ASTM D903 - Centering Device for Perfect T-Peel test

Описание: Many T-peel tests are inherently flawed because the sample is allowed to droop down under its own weight. This droop can affect test results based on the weight of the tape.

Universal Grip offers a special fixture which allows the sample to remain centered and balanced throughout the test. The holder is attached directly to the testing machine and is balanced with a counterweight. This center height can be adjusted by means of an easy to use ratchet system. This fixture is easy to set up and helps to improve testing results.

Setup essentials: Use a constant-rate tensile machine, select the right load cell, and ensure precise grips/fixtures. Universal Grip’s droop-prevention fixture keeps the strip aligned—improving accuracy over traditional setups.

Procedure highlights: Bond substrates, allow proper dwell, peel at the specified speed, and record force vs. extension. Normalize data to sample width.

Key data to report: Substrate type, adhesive, conditioning, dwell time, peel speed, and fixture details.

Applications:

Packaging seals, labels, and protective films

Flexible electronics and composites

Laminated materials and coated fabrics

R&D, quality control, and production testing

Related Standards

ASTM D3330 – Pressure-sensitive tapes

ASTM D1876 – T-peel test

ISO 8510-1/2 – International peel methods (90° and 180°)

Pro Tips for Reliable Results

Control contamination: surface prep is critical.

Prevent droop: use counterbalanced fixtures for unbiased peel strength.

Condition samples to match end-use environment (temp/RH).

Learn more:
https://www.universalgripco.com/astm-...

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