Overview
ISO 29862:2018 specifies standardized test methods for determining the peel adhesion properties of self‑adhesive tapes. It defines four core test methods (peel at 180°) plus two normative annexes that cover variations (low temperature tests and 90° peel angle). The standard is intended primarily for quality control and assessment of bond uniformity for pressure‑sensitive adhesive (PSA) tapes.
Key topics and requirements
- Scope and methods: The document contains Method 1 (peel from stainless steel, 180°), Method 2 (peel from the tape’s own backing, 180°), Method 3 (peel for double‑sided and transfer tapes, 180°), and Method 4 (liner‑to‑tape adhesion, 180°).
- Annexes: Annex A specifies variations for testing at low temperature; Annex B covers 90° peel testing.
- Test parameters: Methods define required materials, apparatus, sample preparation, test procedure, standard test conditions (typically 23 °C), expression of results, and test reporting.
- Definitions and terminology: Key terms such as peel adhesion, liner, double‑sided tape, transfer tape, open/closed side are defined (normative reference: EN 12481).
- Limitations: The standard notes that results are affected by backing stiffness, liner stiffness and backing stretch. It cautions that the methods are not suitable to:
- compare adhesion of tapes of the same type from different manufacturers (because peel force is not normalized for stress area),
- provide direct design performance data,
- reliably test tapes with very stiff backings/liners or high backing stretch (which increase variability).
Practical applications and users
- Who uses it: Tape manufacturers, QC/QA laboratories, R&D teams, adhesive formulators, converters, procurement/specification engineers, and third‑party testing labs.
- Why use it:
- Quality control of production lots and within/ between rolls,
- Verification of adhesive uniformity and batch consistency,
- Comparative assessment of bond strength to standard substrates (e.g., stainless steel) or to representative materials when substituted for the steel panel,
- Evaluation of liner release force for winding/unwinding handling.
- Notable use cases: Incoming inspection of tape lots, development of new adhesive formulations, supplier acceptance testing, and failure‑investigation where peel adhesion uniformity is relevant.
Related standards
- EN 12481 - Self adhesive tapes: terminology (normative reference in ISO 29862).
- ISO/TC 61 (Plastics) subcommittee SC 11 is responsible for the document’s development.
Keywords: ISO 29862:2018, self adhesive tapes, peel adhesion, peel test, double‑sided tape, transfer tape, liner adhesion, 180° peel, 90° peel, quality control.