Injection Molding
Tooling and molding for your repeat plastic parts.
YOUR MATERIAL. YOUR ROUTE. YOUR FINISHED FIT.
Engineering Plastics for Your Custom Parts
Compare engineering plastic parts around heat, wear, clarity and assembly fit. Confirm the exact grade, product form and inspection state before production.
Start with your drawing, quantities and working conditions.
Grade & FormIdentify the actual product.
Exposure & LoadDefine your working conditions.
Finished FitReview your mating features.
Records & ApprovalAgree the evidence you need.
Choose Around Your Part
Select the material family, then review the product and purchasing form.
ABS: Review Your Function First
For your housings and cosmetic surfaces. Review appearance, impact and stress around fasteners.
| Your reference | What to confirm |
|---|---|
| Material family | ABS / acrylonitrile butadiene styrene |
| Your starting point | Stock or molding resin; identify the manufacturer product. |
| Your decision | Exact product, route and finished fit |
ABS: Confirm the Actual Product
Stock or molding resin; identify the manufacturer product.
| Your reference | What to confirm |
|---|---|
| Stock product | Manufacturer, product name, color and lot |
| Molding resin | Full grade, color and controlled processing route |
| Your approval | No automatic substitutions; record approved alternatives |
ABS: Define the Actual Exposure
Review appearance, impact and stress around fasteners.
| Your reference | What to confirm |
|---|---|
| Heat and time | Sustained and peak temperature with load |
| Media and contact | Chemical, concentration, stress and duration |
| Dimensions | Humidity, temperature, datums and measurement state |
ABS: Agree the Evidence Before Production
Material records identify your incoming product. Dimensions and functional checks establish separate evidence for your part.
| Your reference | What to confirm |
|---|---|
| Identity | Complete material, color, lot and route |
| Finished dimensions | Agreed datums, condition, method and sampling |
| Function | Specified tests and approved sample |
PC: Review Your Function First
For your clear covers and functional parts. Agree clarity, cleaning chemicals and installed stress.
| Your reference | What to confirm |
|---|---|
| Material family | PC / polycarbonate |
| Your starting point | Clear stock and molding resin require separate product identification. |
| Your decision | Exact product, route and finished fit |
PC: Confirm the Actual Product
Clear stock and molding resin require separate product identification.
| Your reference | What to confirm |
|---|---|
| Stock product | Manufacturer, product name, color and lot |
| Molding resin | Full grade, color and controlled processing route |
| Your approval | No automatic substitutions; record approved alternatives |
PC: Define the Actual Exposure
Agree clarity, cleaning chemicals and installed stress.
| Your reference | What to confirm |
|---|---|
| Heat and time | Sustained and peak temperature with load |
| Media and contact | Chemical, concentration, stress and duration |
| Dimensions | Humidity, temperature, datums and measurement state |
PC: Agree the Evidence Before Production
Material records identify your incoming product. Dimensions and functional checks establish separate evidence for your part.
| Your reference | What to confirm |
|---|---|
| Identity | Complete material, color, lot and route |
| Finished dimensions | Agreed datums, condition, method and sampling |
| Function | Specified tests and approved sample |
Nylon / PA: Review Your Function First
Review moisture, loads and final fit. Specify the moisture state before approving dimensions.
| Your reference | What to confirm |
|---|---|
| Material family | PA6 / PA66 and other polyamides |
| Your starting point | Cast or extruded stock; exact resin for molded parts. |
| Your decision | Exact product, route and finished fit |
Nylon / PA: Confirm the Actual Product
Cast or extruded stock; exact resin for molded parts.
| Your reference | What to confirm |
|---|---|
| Stock product | Manufacturer, product name, color and lot |
| Molding resin | Full grade, color and controlled processing route |
| Your approval | No automatic substitutions; record approved alternatives |
Nylon / PA: Define the Actual Exposure
Specify the moisture state before approving dimensions.
| Your reference | What to confirm |
|---|---|
| Heat and time | Sustained and peak temperature with load |
| Media and contact | Chemical, concentration, stress and duration |
| Dimensions | Humidity, temperature, datums and measurement state |
Nylon / PA: Agree the Evidence Before Production
Material records identify your incoming product. Dimensions and functional checks establish separate evidence for your part.
| Your reference | What to confirm |
|---|---|
| Identity | Complete material, color, lot and route |
| Finished dimensions | Agreed datums, condition, method and sampling |
| Function | Specified tests and approved sample |
POM / Acetal: Review Your Function First
For your sliding and precision components. Review both mating surfaces and the actual service environment.
| Your reference | What to confirm |
|---|---|
| Material family | POM-C / acetal copolymer; POM-H / homopolymer |
| Your starting point | TECAFORM AH natural is POM-C stock; Delrin 500P is POM-H resin. |
| Your decision | Exact product, route and finished fit |
POM / Acetal: Confirm the Actual Product
TECAFORM AH natural is POM-C stock; Delrin 500P is POM-H resin.
| Your reference | What to confirm |
|---|---|
| Stock product | Manufacturer, product name, color and lot |
| Molding resin | Full grade, color and controlled processing route |
| Your approval | No automatic substitutions; record approved alternatives |
POM / Acetal: Define the Actual Exposure
Review both mating surfaces and the actual service environment.
| Your reference | What to confirm |
|---|---|
| Heat and time | Sustained and peak temperature with load |
| Media and contact | Chemical, concentration, stress and duration |
| Dimensions | Humidity, temperature, datums and measurement state |
POM / Acetal: Agree the Evidence Before Production
Material records identify your incoming product. Dimensions and functional checks establish separate evidence for your part.
| Your reference | What to confirm |
|---|---|
| Identity | Complete material, color, lot and route |
| Finished dimensions | Agreed datums, condition, method and sampling |
| Function | Specified tests and approved sample |
PEEK: Review Your Function First
Review demanding heat and load together. Temperature, load, duration and grade determine the review.
| Your reference | What to confirm |
|---|---|
| Material family | PEEK / polyetheretherketone |
| Your starting point | TECAPEEK stock and VICTREX resin are different purchasing products. |
| Your decision | Exact product, route and finished fit |
PEEK: Confirm the Actual Product
TECAPEEK stock and VICTREX resin are different purchasing products.
| Your reference | What to confirm |
|---|---|
| Stock product | Manufacturer, product name, color and lot |
| Molding resin | Full grade, color and controlled processing route |
| Your approval | No automatic substitutions; record approved alternatives |
PEEK: Define the Actual Exposure
Temperature, load, duration and grade determine the review.
| Your reference | What to confirm |
|---|---|
| Heat and time | Sustained and peak temperature with load |
| Media and contact | Chemical, concentration, stress and duration |
| Dimensions | Humidity, temperature, datums and measurement state |
PEEK: Agree the Evidence Before Production
Material records identify your incoming product. Dimensions and functional checks establish separate evidence for your part.
| Your reference | What to confirm |
|---|---|
| Identity | Complete material, color, lot and route |
| Finished dimensions | Agreed datums, condition, method and sampling |
| Function | Specified tests and approved sample |
PTFE: Review Your Function First
For your seals and chemical-contact parts. Review deformation, sealing contact and your exact medium.
| Your reference | What to confirm |
|---|---|
| Material family | PTFE / polytetrafluoroethylene |
| Your starting point | Confirm stock form and route; conventional injection molding is not assumed. |
| Your decision | Exact product, route and finished fit |
PTFE: Confirm the Actual Product
Confirm stock form and route; conventional injection molding is not assumed.
| Your reference | What to confirm |
|---|---|
| Stock product | Manufacturer, product name, color and lot |
| Molding resin | Full grade, color and controlled processing route |
| Your approval | No automatic substitutions; record approved alternatives |
PTFE: Define the Actual Exposure
Review deformation, sealing contact and your exact medium.
| Your reference | What to confirm |
|---|---|
| Heat and time | Sustained and peak temperature with load |
| Media and contact | Chemical, concentration, stress and duration |
| Dimensions | Humidity, temperature, datums and measurement state |
PTFE: Agree the Evidence Before Production
Material records identify your incoming product. Dimensions and functional checks establish separate evidence for your part.
| Your reference | What to confirm |
|---|---|
| Identity | Complete material, color, lot and route |
| Finished dimensions | Agreed datums, condition, method and sampling |
| Function | Specified tests and approved sample |
PEI / ULTEM: Review Your Function First
Review electrical and heat-related needs. Specify the exact grade and evidence for electrical or flame requirements.
| Your reference | What to confirm |
|---|---|
| Material family | PEI / polyetherimide |
| Your starting point | ULTEM is a brand; preserve full grade, color and product form. |
| Your decision | Exact product, route and finished fit |
PEI / ULTEM: Confirm the Actual Product
ULTEM is a brand; preserve full grade, color and product form.
| Your reference | What to confirm |
|---|---|
| Stock product | Manufacturer, product name, color and lot |
| Molding resin | Full grade, color and controlled processing route |
| Your approval | No automatic substitutions; record approved alternatives |
PEI / ULTEM: Define the Actual Exposure
Specify the exact grade and evidence for electrical or flame requirements.
| Your reference | What to confirm |
|---|---|
| Heat and time | Sustained and peak temperature with load |
| Media and contact | Chemical, concentration, stress and duration |
| Dimensions | Humidity, temperature, datums and measurement state |
PEI / ULTEM: Agree the Evidence Before Production
Material records identify your incoming product. Dimensions and functional checks establish separate evidence for your part.
| Your reference | What to confirm |
|---|---|
| Identity | Complete material, color, lot and route |
| Finished dimensions | Agreed datums, condition, method and sampling |
| Function | Specified tests and approved sample |
Compare Requirements for Your Drawing
Use these as starting points for review. They are not approvals or interchangeable alternatives.
| Your requirement | Families to review | What your drawing should clarify |
|---|---|---|
| Clear or visible parts | PC · PMMA | Clarity, thickness, impact and cleaning chemicals |
| Sliding or wear contact | POM · PA · UHMW-PE | Load, speed, counterface, lubrication and temperature |
| Heat combined with load | PEEK · PEI · PPS | Temperature, duration, load and exact filled or unfilled grade |
| Chemical-contact components | PTFE · PP · HDPE | Medium, concentration, stress, temperature and exposure time |
Manufacturer-Reported Stock Density
DIN EN ISO 1183 · g/cm³
Ensinger stock-shape references. Density helps compare mass at the same volume; it is not a strength, wear or service-temperature ranking. Confirm current product data.
Manufacturer data source →2 Purchasing Routes. Different Material Evidence.
A common material name does not define the product you are buying.
CNC Stock: Sheet, Rod or Tube
Specify the stock manufacturer, full product, color and supplied condition. Confirm machining stress and final-fit checks.
Molding Resin: Full Grade + Color
Specify the resin grade and approve the molded sample. Material records are not finished-product approval.
Process suitability is material-specific. PTFE and UHMW-PE are not assumed to follow conventional injection-molding routes.
Other Common & Specialty Plastics
11 additional families for your drawing, plus a route for your specified grade.
PMMA / AcrylicTransparency & appearance›UHMW-PEWear strips & guides›PVC-URigid industrial components›PPLightweight & chemical-contact parts›HDPESupports & equipment components›PETGuides & precision components›PBTStructural & electrical parts›PPSHeat, stiffness & exposure›PSUThermal-cycle requirements›PPSURepeated cleaning & heat review›PC/ABSBlended resin for housings›Your Specified GradeConfirm full product, color and availability.›
Common industrial plastics and specialty materials are grouped for selection. No blanket availability or compliance claim.
Read the Polymer, Formulation and Product Name
| Family / composition | Procurement detail to retain |
|---|---|
| ABS · PC · PA · POM | Full polymer designation; PA6/PA66 and POM-C/POM-H differ |
| PEEK · PTFE · PEI | Exact polymer, manufacturer product and supplied form |
| Filled or wear modified | Filler type, declared content, direction and lubricant formulation |
| Material analysis or certificate | Agreed report, actual product/lot and applicable test method |
Resolve 6 Material Risks Before Production
Review the conditions that change your finished part, not just a data-sheet headline.
Define the State in Which Your Part Must Fit
For moisture-sensitive materials such as nylon, agree the inspection state and service conditions before approving dimensions.
01 · Temperature & RH
02 · Dry or conditioned state
03 · Datums & support
Apply the review to your exact grade and part. One rule does not fit every polymer.
Review Temperature, Duration and Load Together
For high performance plastic parts, verify the specific grade at sustained and peak conditions. A melt test or short-term heat test is not a service guarantee.
01 · Temperature & time
02 · Load & creep
03 · Actual environment
Apply the review to your exact grade and part. One rule does not fit every polymer.
Review Both Sides of Your Sliding Contact
For engineering plastics wear resistance, compare the same counterface, pressure, speed, temperature and lubrication. No single wear ranking fits every assembly.
01 · Load & speed
02 · Counterface & finish
03 · Lubrication & test
Apply the review to your exact grade and part. One rule does not fit every polymer.
Describe the Exposure Before Choosing a Polymer
For engineering plastics chemical resistance, identify the chemical, concentration, stress, temperature and contact duration. Agree outdoor and cleaning exposure separately.
01 · Medium & concentration
02 · Stress & duration
03 · UV & cleaning
Apply the review to your exact grade and part. One rule does not fit every polymer.
Choose Reinforcement Around the Finished Function
Reinforced grades can change stiffness, direction dependence, surface finish and mating wear. Review the exact formulation and process orientation.
01 · Filler formulation
02 · Direction & geometry
03 · Contact surface
Apply the review to your exact grade and part. One rule does not fit every polymer.
Control the Product Behind the Color
Natural, black and custom colors do not identify a grade or prove its approval. Preserve the full product, pigment designation, lot and agreed material evidence.
01 · Full grade & color
02 · Lot identity
03 · Required records
Apply the review to your exact grade and part. One rule does not fit every polymer.
Match the Route to Your Finished Part
Material, geometry and acceptance requirements determine the manufacturing scope.
CNC Machining
For engineering plastics machining services, confirm actual stock, the machining plan and finished-fit state.
Explore service →
Injection Molding
For engineering plastics injection molding, review resin, drying, shrinkage, tooling and sample approval.
Explore service →
Profile Extrusion
Review continuous section, resin and delivery length; confirm the exact material and extrusion scope.
Explore service →Agree 3 Checks for Your Receiving Team
| Your check | Evidence to agree |
|---|---|
| 01 Material identity | Full product, color, lot and purchasing form |
| 02 Finished dimensions | Inspection state, datums and agreed methods |
| 03 Function & records | Specified tests, sample approval and required documents |
Agree sampling and document scope before production.
6 Inputs for Your Quote
Share the requirements that affect cost and acceptance.
- 01CAD + controlled drawing
- 02Material + approved alternatives
- 03Stock or molding route
- 04Heat, load + exposure
- 05Critical fit + appearance
- 06Quantities, records + delivery
Separate material, tooling or machining, finishing, inspection and delivery.
Answers Before You Specify
What information is needed to select an engineering plastic for custom parts?
Share your CAD and controlled drawing, quantities, critical fit, loads, temperature, humidity, media, motion and acceptance needs. If the grade is open, request conditional candidates and approve the exact product before production.
How do I narrow down engineering plastics with similar datasheet properties?
Compare long-term loads, actual exposure, stock or resin route, available sizes, machining or tooling and validation cost. Engineering plastics material properties need the same test conditions before direct comparison.
When should engineering plastic parts be machined rather than molded?
Compare quantities, geometry, tooling, blank utilization, lead-time needs and acceptance scope. Engineering plastic prototyping can check fit, but a machined or printed sample does not establish molding shrinkage or production performance.
Is every acetal material Delrin?
No. Delrin is a POM homopolymer brand. Confirm the manufacturer, complete product, color and purchasing form. POM-C and POM-H are different material designations.
Does a resin datasheet identify my sheet or rod?
No. Identify the actual stock-shape manufacturer, full product, supplied condition and lot. Resin data cannot establish the identity of unspecified stock.
Are reinforced grades always better?
No. Review stiffness, direction, tool wear, surface finish and wear against the mating component. Approve the full reinforced formulation for your part.
Is every grade flame-rated or approved for contact?
No. Any flame, food-contact or regulated requirement needs the exact grade, color, product form, evidence and intended use. A family name is not approval.
Can a printed prototype validate production performance?
Only for its agreed purpose. Record differences in material, form, orientation and process; approve fit and function separately. Do not treat a visual prototype as production-material evidence.
How can inspection avoid deforming softer plastic parts?
Agree support, measuring force, temperature, humidity and any suitable non-contact method. Engineering plastics dimensional stability and compliant geometry both affect the reading.
What should an engineering plastic parts quote include?
For your custom engineering plastic parts, compare material and blank size, machining or tooling, quantity, finish, inspection, records and delivery against the same drawing. If material is unspecified, agree the selection criteria and approval step.
Material references: Ensinger · manufacturer product documents. Stock, resin and finished-part evidence serve different purposes.
Material selection reference →
