Injection Molding Engineering Template

Part & Resin Data Sheet Template for Injection Molding

Part and resin data sheet template with resin grade shrink CTQ dimension and revision fields for injection molding review
Template preview for recording controlled part, resin, shrink and CTQ inputs before technical review.

Use this template to place the part revision, exact resin grade, shrink basis, CTQ requirements and application conditions in one controlled record before DFM or tooling review.

Quick answer: the sheet should identify what part is being reviewed, which resin and reinforcement are intended, what dimensional or cosmetic requirements are critical, and which assumptions still require confirmation. It records the engineering inputs; it does not replace material selection, tolerance feasibility or DFM analysis.
Part Control Part number, drawing revision, annual volume and application.
Resin Control Manufacturer, exact grade, filler, color, compliance and shrink basis.
Critical Requirements CTQ dimensions, tolerances, surface expectations and review notes.

Downloadable asset: the final page will provide both the review PDF and editable working sheet. Detailed material selection, tolerance capability and validation decisions remain in their dedicated guides.

Project-Stage Use

When Should You Use the Part & Resin Data Sheet?

Use the sheet when the part revision and intended resin are defined well enough for technical review, but the project still needs one controlled record for shrink, CTQ, tolerance and application inputs. It sits between early quotation preparation and detailed DFM or tooling decisions.

Earlier Stage

RFQ Package Is Still Being Prepared

If CAD, volume, resin or project scope are still being assembled for supplier pricing, start with the Injection Mold RFQ Checklist instead.

Use This Template

Part and Resin Inputs Need Controlled Review

Use this data sheet once the drawing revision, intended resin and critical part requirements can be recorded clearly enough for engineering review and supplier clarification.

Later Stage

Detailed DFM or Tooling Decisions Begin

Once the inputs are controlled, detailed manufacturability, tolerance capability, material selection and tooling decisions should move to their dedicated technical reviews.

Boundary: this template records the agreed or proposed engineering inputs. It does not approve the resin, prove tolerance capability, validate the supplier, or authorize steel cutting.
Part Control Inputs

Start With the Correct Part, Revision and Project Baseline

Before resin, shrink or CTQ data can be reviewed, the sheet must identify exactly which part and drawing revision the information belongs to. A controlled baseline prevents technical comments from being applied to an outdated geometry or the wrong production assumption.

01 / Part Identity

Part Number and Project Name

Record the customer part number, internal project reference and a clear part description so the data sheet can be matched to the correct component.

02 / Revision Control

Drawing and CAD Revision

State the drawing revision and corresponding CAD revision used for review. If geometry is still changing, identify the revision as provisional rather than mixing versions.

03 / Production Basis

Annual Volume and Program Demand

Provide expected annual volume or a realistic demand range. This gives engineering teams the production context needed when later reviewing material and tooling requirements.

04 / Application

Use Environment and Assembly Function

Note the part function and relevant operating environment, such as temperature, chemical exposure, load, appearance or assembly conditions that may affect later resin review.

Controlled Baseline

One Data Sheet Should Refer to One Defined Revision Basis

If the part geometry, drawing revision or production assumptions change, update the data sheet revision as well. This keeps later resin, shrink and CTQ discussions tied to the same technical baseline.

Scope rule: this section identifies the part and project baseline only. Resin selection, shrink behavior and tolerance capability are reviewed in the following sections and their dedicated guides.
Resin Control Inputs

Record the Exact Resin Grade, Filler and Compliance Requirements

“ABS,” “PC” or “PA66” is usually too broad for a controlled technical review. The data sheet should record the exact commercial resin, reinforcement and project-specific compliance inputs so later shrink, CTQ and processing discussions refer to the same material basis.

01 / Material Identity

Manufacturer and Exact Commercial Grade

Record the resin manufacturer and full grade designation rather than only the polymer family. If the grade is not final, mark it as provisional and identify who must approve the final selection.

02 / Reinforcement

Filler Type and Percentage

State glass fiber, mineral or other reinforcement and its nominal percentage where applicable. Do not assume that two grades from the same polymer family behave as equivalent materials.

03 / Appearance

Color and Cosmetic Requirement

Record the required color, masterbatch or customer color reference when appearance matters. Note whether the color requirement is fixed or still subject to sample approval.

04 / Compliance

Flame, Regulatory or Customer Requirements

Enter relevant UL, flame-rating, RoHS, REACH or customer-specific requirements only when they apply, including thickness or test-condition references where the project specification defines them.

Authority rule: shrinkage, drying conditions, flame rating and material properties should be checked against the current resin-manufacturer datasheet and the project specification rather than treated as universal values.
If the project has not yet selected a resin, use the Injection Molding Material Selection Guide for the selection decision; this template only records the material basis used for review.
Shrink & Use Conditions

Record the Shrink Basis and Application Environment

The data sheet should record the shrink values being used for review and the service conditions that may affect dimensional, cosmetic or material decisions. These are controlled inputs, not final proof of molded-part behavior.

Shrink Basis

Record the Values and Their Source

Where the resin datasheet provides directional values, record flow and transverse shrink separately. Also identify whether the value comes from the current manufacturer datasheet, a customer specification or an agreed engineering assumption.

  • Datasheet shrink range
  • Flow-direction value where applicable
  • Transverse-direction value where applicable
  • Applied review value or agreed assumption
01 / Temperature

Operating Temperature

Record normal and relevant extreme temperatures when thermal exposure may influence material or dimensional review.

02 / Exposure

Moisture and Chemical Environment

Note water, humidity, oils, cleaners, fuels or other exposure conditions that are relevant to the application.

03 / Function

Load and Assembly Conditions

Identify whether the part carries load, snaps, seals, locates, slides or interfaces with another controlled component.

04 / Appearance

Dimensional or Cosmetic Sensitivity

Flag applications where flatness, fit, visible surface quality or long-term dimensional stability requires extra review.

Boundary: recording shrink and use conditions does not predict final warpage or approve a mold shrink factor. Detailed material behavior and warpage analysis should be handled in the relevant engineering review.
CTQ & Measurement Inputs

Record CTQ Dimensions, Tolerances and the Measurement Basis

The data sheet should record which dimensions are critical, what tolerance is required, which datum or assembly relationship applies, and how the dimension will be checked. This creates a common input record before tolerance feasibility is evaluated.

Input Field What to Record Why It Matters
CTQ / Critical Feature Dimension or feature ID tied to the current drawing revision Separates approval-critical requirements from general dimensions.
Nominal & Tolerance Nominal value and the actual specified tolerance Prevents supplier review from relying on an assumed or generic molding tolerance.
Datum / Interface Relevant datum, assembly interface or functional relationship Provides the measurement and fit context needed for later engineering review.
Measurement Method CMM, gauge, fixture, optical method or other agreed inspection approach Clarifies how the requirement will be checked without turning this sheet into an inspection plan.
Measurement Timing Timing or conditioning requirement only where it is project-critical Keeps dimension-sensitive reviews consistent when stabilization or conditioning is relevant.
Record the Requirement

Use the Drawing as the Controlled Source

The data sheet should reference the drawing requirement rather than replace it. If a CTQ changes, update the drawing revision and the corresponding sheet entry together.

Do Not Decide Feasibility Here

Tolerance Capability Is a Separate Review

Recording a tolerance does not prove it is repeatable in molding. Geometry, resin, shrink behavior, measurement method and process capability still require engineering evaluation.

Need to judge whether the tolerance is realistic? Use the Injection Molding Tolerance Feasibility Checklist for the capability decision; this template only records the requirement and measurement basis.
Filled Example

Example: How a Part & Resin Data Sheet Can Be Filled Out

A useful data sheet does not need long engineering explanations. It should show the controlled project value, identify where the value came from, and make open assumptions visible instead of leaving important fields blank.

Field Illustrative Entry Review Note
Part / Revision Actuator Housing — Rev C Defined CAD and drawing must use the same revision basis.
Annual Volume 120,000 parts / year Production context only; detailed tooling strategy is reviewed separately.
Resin PA66 GF30 — customer-approved commercial grade Manufacturer and full grade name should be entered in the working sheet.
Color / Compliance Black; compliance per customer drawing Do not assume a regulatory rating unless the project specification requires it.
Shrink Basis Flow and transverse values from current manufacturer TDS Record the source and any applied engineering assumption.
CTQ Example Boss center distance: 42.00 ±0.10 mm Datum and functional relationship should match the controlled drawing.
Measurement Basis CMM; timing per agreed project requirement Record the method without turning the sheet into a full inspection plan.
Open Item Final shrink value — supplier review required Open Open assumptions should be visible rather than silently filled in.
Illustrative example only: the material, dimensions and production values above are examples of how to structure the record, not recommended design values. Final entries should come from the released drawing, current resin-manufacturer data and project-specific engineering requirements.
Scope Boundary

What the Part & Resin Data Sheet Does Not Replace

The template creates a controlled input record. It does not replace the engineering decisions that use those inputs. Keeping those roles separate prevents this sheet from becoming a material, tolerance, DFM or validation procedure.

Not a Material Selector

Material Selection Still Requires Engineering Review

The sheet records the intended resin grade and supporting requirements. It does not decide whether that resin is the best choice for the application.

Not a DFM Checklist

Design Feasibility Is Reviewed Separately

Wall thickness, ribs, draft, undercuts, gate strategy and other moldability decisions belong in the DFM and mold-design review process.

Not a Tolerance Approval

Recording a CTQ Does Not Prove Capability

The sheet captures the requested dimension, tolerance and measurement basis. Repeatability and molding capability still require a separate feasibility review.

Not a Validation Package

FAI, PPAP and Validation Evidence Remain Separate

The template may support later inspection or approval work, but it does not replace FAI, PPAP, capability studies or customer-specific validation records.

Parent topic: for the broader sequence of design decisions that follows these controlled inputs, continue with the Injection Mold Design Decision Guide .
Downloadable Engineering Asset

Download the Part & Resin Data Sheet

Use the PDF for a clean review baseline and the Excel workbook for project-specific data entry, revision updates and open-item tracking. Both files follow the same controlled-input structure used in this guide.

Review Version / PDF v2.0

SPI Part & Resin Data Sheet — PDF

A two-page engineering review sheet for aligning the part baseline, exact resin, shrink source, application conditions and CTQ measurement inputs.

  • Part, drawing and CAD revision baseline
  • Resin, filler, color and compliance inputs
  • Shrink, environment and CTQ review fields
  • Open-item and engineering sign-off area
Open PDF v2.0 PDF · Review / alignment version
Editable Version / Excel v2.0

SPI Part & Resin Data Sheet — Excel

An editable working workbook for entering project data, maintaining revisions and showing whether technical inputs are defined, provisional or still open.

  • Editable Working Sheet for project inputs
  • Guidance sheet with use and boundary rules
  • Status fields for open or provisional requirements
  • CTQ, measurement and review-state tracking
Download Excel v2.0 XLSX · Editable project working file
Use note: keep the PDF as a review reference and use the Excel workbook as the controlled working file. Update the document baseline whenever the drawing, CAD revision, resin basis or CTQ requirement changes.
FAQ & Engineering Handoff

Common Questions About Part & Resin Data Sheets

What should be included in a part and resin data sheet?

Include the part and drawing revision, exact resin manufacturer and grade, filler or reinforcement, color and compliance requirements, shrink basis, application conditions, CTQ dimensions, tolerances, measurement method and any open engineering assumptions.

Should the sheet use a generic polymer name or an exact resin grade?

Use the exact commercial resin grade whenever it is known. A generic label such as PA66 or PC does not define filler content, shrink behavior, color, compliance or other grade-specific properties needed for controlled review.

Does listing a tolerance mean the supplier has confirmed it is moldable?

No. The sheet records the requested CTQ, tolerance, datum and measurement basis. Geometry, resin behavior, shrink, measurement strategy and process capability still require a separate tolerance-feasibility review.

Is the Part & Resin Data Sheet a DFM or validation document?

No. It is a controlled engineering-input record. It can support later DFM, inspection or validation work, but it does not replace DFM analysis, FAI, PPAP, capability studies or customer-specific validation evidence.

Need an Engineering Review Before Tooling?

If the part, resin, shrink or CTQ requirements are ready for review, SPI can evaluate the inputs against the intended injection-molding project and identify items that need clarification before tooling decisions are finalized.

Injection Molding Services Request a DFM Review