10/08/2026
WHY SURFACE TESTING MATTERS
An adhesive that works perfectly on one surface may fail completely on another.
Even when two surfaces look similar, they may behave very differently.
Consider powder-coated metal.
Its texture, coating chemistry and surface energy can vary between suppliers, colours, finishes and production batches.
The same applies to plastics, painted components and composite materials.
That is why adhesive selection should not be based only on a general description such as “metal” or “plastic”.
Useful testing considers:
• The actual production surface
• Cleaning and preparation methods
• Application temperature
• Pressure and dwell time
• Heat, moisture and chemical exposure
• How the product will be handled in the field
Testing the real combination of label, adhesive, surface and environment can prevent expensive failures later.
The smallest component can become a major problem when hundreds, or thousands, of units are already in production.
Learn how LNI tests products for durability:
https://ap1.hubs.ly/H017T8X0
Product testing for durability is the foundation of LNI's reputation in nameplates, badges & labels. Learn about their two important testing methods here.