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Liquid Silicone Rubber | LSR Materials

Liquid Silicone Rubber is a  two-part platinum-cured silicone, which is a high-purity and non-toxic materials with lower compression set, lower outgassing, wide working temperature, highly tensile strength and highly tear resistance.
Injection Molding of Liquid Silicone Rubber, as one kind of thermosetting material, which needs intensive distributive mixing and needle & shut-off valves in aim to maintain LSR materials at a low temperature before it injected into the heated cavities & chambers for vulcanization. LSR Injection Molding mainly suit to produce high-quality and precision molded liquid silicone parts at high volume. More liquid silicone rubber molded information, please surf: LSR Molding Types
Liquid Silicone Rubber consist of glue A and glue B, which are controlled to be 1:1 ratio dosing device, and fully mixed by a static mixes and then injected into injection tubes. Liquid Silicone Rubber & LSR, as a transparent or translucent liquid silicone, which can be pigmented to gain any color requirements through controllers.
Liquid Silicone Rubber Properties ​​​​​​​

Liquid Silicone Rubber Suppliers--LSR Material Datasheet and Certifications

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Type Material Service Molding Process Property
LSR(Medical) Silopren LSR 2040 LSR Injection Molding Injection Molded Data Sheet
LSR(Medical) Silopren LSR 2742 LSR Injection Molding Injection Molded Data Sheet
LSR(Optical) Dow Corning MS-1002 LSR Injection Molding Injection Molded Data Sheet
LSR(Fluorosilicone) Silastic FL 60-9201 LSR Injection Molding Injection Molded Data Sheet
LSR(LED) Lumisil 740/770 LSR Injection Molding Injection Molded Data Sheet
LSR Silpuran 6000/20 A/B LSR Injection Molding Injection Molded Data Sheet
LSR Elastosil 3003/20 A/B LSR Injection Molding Injection Molded Data Sheet
LSR Elastosil 3003/30 A/B LSR Injection Molding Injection Molded Data Sheet
LSR Elastosil 3003/40 A/B LSR Injection Molding Injection Molded Data Sheet
LSR Elastosil 3003/50 A/B LSR Injection Molding Injection Molded Data Sheet
LSR Elastosil 3003/60 A/B LSR Injection Molding Injection Molded Data Sheet
LSR Elastosil 3003/70 A/B LSR Injection Molding Injection Molded Data Sheet
LSR Elastosil 3003/80 A/B LSR Injection Molding Injection Molded Data Sheet
LSR Elastosil 3038/50 A/B LSR Injection Molding Injection Molded Data Sheet
LSR LSR 2615 A/B LSR Injection Molding Injection Molded Data Sheet
LSR Dow Corning C6-235 LSR Injection Molding Injection Molded Data Sheet
LSR Dow Corning C6-265 LSR Injection Molding Injection Molded Data Sheet
TPE/TPV Santoprene 111-45 Injection Molding Injection Molded Data Sheet
TPE/TPV Santoprene 251-70 Injection Molding Injection Molded Data Sheet
TPE/TPV Santoprene 101-64 Injection Molding Injection Molded Data Sheet
Digital Photopolymer Digital Clear/Translucent 3D Printing Polyjet Data Sheet
Digital Photopolymer Digital White 3D Printing Polyjet Data Sheet
Digital Photopolymer Digital Black 3D Printing Polyjet Data Sheet
LSR TBL-8280 LSR Injection Molding Injection Molded Data Sheet
LSR 6250-40YH(TP) LSR Injection Molding Injection Molded Data Sheet
LSR GA2820-70 LSR Injection Molding Injection Molded Data Sheet
 
Liquid Silicone Rubber Properties Uncured - LR3003/40 AB
Liquid Silicone Rubber Mechanical Properties
Liquid Silicone Rubber Mechanical Properties - LR3003/40 AB Cured

Liquid Silicone Rubber Molding

Liquid Silicone Rubber for Mold Making

LSR Injection Molding of Liquid Silicone Rubber

  • Quality Stability:  Stable LSR product's sizes and designs for each batch, suit to manufacturing repeatability.
  • Short Cycle Time: About 15 seconds.
  • High Precision: Mini parting line, sizes tolerance can less +/- 0.02mm, especially for 2 shot & overmolded production.
  • Flashless Technology: No or less elastomer silicone rubber burrs.
  • Direct Injection: No or less waste.
  • Safest Manufacturing Process: Platinum cured silicone, medical & food  FDA grade silicone molded production in clean room.
  • Automated Manufacturing Systems: work like plastic injection molded by mechanical arm and assembly line.
  • Automatic Demolded: Automated Ejection.
Properties & Characteristics of Liquid Silicone Rubber
  • Safest Elastomer: Liquid Silicone Rubber & LSR can meet all food grade and medical requirements or certifications. Good food, water and medical contact, safe applications. LSR is an inorganic nature, which is clean, plasticizer-free, tasteless, and is water proof, can resist oxidation and some chemical materials like acids and alkali. Liquid silicone rubber also resists to bacteria growth, which will not stain or corrode other materials and also burns to form water vapor and carbon dioxide, not halogens, not toxins etc. LSR products also can be sterilized by steam antoclaving, ethylene oxid, gamma, e-beam etc. 
  • Biocompatibility: Liquid silicone rubber has demonstrated superior compability with human tissue and body fluids. LSR can meet all required approvals like UPS Class VI, BfR XV, FDA 21 CFR 177.2600 etc.
  • Excellent Electrical Insulation: The presence of methyl-group in liquid silicone rubber make LSR suitable for electrical surface insulations. Insulating effects is better than HCR & solid silicone in extremely low or high temperature.
  • Mechanical Properties: Lower compression set, excellent pliability & flexibility, good elongation, high tear and tensile strength. Solid silicone tear resistance and elongation can't up to liquid silicone rubber materials standard.
  • LSR Durometer & Hardness Range: 5 Shore A ~ 80 Shore A.
  • LSR Temperature Range: -60°C ~ 250°C
  • Chemical Resistance: Like solid silicone & HCR, LSR also resists water, oxidation and common acids and alkali, and do not have fuels and mineral oil resistance. When touch fuels or mineral oils, LSR molded parts will swell. Fluoro liquid silicone rubber is noted for its good resistance to organic solvents and petroleum based fluid. Common fluoro liquid silicone rubber materials hardness is 50 Shore A ~ 70 Shore A.
  • Transparency: Natural transparent & translucent liquid silicone, can up to optical grade silicone, the best hardness is about 70 Shore A.
  • Pigmentation: Natural translucent liquid silicone can be mixed & pigmented to reach desired-color or colorful molded products.
  • Durable: LSR material can withstand extreme high and low temperatures,which makes them an excellent choice for components under the hood of cars and in close proximity to engines.
Liquid Silicone Rubber Uses

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