Surface
What is the surface material, and is it clean, dry, smooth, porous, rough, coated or oily?
Selection Guide
Self Adhesive Pins vs Weld Pins
Self adhesive pins use an adhesive base and are considered when welding is not required or not practical on a suitable surface. Weld pins require welding equipment and a metal surface suitable for welding. The right choice depends on surface material, load, temperature, insulation thickness, installation tools and project requirements.
Comparison Table
| Dimension | Self Adhesive Pins | Weld Pins |
|---|---|---|
| Installation method | Adhesive base, no welding required | Requires welding equipment and process control |
| Suitable surface | Clean, dry, smooth and non-porous surfaces | Metal surfaces suitable for welding |
| Strength condition | Depends on adhesive, surface condition, load and temperature | Usually stronger when welded correctly, but still project-dependent |
| Typical reason to consider | Quick installation where adhesive fixing is suitable | Industrial or stronger fixing requirements on weldable metal surfaces |
| Buyer should confirm | Surface, load, temperature, insulation thickness, pin length | Material, welding process, pin length, insulation thickness, project requirements |
When to Consider Self Adhesive Pins
- The surface is clean, dry, smooth and non-porous.
- The project does not require welding or welding is not practical.
- The buyer can confirm surface condition, insulation thickness and expected load.
- The pin will be used with suitable self locking washers or dome caps.
When to Consider Weld Pins
- The fixing surface is metal and suitable for welding.
- The project requires stronger or more permanent fixing.
- The buyer has welding equipment or a qualified installation process.
- The load, temperature and installation environment make adhesive fixing unsuitable.
This page does not make an absolute strength claim. Welded fixing may be stronger when done correctly, but project conditions still need confirmation.
Buyer Checklist Before Choosing
Insulation
What insulation material and thickness will be fixed, and what pin length is required?
Project Conditions
What load, temperature, installation method and packaging requirements should the supplier consider?