The Right Surface Preparation Matters!
The right level of roughness enhances mechanical interlocking and increases the effective bonding area. Here’s a quick guide to ideal surface roughness (Ra) for different materials:
· Metals – 1.5 to 3.0 µm Ra
· Plastics – 0.5 to 2.0 µm Ra
· FRP & Composites – 2.0 to 4.0 µm Ra
A surface that’s too smooth may reduce adhesion, while excessive roughness can introduce weak points. Paying equal attention to surface preparation and adhesive selection ensures long-lasting bond performance.
Adhesives BondingStrength SurfacePreparation Manufacturing ElixirIndia
