal usage).

Above is the mixing data for silicon 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!

The information just for reference, any interesting, any questions, pls feel free to contact Taylor Liu:

Tel: + 86-755-89948006 or 86-13430593056

Fax: + 86-755-89948030

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E-mail:hyw(at)szrl(dot)net