S-HT-30 High-Temperature 30-Station Shear Adhesion Tester
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | S-HT-30 |
| Pricing | Available Upon Request |
Overview
The S-HT-30 High-Temperature 30-Station Shear Adhesion Tester is an engineered solution for evaluating the shear resistance of pressure-sensitive adhesives (PSAs) under elevated thermal conditions. Based on the fundamental principle of constant-load static shear testing—where a standardized substrate is vertically loaded with a defined mass and held at a controlled temperature—the instrument quantifies time-to-failure (slippage) as a primary performance metric. Designed to comply with internationally recognized test protocols—including PSTC-7 Procedure C (Pressure-Sensitive Tape Council) and ASTM D3654 Procedure C (Standard Test Method for Shear Adhesion of Pressure-Sensitive Tapes)—the S-HT-30 enables laboratories to generate reproducible, auditable data required for R&D validation, QC release, and regulatory submissions. Its architecture supports operation inside environmental chambers, forced-air ovens, or low-temperature cabinets, facilitating real-world simulation of end-use conditions across automotive, medical device, electronics, and packaging applications.
Key Features
- 30 independent test stations with individually adjustable leveling screws to ensure precise vertical alignment of all specimens—critical for eliminating torque-induced premature failure.
- High-temperature mechanical switch assembly rated for continuous operation up to 204 °C (400 °F), fabricated from heat-resistant alloys and ceramic-insulated actuation components.
- Integrated battery-powered digital timer with 0.1-minute resolution and 6-meter (20-ft) extended cable—enabling remote placement outside thermal enclosures while maintaining signal integrity.
- Modular removable test rack system designed to minimize thermal mass transfer and stabilize specimen temperature during ramp-up and dwell phases.
- Standardized stainless-steel test plates (50 mm × 75 mm), compliant with PSTC dimensional specifications; accommodates both 100 g and 1000 g calibrated weights for verification and calibration traceability.
- Angle-adjustable mounting platform supporting standard 0° (vertical) and 90° configurations, plus intermediate angles down to 15°—facilitating evaluation of directional shear sensitivity per TLMI No. 7 and internal application specifications.
- Self-contained 12 V DC power system with low-power consumption circuitry, eliminating dependency on external mains within hazardous or high-humidity environments.
Sample Compatibility & Compliance
The S-HT-30 accommodates a broad range of PSA-coated substrates including acrylics, rubber-based tapes, silicone adhesives, transfer films, and foam tapes applied to metals, plastics, glass, and fiberboard. All mechanical interfaces conform to PSTC-14 (adhesion to fiberboard) and ASTM D3654 Annex A/B/C test geometries. The instrument’s design inherently supports GLP-compliant workflows: weight calibration records, operator ID logging (via optional software integration), and environmental chamber synchronization are compatible with 21 CFR Part 11–enabled data systems. Test reports generated using validated methods satisfy requirements for ISO/IEC 17025 accredited laboratories conducting adhesive qualification per automotive OEM standards (e.g., GMW14872, Ford FLTM BO 147–01).
Software & Data Management
While the S-HT-30 operates as a standalone hardware platform, its timer output signal (TTL-level pulse on failure event) is compatible with third-party data acquisition systems (e.g., LabVIEW, MATLAB, or custom SCADA). Optional firmware upgrades support RS-232 or USB-C serial communication for automated timestamping, batch ID assignment, and CSV export of run logs—including start time, ambient/oven temperature (when interfaced with external probes), and slippage duration. Audit trails meet FDA 21 CFR Part 11 requirements when deployed with validated electronic record systems, enabling full traceability from test initiation through final report generation.
Applications
- Accelerated aging studies of PSA performance at elevated service temperatures (e.g., under-hood automotive bonding, solar panel encapsulant stability).
- Comparative evaluation of thermal degradation kinetics across adhesive chemistries under controlled humidity (when used in tandem with programmable environmental chambers).
- QC release testing for medical-grade tapes subjected to sterilization cycles involving dry heat or ethylene oxide exposure.
- Development of high-temperature masking tapes for powder coating and composite curing processes.
- Validation of adhesive anchoring strength in flexible printed electronics exposed to reflow soldering profiles.
FAQ
What temperature range is supported by the S-HT-30?
The instrument is rated for continuous operation up to 204 °C (400 °F); actual test temperature is determined by the external environmental chamber or oven in which it is installed.
Does the S-HT-30 include calibration weights?
Yes—standard 100 g and 1000 g NIST-traceable stainless-steel weights are supplied for periodic mechanical switch verification and system calibration.
Can the S-HT-30 be used for low-temperature shear testing?
Yes; the unit functions reliably in freezers or cryogenic chambers down to –40 °C, provided condensation management and thermal shock mitigation protocols are followed.
Is PSTC-7 Procedure C the only applicable standard?
No—while optimized for PSTC-7 C and ASTM D3654 C, the geometry and load application method also support adaptations for ISO 4587, JIS Z 0237, and internal corporate test methods requiring static shear under thermal stress.
How is test initiation synchronized across all 30 stations?
Each station features a mechanically actuated release lever; simultaneous initiation is achieved via a single master handle linkage, ensuring <±0.5 s timing deviation across all positions.
