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Precision manufacturing. Stronger together.Manufacturing Services & Support

From prototype to production, coordinated manufacturing solutions for your custom parts.

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Solutions

Thermal Technologies

Choose air- or liquid-cooling components around your thermal and mechanical requirements.

Stepped aluminum heat sink with copper contact insert — illustrative concept
Explore Thermal Technologies

Heat Sinks

Liquid Cooling

AI & Data Center Cooling

Manufacturing support for your cold plates, manifolds and cooling assemblies.

Processor cold plates and distribution manifold — illustrative concept
Explore AI Cooling

AI Compute Cooling

Distribution & Assembly

AI Cooling Interfaces
  1. Cold PlateHeat-source interface
  2. ManifoldCoolant distribution
  3. CDU InterfaceConnection requirements
  4. Rack / LoopAssembly integration
Review component fit across your cooling system.

Industry Cooling Solutions

Find components for your power electronics, energy, laser and telecom application.

Machined power module cooling plate — illustrative concept
Explore Industry Cooling

Power Electronics

EV & Energy

Laser & Telecom

Industries

High-Tech & Electronics

Components for your electronic systems.

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Applications & Project Inquiries

Precision & Advanced Systems

Start with your functional and quality requirements.

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Applications & Project Inquiries

Industrial & Energy

Build around your operating environment.

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Applications & Project Inquiries

Materials

From prototype to production, review material performance, manufacturability and cost for your part.

Engineering Plastics

Match your polymer to function, process and environment.

→
ABS — illustrative material conceptABSReview enclosure and molding needs›Polycarbonate (PC) — illustrative material conceptPolycarbonate (PC)Discuss clarity and impact needs›Nylon (PA) — illustrative material conceptNylon (PA)Review moisture and wear conditions›POM / Acetal — illustrative material conceptPOM / AcetalReview fit and sliding features›PEEK — illustrative material conceptPEEKDiscuss operating conditions›PTFE — illustrative material conceptPTFEReview friction and chemical exposure›ULTEM / PEI — illustrative material conceptULTEM / PEIDiscuss thermal and electrical needs›

Elastomers & Specialty Materials

Confirm grade availability and application requirements.

→
Elastomers
Silicone / LSR — illustrative material conceptSilicone / LSRDiscuss flexible component needs›TPU / TPE — illustrative material conceptTPU / TPEReview flexibility and processing›EPDM — illustrative material conceptEPDMReview weathering and chemical exposure.›NBR — illustrative material conceptNBRReview oil and fuel exposure.›FKM — illustrative material conceptFKMReview temperature and chemical exposure.›
Specialty Materials
G10 / FR4 — illustrative material conceptG10 / FR4Review insulation and laminate needs›Composites — illustrative material conceptCompositesReview stiffness, weight and laminate.›Customer-Specified MaterialsConfirm your grade and requirements.›Other Specialty MaterialsDiscuss your application and grade.›
Resources

Design & Engineering

Practical guidance for your part geometry and material decisions.

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Cost & Planning

Prepare your process, budget and sourcing questions.

Explore Planning Topics

Learn & Proof

Build your knowledge before production.

Explore Learning Paths
About Us

About LK MFG

Learn who we are and how we operate.

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Get in Touch

Find our U.S. support team or start a conversation.

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sales@lkmfg.com (945) 409-1013

1750 Briercroft Ct, Suite 204
Carrollton, TX 75006, USA

YOUR GRADE. YOUR CLARITY. YOUR FINISHED FIT.

Polycarbonate (PC) for Your Custom Parts

Your polycarbonate machining or molding review starts with the actual product, color and appearance requirement. Connect impact, temperature, cleaning fluids and mating features before committing stock or tooling.

Quote requirements →
Polycarbonate PC mixed enclosures and stock — illustrative generated component concept
Illustrative component concept
01 · Grade & ColorYour approved product.
02 · Clarity & ImpactYour appearance and use.
03 · Process & FitYour finished geometry.
04 · Records & ApprovalYour acceptance evidence.

Choose PC Around Your Part

4 starting points. Review the full grade and color, not the family name alone.

Other PC Grades ↓

Makrolon 2805 for Your Molding Review

For your clear polycarbonate parts, define visible faces, bosses and final interfaces. A clear resin name alone does not define your finished transparency or impact acceptance.

ManufacturerCovestro
Product referenceMakrolon 2805 · PC resin
Purchasing routeInjection molding resin; not an unidentified CNC sheet
Your reviewGrade, color, appearance and finished fit
Polycarbonate PC deep instrumentation housing — illustrative generated component concept
Illustrative component concept

Compare Flow, Not Overall Performance

The same manufacturer, metric and test conditions. Higher flow is not an overall quality score.

Makrolon Melt Volume-Flow Rate

300°C / 1.2 kg · ISO 1133-1 · cm³/10 min

2405
19
2605
12
2805
9
3105
6

0 ───── 5 ───── 10 ───── 15 ───── 20

01 / Clarity & Appearance

Define color, thickness, scratch limits and visible surfaces.

02 / Actual Exposure

Review load, temperature, UV and cleaning fluids.

03 / Required Evidence

Match grade, color and wall thickness to current records.

Source: Covestro product data. Typical resin references, not design allowables or guaranteed finished-part performance. MVR is not MFR. Read manufacturer data →

Other PC Grades for Your Drawing

7 additional grades, grouped by the requirement you need to review. Supply and suitability are project-specific.

01 / More General-Purpose Options

Makrolon 2605 / 3105

Review viscosity and filling conditions.

02 / Higher-Flow Molding

LEXAN 121R

Review flow length, walls and appearance.

03 / UV-Stabilized Options

LEXAN 143R

Define exposure and appearance limits.

04 / Transparent FR Options

Makrolon 6555

Confirm color, thickness and recognition.

05 / Glass-Fiber Reinforced

Makrolon 9415

10% glass fiber; opaque. Review warpage.

06 / Extrusion & Blow Molding

LEXAN 133R

Confirm resin, section and production route.

Flame classification is grade-, color- and thickness-specific.

Material recognition is not finished-product approval. Makrolon 6485 and 9415 are opaque grades. PC/ABS is a separate blend specification.

Polycarbonate PC transparent plate rod and blank — illustrative generated component concept
Illustrative component concept

CNC Stock Is a Separate Specification

TECANAT natural · Ensinger

For your polycarbonate prototype machining project, specify the actual sheet, rod or tube. Review stock condition, residual stress, clarity and chemical exposure.

Polycarbonate prototyping in machined stock does not establish the performance of a molded production part. A molding-resin datasheet does not identify an unknown sheet.

Confirm your stock product →

Read the Product Name on Your Drawing

Polymer familyPC · polycarbonate. No universal fixed constituent wt.% table applies to every grade.
European purchasing namesMakrolon · LEXAN · TECANAT are commercial product families. Retain manufacturer, full grade, color and product form.
Reinforced productsFillers and additives differ by grade. 9415 lists 10% glass fiber; do not transfer this to other PC products.
SubstitutionNo automatic equivalent. Compare the ordered specification and finished-part evidence before approval.

Match the Route to Your Finished Part

Choose the material form and manufacturing route together.

Polycarbonate PC controller housing and lid — illustrative generated component concept
Illustrative component concept

Injection Molding

Your polycarbonate low volume injection molding review compares tooling, quantity, cosmetic faces and sample acceptance.

Explore injection molding →
Polycarbonate PC counterbored mounting plate — illustrative generated component concept
Illustrative component concept

CNC Machining

Your polycarbonate prototype parts need defined stock, critical fits, machining stress and final surfaces.

Explore cnc machining →
Polycarbonate PC clear tubes and u profile — illustrative generated component concept
Illustrative component concept

Profile Extrusion

Confirm resin, constant section, cut lengths and final dimensional checks.

Explore profile extrusion →

6 Inputs for Your PC Quote

  1. 01CAD + controlled drawing
  2. 02Full grade + color + approved alternatives
  3. 03Process + trial and repeat quantities
  4. 04Temperature + UV + chemical exposure
  5. 05Critical fits + cosmetic requirements
  6. 06Inspection records + delivery needs

Related materials: ABS → · Engineering Plastics →

Answers Before You Specify

Can one PC grade replace another?

Not automatically. Confirm the full grade, color, process and finished-part requirements. Your polycarbonate molding company review should compare the actual product, not just the polymer name. No. Match the exact grade, color and thickness to current recognition records. Approval of a resin does not approve your enclosure.

Is molding resin the same as CNC stock?

No. For your polycarbonate CNC machining project, identify the stock manufacturer and product. Resin and stock purchasing records serve different purposes.

Can machined PC be optically clear?

Polycarbonate polishing can change dimensions and stress. For polycarbonate optical polishing, agree optical faces, haze, light transmission and inspection methods before accepting a finish; no universal optical performance is promised. For your polycarbonate surface finish, mark visible faces, accepted scratches, haze and reference samples. Molded texture and machined surfaces require different acceptance methods.

Why do clear molded parts have streaks?

Review polycarbonate splay against drying, material handling, gas, shear and venting for the actual grade. Follow the supplier processing guidance; a visual symptom alone does not identify one cause.

How should you review UV and chemical exposure?

No. Review sunlight, temperature, duration, color and mechanical load for your actual environment. A UV-stabilized name alone does not establish a service life. Polycarbonate stress cracking depends on the actual chemical, stress, temperature and contact time. Evaluate assembly preload, sharp edges, residual machining stress and cleaning agents together.

What drives your PC quotation?

For a polycarbonate injection molding quote, send CAD, drawing, full grade, color and order quantities. Tooling, unit cost, finishing, inspection and trial versus repeat demand need separate review.

Material references: Covestro · SABIC · Ensinger. Confirm current documents for your exact product and color. Generated concepts are not material certification or customer parts.