INSPECTION & TESTING
Inspection & Testing for Custom Silicone Components
SM applies project-specific inspection checks to custom silicone and interface components, using the current drawing, accepted sample and agreed acceptance references throughout the production route.
Inspection points are defined around the characteristics that control fit, appearance or function, including critical dimensions, mating interfaces and application-related checks where relevant.
Start with the drawing, sample and quality information already available.
Drawing • Approved Sample • Visual • Dimensions • Fit • Release
DRAWING
APPROVED SAMPLE
MATING PART
QUALITY INPUTS
Define Critical Characteristics Before Inspection
Useful inspection begins with the characteristics that actually affect the component.
01
Drawing Criteria
Identify the dimensions, features and notes that control the part.
02
Approved Sample
A physical sample can define appearance, feel, fit and other attributes that are difficult to communicate through drawings alone.
03
Appearance & Markings
Identify visible surfaces, printed or laser-processed legends, color references and other appearance-sensitive areas.
04
Critical Dimensions
Highlight dimensions that affect fit, alignment, travel or another functional relationship.
05
Fit & Assembly
Where the component works with a plastic housing or another part, provide the relevant mating geometry or sample.
06
Tactile / Force
If button feel or actuation force matters, define the expected behavior and acceptance reference before the measurement method is confirmed.
07
Surface Durability
For printed or coated areas, identify whether wear resistance is an acceptance characteristic.
08
Environmental Context
If temperature exposure or another environmental condition matters, define the condition that needs to be evaluated.
APPROVED REFERENCES
Use Clear References for Production Acceptance
A quality check is only useful when the acceptance reference is clear.
01
Current Drawing
The current released drawing provides the dimensional and technical reference for the component.
02
Accepted Physical Sample
The approved sample can define appearance, fit and other physical characteristics agreed during development.
03
Artwork / Color Reference
For decorated parts, approved artwork and visual references help define legends, position and appearance.
04
Mating Components
Relevant plastic housings, frames or other mating parts provide the context needed for fit and interface checks.
INSPECTION CHECKPOINTS
Inspection Across the Production Route
01
Sample Confirmation
Check the initial component against the drawing, approved references and agreed quality points before the production reference is established.
02
In-Process Checks
Check defined characteristics at the production stages where they can be meaningfully evaluated.
03
Final Inspection
Evaluate finished parts against the current drawing, accepted sample and agreed release references.
04
Release Decision
Use the approved references and project-specific acceptance conditions to determine whether the component is ready for shipment.
Sampling level and detailed inspection method remain project-specific.
APPEARANCE REFERENCE
APPEARANCE EVIDENCE
Visual Inspection for Appearance-Critical Features
Visual checks need to focus on the surfaces that remain visible in the finished product.
Relevant checkpoints may include:
The accepted sample and approved artwork provide useful comparison references when appearance cannot be fully defined by text alone.
- surface condition
- visible marks or defects
- printed or laser-processed legend position
- coating appearance
- color reference
- visible flash or edge condition where applicable
- alignment with the finished interface
DIMENSIONAL EVIDENCE
Dimensional Checks Focus on Critical Features
Not every dimension has the same effect on the finished component.
Inspection should focus first on features that control:
The drawing should identify the dimensions with the greatest design or assembly importance.
Tolerance and measurement method remain component-specific.
- fit with the mating housing
- button or keypad position
- locating geometry
- openings and alignment
- assembly relationship
- functional movement where applicable
Drawing
Critical Feature
Measurement
CRITICAL DIMENSION CHECK
Alignment
Clearance
Locating Features
Visible Spacing
INTERFACE EVIDENCE
Fit and Interface Checks Need the Mating Context
A silicone component may meet its individual drawing and still create a problem if the surrounding interface is not considered.
Where practical, fit checks should use:
This is especially relevant for keypads, buttons and other interface components where alignment, clearance and visible spacing affect the finished result.
- the mating plastic housing
- representative mating geometry
- the accepted assembly sample
- defined locating features
APPLICATION-RELATED CHECKS
Define Application-Related Test Criteria
Some projects need more than dimensional and visual inspection.
The applicable check should follow the product application rather than a generic test list.
Tactile / Force
For buttons or keypads, define the force or tactile behavior that matters before confirming the measurement method.
Surface Wear
For printed or coated areas, define whether wear resistance needs to be evaluated and which surface or legend is critical.
Temperature Context
Where temperature exposure is relevant, identify the condition and the component characteristics that need evaluation.
Project-Specific Method
Method, duration, acceptance limits and reporting expectations should be agreed for the actual project before testing begins.
QUALITY BRIEF
What to Send When Quality Criteria Matter
Useful inputs include:
PART REFERENCE
- current 2D drawing or 3D data
- accepted sample, if available
- critical dimensions
- appearance-critical areas
- artwork / color reference
- mating components
APPEARANCE / FUNCTION
- fit or assembly criteria
- tactile / force criteria, if applicable
- wear criteria, if applicable
- temperature or environmental context, if applicable
CUSTOMER QUALITY INPUT
- customer-specific inspection criteria
- customer-defined sampling or inspection frequency, if applicable
- documentation expectations, if any
CONNECTED QUALITY
How Inspection Connects with Molding, Finishing and Assembly
Inspection is most useful when it stays connected to the manufacturing stage that creates the feature being checked.
Silicone Molding → Surface Finishing → Plastic Fit → Assembly → Inspection & Release
FAQ
Frequently Asked Questions About Silicone Component Inspection
What quality information should I include with a quotation request?
Identify the drawing revision, critical dimensions, appearance points, mating components and any functional or customer-specific checks that matter to the project.
Can an approved physical sample be used as an inspection reference?
Yes. An accepted sample can provide appearance, fit and physical-reference information that may not be fully captured in a drawing.
Do all components use the same inspection plan?
No. Inspection points should follow the drawing, component function, manufacturing route and agreed project conditions.
Can fit be checked with a plastic housing or mating part?
Yes. Relevant mating components or representative geometry can be used where fit and interface relationships are part of the acceptance reference.
Can printed or laser-processed areas be inspected?
Yes. Artwork position, visible appearance and other agreed surface characteristics can be included in the inspection plan.
Can tactile or force criteria be included?
Yes. If tactile response or force is important, define the intended behavior and acceptance target so the applicable method can be confirmed.
Can wear or temperature-related checks be included?
They can be defined where relevant to the component. The method, conditions and acceptance limits need to be agreed for the actual project.
Are inspection tolerances the same for every silicone component?
No. Tolerances depend on the component design, manufacturing route, mating relationships and approved project specification.
START WITH THE REQUIREMENT
Have a Drawing, Sample or Quality Requirement to Review?
Send the information that defines fit, appearance or function so the relevant inspection points can be identified for the project.