Technical Spoke: Seal Integrity
100% Seal IntegrityValidation & LeakDetection Testing
Precision zero-leak verification utilizing automated positive pressure decay, vacuum decay, and gasket compression profiling. Engineered to eliminate micro-porosity and seal bypass for pharmaceutical caps, automotive fluid reservoirs, and high-barrier containers.
ZERO-LEAK ASSURANCE
PRESSURE DECAY
VACUUM LEAK TESTING
ASTM F2095 / ISO 8317
IN-LINE & OFF-LINE QA
Why Seal Integrity Matters
Can your closures guarantee absolute, microscopic containment?
In mission-critical packaging and fluid transmission systems, a microscopic defect measuring mere microns can cause product oxidation, microbial contamination, chemical evaporation, or catastrophic hydraulic failure. Mascot Plastic Industries operates advanced in-house pneumatic decay and vacuum testing rigs to validate every closure design under stringent real-world pressure differentials.
Our laboratory combines non-destructive high-throughput in-line pressure decay testing directly on injection molding lines with statistically rigorous destructive immersion and vacuum decay benchmarks. This dual-layer quality approach provides enterprise procurement teams and QA managers with verifiable proof of zero-defect manufacturing.
Testing criteria, leak thresholds (sccm), differential pressures, and dwell durations are calibrated in accordance with ASTM F2095, ASTM D3078, ISO 8317, and USP <1207> guidelines.
Test Overview
100% Seal Integrity Validation
Test Method
Pneumatic Pressure Decay / Vacuum Decay / Bubble Emission
Testing Location
Mascot Cleanroom & QA Laboratory Facilities
Detection Sensitivity
Down to 10⁻³ to 10⁻⁵ sccm (standard cc/min)
Applicable Standards
ASTM F2095, ASTM D3078, ISO 8317, USP <1207>
Test Flow
How the seal integrity testing works
A strictly controlled engineering protocol from pneumatic fixturing through high-resolution micro-decay differential capture.
01
Fixture Sealing
Components are mechanically clamped in custom pneumatic mandrels with calibrated elastomeric sealing gaskets.
02
Charge Cycle
The sealed internal cavity is charged with dry filtered nitrogen or compressed air to the target test pressure.
03
Stabilization
A controlled dwell time allows thermal and mechanical equilibrium to eliminate adiabatic pressure fluctuations.
04
Delta-P Measurement
High-frequency differential sensors continuously log pressure drop (ΔP) over precise sub-second increments.
05
Validation Output
Automated pass/fail classification against pre-set leak rate tolerances with direct SPC data logging.
Quantitative Validation
Critical metrics evaluated
Our metrology-grade testing instrumentation provides empirical leak rates and mechanical closure seating parameters.
Micro-Leak Rate (sccm)
High-resolution quantitative determination of micro-porosity, parting line flashing bypass, or micro-void venting down to fractional cubic centimeters per minute.
Thread & Torque Dynamics
Evaluation of continuous torque vs. angle curves, seal contact seating force, thread jump resistance, and stripping thresholds under dynamic vibration.
Gasket & Liner Compression
Measurement of induction seal hermetic bond, elastomer rebound resilience, and interfacial pressure distribution under variable thermal extremes.
Verification Sequence
From component mold cycle to QA certificate
Structured stages ensuring repeatable, traceable seal integrity compliance.
01
Part Extraction
Robotic takeout directly from cavity
02
Pneumatic Clamp
Zero-deflection sealing fixture
03
Pressure Charge
Controlled bar/psi ramp
04
Decay Tracking
Sub-millibar resolution sensors
05
QA Certification
Lot-traceable compliance record
Key Applications
Industry sectors relying on Mascot seal validation
Our seal testing protocols are customized for the stringent demands of medical, automotive, agrochemical, and personal care packaging.
Key Application
Pharmaceutical & Medical Closures
Sterile-barrier validation and hermetic containment testing for pharmaceutical bottles, diagnostic reagents, dropper tips, and child-resistant caps (CRC).
Child-resistant closures (CRC)
Medical diagnostic vials
Eye dropper caps & tips
Reagent liquid bottles
Tamper-evident closure bands
Key Application
Automotive Fluid Assemblies
Leak-free validation for under-hood thermal fluid reservoirs, radiator expansion caps, brake fluid lids, and pneumatic sensor housings.
Brake fluid reservoirs
Engine coolant expansion caps
Windshield washer nozzles
Fuel vapor emission valves
Hydraulic connector couplings
Key Application
Agrochemical & Chemical Packaging
High-barrier containment validation against aggressive chemicals, solvents, and volatile agrochemical formulations prone to stress cracking.
Pesticide container caps
Vented pressure-relief closures
Induction seal bottle necks
Hazardous chemical jerry cans
Industrial dispensing spouts
Key Application
Cosmetics & Personal Care
Aesthetic and functional seal testing preventing formula dry-out, fragrance evaporation, and pump head seepage in premium personal care containers.
Airless treatment pump heads
Double-wall cosmetic jars
Flip-top dispensing caps
Fragrance atomizer closures
High-viscosity lotion valves
Quality Assurance Suite
Explore sibling laboratory testing capabilities
Our integrated QA framework interconnects leak prevention, pressure resistance, and precision metrology.
Technical Spoke 01
Hydrostatic Bursting Strength Testing →
Controlled burst and internal hydrostatic pressure testing evaluating structural yield and pressure containment limits (ASTM D1599 / ISO 1167).
Technical Spoke 03
High-Accuracy Dimensional Analysis →
Sub-micron CMM tactile probing, Vision Measuring Machines (VMM), and ASME Y14.5 GD&T verification down to ±0.005 mm.
Laboratory Documentation
Comprehensive QA Test Record
Every production validation run generates an auditable testing certificate conforming to your specific engineering and regulatory submission standards.
✓
Production lot & cavity ID
✓
Polymer grade & masterbatch lot
✓
Test pressure & vacuum setpoints
✓
Measured leak rate (sccm)
✓
Dwell & stabilization timing
✓
Torque application curve
✓
Pass / Fail classification
✓
Statistical Cpk verification
For Procurement & QA Audits
Empirical compliance for regulated industries.
Our rigorous testing infrastructure satisfies international procurement criteria for pharmaceutical, automotive, and consumer safety audits.
✓
ISO 13485 medical device environment
✓
GMP compliance & cleanroom packaging
✓
USP <1207> container closure integrity (CCIT)
✓
ISO 9001, 14001 & 45001 certified plant
✓
Full Certificate of Analysis (CoA) per run
Technical Spoke Capability
Need 100% seal integrity validation for your closures?
Share your 2D engineering drawings, 3D CAD files, and leak rate thresholds. Our engineering and quality assurance team will provide a comprehensive testing protocol and production feasibility analysis.
Automated Leak Testing
Pressure Decay
Vacuum Decay
Torque Mapping
Production Verification
