The ZIEGLER SAFT‑24 (Shear Adhesion Failure Temperature or Resistance to shear from a standard surface) is a shear tester designed for vertical shear tests (2° inclination to the vertical) of self-adhesive materials on test plates and their ability to withstand high temperatures. A shear force test with a constantly increasing temperature is performed in accordance with PTSC‑17. The samples are tested in a heating chamber for temperature control.

The shear force tester assesses the resistance of an adhesive to static load in the plane of the label material. Information is provided to interpret the failure mode, such as adhesive or cohesive failure. The test conditions are predefined. The SAFT tester complies with the specifications and test guidelines of various institutions.
Supported test standards/methods
- PSTC-17**
Shear Adhesion of Pressure Sensitive Tape - ASTM*** D 4498
Standard Test Method for Heat-Fail Temperature
in Shear of Hot Melt Adhesives - FINAT**** FTM 8 (without heat)
- Afera***** 5012
Self Adhesive Tapes Measurement
of Static Shear Adhesion (without heat)
Scope of delivery
Test device
- Modified heating chamber
- Control unit for 24 samples
- 4 test bars for 6 samples each
- Test weights:
24 x 500 g cylindrical weights
24 x 500 g ring weights - 48 triangles
- 48 sample plates
Software
- ZIEGLER software SaftSOFT for Microsoft® Windows® 11
User manuals
- SAFT‑24 + SaftSOFT user manual
- User manual for the heating chamber
Additional accessories
- Built-in electric lift
- PC system
- Mini PC
- Touch screen
- Wireless keyboard
- Wireless mouse
- Monitor arm for heating chamber mounting
- Remote controller