Injection Molding
Tooling and molding for your repeat plastic parts.
YOUR EXACT GRADE. YOUR MATERIAL STATE. YOUR FINISHED FIT.
Other Specialty Materials for Your Custom Parts
Review specialty material machining around your full material product, supplied state and drawing. For custom ceramic parts, MACOR, boron nitride or custom graphite parts, agree stock identity, critical edges, holes, use conditions and required inspection before comparing quotations.
Exact material acceptance, machining, grinding, firing and inspection availability require project confirmation. Supplier product references do not establish LK MFG qualifications or a finished-part guarantee.
Exact ProductKeep producer and full grade.
Material StateRetain stock and firing condition.
Critical GeometryDefine edges, walls and holes.
Your EvidenceAgree material and final checks.
4 Starting Points for Your Specialty Material Review
Alumina & Zirconia
For alumina ceramic machining or zirconia machining, retain the full producer grade, supplied state and required dimensions. Fully fired technical ceramics require a different process review from machinable glass ceramics.
MACOR Glass Ceramic
For MACOR machining, specify the Corning product, stock dimensions, finished geometry, edge condition and required evidence. Its machinability does not make other ceramic grades interchangeable.
Boron Nitride Products
For boron nitride machining, retain full grade, binder or composition, stock form and intended environment. Aremco 502-1600 boron nitride is a specific product, not a designation for every BN material.
Specialty Graphite
For custom graphite parts, identify the complete producer grade, stock form, grain structure, porosity and impregnation when relevant. Agree geometry, cleaning, handling and final evidence.
Review Your Exact Product and Supplied State
Review CoorsTek AD-995 for Your Drawing
For a CoorsTek AD-995 custom parts quote, retain the complete product, stock dimensions, fired state, drawing, critical features and inspection scope. CoorsTek AD-995 alumina is a named producer grade; a nominal purity alone is not its full specification.
| Your decision | What to confirm |
|---|---|
| Material identity | Full producer product, composition, supplied state and lot |
| Stock and process | Actual dimensions, firing stage and agreed machining or grinding scope |
| Acceptance | Controlled drawing, edges, holes, approved sample and required tests |
Confirm the Supplied Condition
Machinable glass ceramic, fully fired ceramic, partially fired alumina and graphite require distinct reviews.
| Your decision | What to confirm |
|---|---|
| Fully Fired or Finished Stock | Retain full grade, producer, supplied condition, actual dimensions and available records. Review grinding, machining, support and edge acceptance for the specific ceramic or graphite product; appearance does not establish machinability. |
| Green or Partially Fired Stock | Agree material identity, process responsibility, firing route, dimensional allowance and final inspection. Ceramic sintering shrinkage allowance must follow the actual product and validated process; no universal percentage is assumed. |
Agree Your Finished Fit
Retain the actual interface and operating environment.
| Your decision | What to confirm |
|---|---|
| Geometry | Holes, walls, radii, locating surfaces and edge breaks |
| Environment | Temperature, atmosphere, fluids, load and electrical or thermal requirements |
| Measurement | Final processing stage, support, critical dimensions and agreed method |
Retain Material and Part Records
Supplier identity and finished-component acceptance serve different purposes.
| Your decision | What to confirm |
|---|---|
| Identity | Producer, full grade, supplied state, stock and lot |
| Drawing | Critical dimensions, holes, edges and inspection stage |
| Function | Approved sample and required material, electrical, thermal or assembly evidence |
Review Specified Zirconia for Your Drawing
Identify the complete zirconia product, composition or stabilization designation, supplied state, producer data and drawing. Agree machining or grinding scope for the actual grade rather than applying alumina or MACOR assumptions.
| Your decision | What to confirm |
|---|---|
| Material identity | Full producer product, composition, supplied state and lot |
| Stock and process | Actual dimensions, firing stage and agreed machining or grinding scope |
| Acceptance | Controlled drawing, edges, holes, approved sample and required tests |
Confirm the Supplied Condition
Machinable glass ceramic, fully fired ceramic, partially fired alumina and graphite require distinct reviews.
| Your decision | What to confirm |
|---|---|
| Fully Fired or Finished Stock | Retain full grade, producer, supplied condition, actual dimensions and available records. Review grinding, machining, support and edge acceptance for the specific ceramic or graphite product; appearance does not establish machinability. |
| Green or Partially Fired Stock | Agree material identity, process responsibility, firing route, dimensional allowance and final inspection. Ceramic sintering shrinkage allowance must follow the actual product and validated process; no universal percentage is assumed. |
Agree Your Finished Fit
Retain the actual interface and operating environment.
| Your decision | What to confirm |
|---|---|
| Geometry | Holes, walls, radii, locating surfaces and edge breaks |
| Environment | Temperature, atmosphere, fluids, load and electrical or thermal requirements |
| Measurement | Final processing stage, support, critical dimensions and agreed method |
Retain Material and Part Records
Supplier identity and finished-component acceptance serve different purposes.
| Your decision | What to confirm |
|---|---|
| Identity | Producer, full grade, supplied state, stock and lot |
| Drawing | Critical dimensions, holes, edges and inspection stage |
| Function | Approved sample and required material, electrical, thermal or assembly evidence |
Review Corning MACOR for Your Drawing
For a MACOR custom parts quote, provide full stock form, dimensions, drawing, edge and hole requirements, quantities and intended exposure. Corning identifies MACOR as a machinable glass ceramic; it is not a generic fully fired alumina.
| Your decision | What to confirm |
|---|---|
| Material identity | Full producer product, composition, supplied state and lot |
| Stock and process | Actual dimensions, firing stage and agreed machining or grinding scope |
| Acceptance | Controlled drawing, edges, holes, approved sample and required tests |
Confirm the Supplied Condition
Machinable glass ceramic, fully fired ceramic, partially fired alumina and graphite require distinct reviews.
| Your decision | What to confirm |
|---|---|
| Fully Fired or Finished Stock | Retain full grade, producer, supplied condition, actual dimensions and available records. Review grinding, machining, support and edge acceptance for the specific ceramic or graphite product; appearance does not establish machinability. |
| Green or Partially Fired Stock | Agree material identity, process responsibility, firing route, dimensional allowance and final inspection. Ceramic sintering shrinkage allowance must follow the actual product and validated process; no universal percentage is assumed. |
Agree Your Finished Fit
Retain the actual interface and operating environment.
| Your decision | What to confirm |
|---|---|
| Geometry | Holes, walls, radii, locating surfaces and edge breaks |
| Environment | Temperature, atmosphere, fluids, load and electrical or thermal requirements |
| Measurement | Final processing stage, support, critical dimensions and agreed method |
Retain Material and Part Records
Supplier identity and finished-component acceptance serve different purposes.
| Your decision | What to confirm |
|---|---|
| Identity | Producer, full grade, supplied state, stock and lot |
| Drawing | Critical dimensions, holes, edges and inspection stage |
| Function | Approved sample and required material, electrical, thermal or assembly evidence |
Review Aremco 502-1400-BF for Your Drawing
For an Aremco 502-1400-BF custom parts quote, identify the bisque-fired alumina product and agree the full processing route, any subsequent firing, dimensional change and final inspection. This grade is alumina, not boron nitride.
| Your decision | What to confirm |
|---|---|
| Material identity | Full producer product, composition, supplied state and lot |
| Stock and process | Actual dimensions, firing stage and agreed machining or grinding scope |
| Acceptance | Controlled drawing, edges, holes, approved sample and required tests |
Confirm the Supplied Condition
Machinable glass ceramic, fully fired ceramic, partially fired alumina and graphite require distinct reviews.
| Your decision | What to confirm |
|---|---|
| Fully Fired or Finished Stock | Retain full grade, producer, supplied condition, actual dimensions and available records. Review grinding, machining, support and edge acceptance for the specific ceramic or graphite product; appearance does not establish machinability. |
| Green or Partially Fired Stock | Agree material identity, process responsibility, firing route, dimensional allowance and final inspection. Ceramic sintering shrinkage allowance must follow the actual product and validated process; no universal percentage is assumed. |
Agree Your Finished Fit
Retain the actual interface and operating environment.
| Your decision | What to confirm |
|---|---|
| Geometry | Holes, walls, radii, locating surfaces and edge breaks |
| Environment | Temperature, atmosphere, fluids, load and electrical or thermal requirements |
| Measurement | Final processing stage, support, critical dimensions and agreed method |
Retain Material and Part Records
Supplier identity and finished-component acceptance serve different purposes.
| Your decision | What to confirm |
|---|---|
| Identity | Producer, full grade, supplied state, stock and lot |
| Drawing | Critical dimensions, holes, edges and inspection stage |
| Function | Approved sample and required material, electrical, thermal or assembly evidence |
Review Aremco 502-1600 for Your Drawing
For an Aremco 502-1600 custom parts quote, retain the boron nitride product identity, current supplier data, stock dimensions, atmosphere, media and finished geometry. Do not transfer another ceramic product performance table to it.
| Your decision | What to confirm |
|---|---|
| Material identity | Full producer product, composition, supplied state and lot |
| Stock and process | Actual dimensions, firing stage and agreed machining or grinding scope |
| Acceptance | Controlled drawing, edges, holes, approved sample and required tests |
Confirm the Supplied Condition
Machinable glass ceramic, fully fired ceramic, partially fired alumina and graphite require distinct reviews.
| Your decision | What to confirm |
|---|---|
| Fully Fired or Finished Stock | Retain full grade, producer, supplied condition, actual dimensions and available records. Review grinding, machining, support and edge acceptance for the specific ceramic or graphite product; appearance does not establish machinability. |
| Green or Partially Fired Stock | Agree material identity, process responsibility, firing route, dimensional allowance and final inspection. Ceramic sintering shrinkage allowance must follow the actual product and validated process; no universal percentage is assumed. |
Agree Your Finished Fit
Retain the actual interface and operating environment.
| Your decision | What to confirm |
|---|---|
| Geometry | Holes, walls, radii, locating surfaces and edge breaks |
| Environment | Temperature, atmosphere, fluids, load and electrical or thermal requirements |
| Measurement | Final processing stage, support, critical dimensions and agreed method |
Retain Material and Part Records
Supplier identity and finished-component acceptance serve different purposes.
| Your decision | What to confirm |
|---|---|
| Identity | Producer, full grade, supplied state, stock and lot |
| Drawing | Critical dimensions, holes, edges and inspection stage |
| Function | Approved sample and required material, electrical, thermal or assembly evidence |
Review Specified Graphite for Your Drawing
Retain the exact graphite producer and grade, manufacturing form, grain structure, porosity and any impregnation. Agree the actual blank, cleaning requirements and dimensional or functional acceptance before process planning.
| Your decision | What to confirm |
|---|---|
| Material identity | Full producer product, composition, supplied state and lot |
| Stock and process | Actual dimensions, firing stage and agreed machining or grinding scope |
| Acceptance | Controlled drawing, edges, holes, approved sample and required tests |
Confirm the Supplied Condition
Machinable glass ceramic, fully fired ceramic, partially fired alumina and graphite require distinct reviews.
| Your decision | What to confirm |
|---|---|
| Fully Fired or Finished Stock | Retain full grade, producer, supplied condition, actual dimensions and available records. Review grinding, machining, support and edge acceptance for the specific ceramic or graphite product; appearance does not establish machinability. |
| Green or Partially Fired Stock | Agree material identity, process responsibility, firing route, dimensional allowance and final inspection. Ceramic sintering shrinkage allowance must follow the actual product and validated process; no universal percentage is assumed. |
Agree Your Finished Fit
Retain the actual interface and operating environment.
| Your decision | What to confirm |
|---|---|
| Geometry | Holes, walls, radii, locating surfaces and edge breaks |
| Environment | Temperature, atmosphere, fluids, load and electrical or thermal requirements |
| Measurement | Final processing stage, support, critical dimensions and agreed method |
Retain Material and Part Records
Supplier identity and finished-component acceptance serve different purposes.
| Your decision | What to confirm |
|---|---|
| Identity | Producer, full grade, supplied state, stock and lot |
| Drawing | Critical dimensions, holes, edges and inspection stage |
| Function | Approved sample and required material, electrical, thermal or assembly evidence |
Compare One Supplier Property on the Same Basis
CoorsTek typical alumina density, g/cm³ · Manufacturer Alumina Typical Material Properties table
Typical Density (g/cm³)
Typical supplier density values for the named products, not a machining tolerance, application approval or performance ranking. The web table does not state a measurement temperature; no condition is invented. Confirm current product data and the properties required for your part.
Supplier alumina table →2 Supplied States. Different Process Reviews.
Fully Fired or Finished Stock
Retain full grade, producer, supplied condition, actual dimensions and available records. Review grinding, machining, support and edge acceptance for the specific ceramic or graphite product; appearance does not establish machinability.
Green or Partially Fired Stock
Agree material identity, process responsibility, firing route, dimensional allowance and final inspection. Ceramic sintering shrinkage allowance must follow the actual product and validated process; no universal percentage is assumed.
Resolve 6 Specialty Material Part Risks
Material state & identity for Your Finished Part
Keep the exact grade and green, bisque-fired or fully fired state. Aremco 502-1400-BF is bisque-fired alumina; 502-1600 is boron nitride. Review the actual process route and finished requirements separately.
Edges & chipping for Your Finished Part
For ceramic edge chipping inspection, define permitted location, size, extent and inspection method on the controlled drawing. Agree edge breaks and approved samples where needed; a general smooth-edge statement is incomplete.
Holes, walls & support for Your Finished Part
Specify hole diameter, position, wall thickness, radii and mating features. Review access, support and brittle-feature risk for the supplied grade and state, then agree final dimensional inspection.
Firing & dimensions for Your Finished Part
Separate pre-firing geometry from finished dimensions. Agree the supplier/process-specific ceramic sintering shrinkage allowance, reference axes, inspection stage and acceptance; no generic shrinkage factor is a finished-part guarantee.
Media & environment for Your Finished Part
Provide actual temperature, atmosphere, fluids, electrical or thermal needs and load. Keep product-specific evidence and test conditions; a supplier maximum temperature or generic material family does not approve the application.
Material & part evidence for Your Finished Part
Retain producer, full grade, supplied state, lot and current technical information. Keep material identity, dimensions, edge acceptance and any specified functional or regulated requirements separate.
Match the Route to Your Material and State
Fired Ceramic Review
Agree actual grade, fired state, grinding or machining scope, critical surfaces and edge acceptance.
Review requirements ↓
Machinable Material Review
Review the exact glass ceramic, BN or graphite product, geometry, handling and inspection.
Review requirements ↓
Prototype and Fit Review
Agree what the sample verifies in material, state, geometry, environment and required tests.
Review requirements →Manufacturing and firing availability require project confirmation. Supplier product data do not establish company qualifications.
Agree 3 Checks for Your Receiving Team
| Your check | Evidence to agree |
|---|---|
| 1 | Full producer grade, material state, stock dimensions, lot and current material evidence. |
| 2 | Controlled drawing, critical holes, wall and edge requirements, processing stage and measuring method. |
| 3 | Agreed sample, dimensional and edge records, plus any required material or functional test evidence. |
6 Inputs for Your Specialty Material Quote
- 01CAD + controlled drawing
- 02Full producer + grade + material state
- 03Actual stock + quantity + process stage
- 04Critical dimensions + holes + walls
- 05Edges + media + atmosphere + load
- 06Material records + required tests + delivery
Exact product · Stock · Processing stage · Geometry · Quantity · Inspection · Delivery
Answers Before You Specify
What information is required for a specialty material machining quote?
Provide CAD and controlled drawing, exact producer grade, material state, actual stock, quantity, critical dimensions, edges and holes, use environment and required evidence. A ceramic machining quote also needs the agreed processing and final inspection stages.
Can fully fired alumina be machined like MACOR?
Do not assume the same route. MACOR is a machinable glass ceramic; fully fired alumina needs its own grade-specific machining or grinding review. Confirm material state, geometry and available process before planning the part.
How should ceramic edge chipping be specified?
Define the permitted chip size, extent and location, edge-break geometry, inspection method and final stage on the controlled drawing. Agree samples where useful and keep edge acceptance separate from dimensional fit.
Is alumina purity a complete material grade?
No. Retain producer and full product, supplied state, composition and relevant physical, electrical or thermal data. Similar nominal purity does not approve automatic substitution or establish identical processing.
What stock information is needed for custom graphite parts?
Provide full producer grade, stock dimensions and form, grain structure, porosity, any impregnation, condition and available records. Agree cleaning, handling and required dimensional or functional evidence.
Can a specialty material be accepted without a datasheet?
Identify missing information and agree suitable producer or material evidence before acceptance. A family name, color or photograph alone is insufficient to confirm the full grade or application requirements.
Retain Your Full Product and Material State
| Reference | What it does and does not identify |
|---|---|
| CoorsTek AD-995 / specified zirconia | Named alumina grade or complete zirconia product; retain producer data, supplied state and finished acceptance. |
| Corning MACOR | Machinable glass ceramic; not a generic equivalent to fully fired alumina. |
| Aremco 502-1400-BF | Bisque-fired 96% alumina in the supplier table; agree any subsequent firing and final dimensional scope. |
| Aremco 502-1600 | 99% boron nitride in the supplier table; retain the exact product and environment requirements. |
| Specialty graphite | Full producer grade, structure and any impregnation; generic black appearance does not identify it. |
Retain current supplier evidence rather than assuming a purity, family name or color approves a substitute.
References: CoorsTek, Aremco, Corning and Toyo Tanso primary product information. Generated concepts illustrate geometry, not actual customer parts, grade identification or company manufacturing records.
