Silicone rubber for baby nipples

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Silicone rubber for baby nipples
Posting date : Nov 29, 2010
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Food grade silicone 1,Silicone rubber for baby nipples We have liquid silicone rubber and solid silicone rubber for making baby nipples. Basic model: LIM39XXA/B and SR18XX. 1.1, Liquid silicone rubber for baby nipples 1) Basic model: LIM39XXA/B 2) Product Description SQUARE®Lim39XXA/B is high transparence and high tear strength, 2-part liquid silicone rubber suitable for injection molding processes,catalyzed by platinum. 3) Key Features High transparence High tear strength(≥35N/mm) Good rebound property Excellent thermal and cold stability Low yellowing Outstanding resistance to ageing Meet US FDA CFR 21.Part.177.2600 and EN14350.2 ,the 4.9 test standard of volatile compound and Europe RoHS standard At the temperature of 20℃ and in the condition of air-proof,the shelf life of LIM39XXA/B is 5 days after mixing A and B,the shelf life will decrease with the increasing of the temperature. 4) Application SQUARE®Lim39XXA/B is suitable for making baby nipples etc. 5)Storage:Correctly stored in its original closed container at room temperature (max 27℃). SQUARE®Lim39**A/B has a shelf life of 360 days. The ready to use LIM39**A/B should be kept tightly closed and used up within 7 days. 6) How to use: Ready-to-use mixtures(components A and B)are fed directly to injection molding machine from the original containers by means of a metering end mixing unit (called static mixer). The mixture(at the mixing ratio 1:1) is injected into the heated mould,the mixed silicone rubber will be vulcanized in a few seconds. 7) Packaging SQUARE®Lim39XXA/B is available in 20kgs pails or 200kgs drums. 8) Typical properties Property Standard Unit LIM3920 LIM3930 LIM3940 LIM3950 LIM3960 LIM3970 Appearance transparent transparent transparent transparent transparent transparent Viscosity [mPa.s] 700,000 400,000 600,000 700,000 700,000 800,000 Density DIN53 479A g/cm3 1.08 1.07 1.08 1.10 1.12 1.14 Shore A hardness DIN53 305 ºA 20 30 40 50 60 70 Tensile strength DIN53 504 S2 n/mm2 7.0 5.0 8.5 9.0 9.5 7.0 Tear strength ASTM D624 Die B KN/m 15.0 25.0 30.0 32.0 35.0 28.0 Elongation at break DIN53504 S2 % 800 400 550 450 380 320 Compression set DIN53 517 22hrs at 175℃ % 24.0 25.0 25.0 25.0 25.0 25.0 Linear shrinkage JISK 6301 % 2.4 2.5 2.4 2.4 2.4 2.4 8. Remarks :These figures are for reference only, Please contact us for detail. 1.2, Solid silicone rubber fro baby nipples 1) Basic model: SR18XX 2) Product Description SQUARE®SR18XX is high transparence and high tear strength solid silicone rubber suitable for compression molding processes. 3) Key features High transparence High tear strength High elongation and good rebound property Excellent thermal and cold stability(-60℃-250℃) Low yellowing Outstanding resistance to ageing Meet US FDA CFR 21.Part.177.2600 and EN14350.2,the 4.9 test standard of volatile compound and Europe RoHS standard 4) Application SQUARE®SR18XX is suitable for making baby nipples and diving goggles,etc. 5) Storage: The products should be closed tightly, protected from light and moisture. 6) How to use: mix with peroxide then made into medical pipe in extruding mould 7) Packaging SQUARE®SR18XX is available in 20kgs cartons. 8) Typical properties Property Standard Unit SR1804 SR1805 SR1806 SR1807 Appearance     Transparent Transparent Transparent Transparent Plasticity   10^-5m 180 210 240 260 Density DIN53479A g/cm3 1.08 1.10 1.18 1.22 Shore A Hardness DIN53305 Shore A 40 50 60 70 Tensile Strength DIN53504S2 Mpa 10.0 11.0 8.0 9.0 Elongation at break DIN53504S2 % 680 680 590 600 tear Strength ASTMD624 DieB KN/m 50 50 45 50 Compression Set DIN53517 22hrs 175℃ % 22 24 25 26 Linear Shrinkage rate JISK6301 % 3.4 3.2 3.0 2.8 Cure condition: 170 ℃X10min 9) Remarks: These figures are for reference only, Please contact us for detail.

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