Liquid Silicone Rubber Manufacturing -

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Precision Silicone
SOLUTIONS

Specializing in LSR Injection Molding

Slide

Precision Silicone
SOLUTIONS

Specializing in Silicone Extrusion

Liquid Silicone Manufacturing

LIM-US manufactures injection molded and multi component parts from Liquid Silicone Rubber in Healthcare, Energy, and Industrial applications

Company

Lim-US is a Wisconsin based technical manufacturer of precision silicone products, founded and operated by an engineering and operations professional, with a broad commercial background, and over 25 years of experience with silicone elastomers.

We are both an agile and engineering led business that provides best practice silicone solutions adapted for tomorrow’s challenges, developing and producing polymer-based products from concept development, product design and process optimization, to low and high-volume production, post-processing, assembly and logistics.

Data Led, Lean, and Process Driven

Our Philosophy

LIM US is a reliable, service focused, and collaborative resource that develops strong partnerships through providing innovative solutions from our experience and expertise of engineering and manufacturing in silicone injection molding and extrusion markets.

‘We are agile problem solvers that get our customers to market faster and help them create their competitive advantage.’ -Michael O’Hara, Founder

Engineering integrity for critical end use applications

Industries

Healthcare

Industrial

Energy

Automotive

Aerospace

Electronics

Our Services

Technical Capabilities

Prototyping

Fast Turnaround Soft Tooling Options for Testing or Design Verification, Form, Fit & Function, Automation/Pilot Sampling

Micro Injection Molding

15cm^3- 28cm^3 repeatable injection shot volume range (+/- 0.02g/unit) (55t IMM)

Clean Manufacturing

Clean, Bright, White, and Visual Manufacturing Space. Lean Systems / Continuous Improvement focused.

Bridge Production

Launch & Interim production for pre ramping volumes

Validation

IQOQPQ, PPAP. Six Sigma Black Belt, Statistical Regression Techniques (DOE, ANOVA (Normal/Non-Normal), Pearson Correlation)

Multi/Single Component Production

Dispersed or Brush/Dip Adhesion Promoters for Thermoplastic and Steel substrates.

Serial production and fully automated production capabilities.

Molding

Reliable, Repeatable, Robust- SIM (Scientific Injection Molding) Techniques

55t -120t Arburg/Engel IMM’s, Elmet (Flow Controlled) Silicone Dosing/Pump Technology.

2x 20t Transfer LSR/HCR Silicone

2.5” (Dia.) Standard Davis Extruder HCR Silicone

Value Added Services

Assembly

Clean

Packaging

Slitting, Cutting or other

In-House Mold Making

Sodick Sinker & Wire EDM

HURCO CNC Machining Centers

LIM US sources LSR with the world’s main suppliers, including Elkem, Wacker, ShinEtsu and Dow

Engineers and product designers can fully leverage LSR’s broad material properties to create resilient and reliable products.

Silicone Elastomer Solutions

LSR is a viscous liquid and classified as a two-part heat cure, or addition reaction, high-performance thermoset elastomer. Its main differentiating characteristics are excellent compression set, biocompatibility, chemical resistance or inertness, and broad functional stability to service temperatures of 250C (480F).

Weather Resistance

Weathering resistance is offered to the deteriorating effects of sunlight, ozone, oxygen, moisture and other environmental factors. Long term stability is superior to most other elastomers.

Electricals

Insulation resistance and dielectric strengths are typical of good elastomeric insulation. Power factor and dielectric constant are low. Ozone and Corona resistance are excellent. The silicon dioxide ash formed during combustion has displayed insulating qualities that have enabled conductors insulated with silicone rubber to maintain integrity of electrical circuits even under severe fore conditions.

Physical Strength

Stress-Strain properties vary with composition. Generally, silicones offer less resistance to tear and abrasion than organic compounds.

Compression Set

Silicone is superior to most other available elastomers in its resistance to compression set.

“Silicones Drive Innovation”

Body Tolerance

Specifically formulated to be biocompatible, they are resistant to body fluids and have no significant tissue reaction.

Fungus

Properly cured silicone rubber will neither kill nor support the growth of fungus. Most silicone variations do not contain fungicides but also do not provide any nutritional support.

Radiation Resistance

Radiation introduces additional crosslinks causing increased durometer and reduced elongation. The ultimate mode of failure is embrittlement. Silicones have been shown to perform satisfactorily at dosage levels of 5x10^7 – 2x10^8 rads. Improvements in radiation resistance are achievable with adjustments in phenyl concentrations.

Vibration Damping

The ability of silicone rubber to absorb energy over a wide range of frequency and temperature, as well as a virtually constant transmissibility and resonant frequency from -50C (-58F) (to 65C (150F) makes it ideally suited for use in vibration control devices.

Thermal Ablative

Silicone will withstand temperatures to 5000C (9000F) for minutes. During exposure, a hard, tenacious surface char is formed while the portion immediately underneath remains elastomeric. Thermal insulation properties are maintained.

Release

Surface characteristics serve to prevent adhesion of sticky materials. This property is utilized in the manufacture of silicone rubber coated rollers, for example, used to process such products as hot polyethylene and adhesives.

Permeability

Permeability to gases is greater than is exhibited by other polymers. Yet, while being permeable to water vapor, with proper filler selection, liquid water absorption is very low.

Multifunctional Performance

961 Park Drive, Unit A
Lake Geneva, Wisconsin 53147

Thanks for visiting our website. Please feel free to call or text us at:

262 374 4835

You can also email us at:Email: mohara@lim-us.com