Peel and Delamination Strength Testing
topic
Peel strength testing of coated and laminated fabrics uses T-peel test per ISO 11339, 90-degree peel per ASTM D903, or 180-degree peel configurations on a tensile testing machine at 100 to 300 millimetres per minute crosshead speed, measuring the average peel force in Newtons per 25 or 50 millimetres width that characterises the inter-layer bond strength, with testing at ambient and elevated temperature verifying performance across the service temperature range.
Role
Provides the fundamental bond quality measurement for all laminated and multi-layer coated products that determines resistance to inter-layer separation during end-use mechanical stresses of bending, stretching, and abrasion, with minimum peel strength specifications being the primary acceptance criterion for lamination quality control and the first test conducted in any laminate troubleshooting investigation when delamination is observed in production or from customer complaints.