Shear Adhesion Testing Instrument
Model KST-300 Series | Holding Power / Shear Strength Testing Machine
The Katpot Systems Shear Tester (Model KST-300 Series) is a precision instrument designed to evaluate the shear strength and holding power of pressure-sensitive adhesives (PSA) used in tapes, labels, and films.
It measures the time taken for an adhesive bond to fail under a constant load — a key indicator of adhesive durability and cohesion.
Available with 3 to 32 channels, the tester can simultaneously evaluate multiple samples, improving testing efficiency and repeatability.
Ideal for quality control labs, R&D centres, and production lines, this tester complies with ASTM D3654 standards.
A robust, digital, and NABL-certified design ensures accurate, repeatable, and traceable shear testing results.
Advanced Features
- Tests up to 21 samples simultaneously for higher productivity.
- Digital LED timer for accurate hold-time measurement.
- Individual fixtures for each sample ensure consistent loading.
- Battery backup (240 hours) allows long-duration tests without power interruptions.
- Compact, modular design — expandable up to 32 channels.
- Stainless-steel load hangers for precise and repeatable results.
- Complies with international shear testing standards (ASTM D3654).
- NABL-traceable calibration certificate ensures verified accuracy.
- Designed for tape, label, and packaging industries where bond durability is critical.
Product Importance
- Determines adhesive holding power under continuous stress.
- Evaluates cohesive strength of tapes and labels during extended load application.
- Ensures adhesives maintain bond integrity under temperature, load, and time conditions.
- Helps identify adhesive creep or slippage during prolonged use.
- Critical for product reliability in packaging, automotive, electronics, and industrial applications.
- Supports R&D optimization of PSA formulations and backing materials.
- Enables manufacturers to meet global QC standards (ASTM D3654 / PSTC-7).
Technical Specifications
| Model No | KST-300 Series |
|---|---|
| Type | Shear Adhesion / Holding Power Test |
| Number of Channels | 5 to 21 (expandable up to 32 on request) |
| Force Range | 1 kg / 500 g per Station |
| Display | High-resolution digital LED display |
| Time Range | 0 to 999 hours |
| Battery Backup | Up to 240 hours |
| Compliance Standard | ASTM D3654 / PSTC-7 |
| Calibration Certificate | NABL-accredited available |
| Construction Material | Stainless-steel fixtures with powder-coated frame |
| Mounting Type | Bench-top unit with level adjusters |
| Power Supply | 230 V AC ±10%, 50 Hz |






