Q: How to store anodes and spheres?

Store in dry environment (humidity <60%), room temperature, away from heat sources. Tin is stable and does not deteriorate if stored correctly. Avoid prolonged contact with aggressive surfaces.

Question 1

What tin purity is needed for food applications?

Accepted Answer

For food contact applications, 99.9% minimum pure tin is required, compliant with European directives for food contact materials. Our pure tin is certified and traceable for this use.

Question 2

How long do tin anodes last?

Accepted Answer

Duration depends on current density, anodic surface and production intensity. Typically an anode can last from 1 to 6 months in continuous production. We recommend replacing them when about 30% of the original mass remains.

Question 3

Do spheres need to be bagged?

Accepted Answer

In acid baths yes, use polypropylene bags to retain anodic sludge. In alkaline baths no, spheres can be used directly in the bath.

Question 4

Which sphere diameter to choose?

Accepted Answer

Ø15mm: Small baths, laboratories, reduced production. Ø25mm: Medium plants, good compromise (most common). Ø40mm: Large industrial plants, maximum duration.

Question 5

Difference between extruded and rolled tin?

Accepted Answer

Extruded anodes: Extrusion process, round or elliptical geometries, good uniformity. Rolled anodes: Rolling process, plate geometry, excellent for tanks with vertical supports.

Question 6

Can I use low-lead tin for electronics?

Accepted Answer

For RoHS-compliant electronics, 99.9% pure tin is required. Low-lead tin (<1% Pb) is only usable for industrial applications not subject to RoHS.

Question 7

How to store anodes and spheres?

Accepted Answer

Store in dry environment (humidity <60%), room temperature, away from heat sources. Tin is stable and does not deteriorate if stored correctly. Avoid prolonged contact with aggressive surfaces.

Element	Max Content	Standard	Application
Sn (Tin)	99.90% min	Purity	Virgin primary tin
Pb (Lead)	0.015%	Max	RoHS compliant
Cu (Copper)	0.008%	Max	Typical contaminant
Fe (Iron)	0.007%	Max	Metallurgical residue
As (Arsenic)	0.005%	Max	Below RoHS limit

Characteristic	Traditional Anodes	Tin Spheres	Advantages
Active Surface	Fixed, decreases with use	Optimal, spherical shape	Spheres guarantee constant surface
Maintenance	Periodic replacement and cleaning	Simple top-up	Reduced operating costs
Dissolution	May be irregular	Uniform and controlled	Superior deposit quality
Anodic Sludge	Possible accumulations	Minimal	Reduced bath maintenance

Tin Anodes and Pure Tin Spheres

Why Choose Our Tin Plating Materials

Our Tin Plating Materials

Technical Specifications and Quality Control

Application Sectors

Anodes or Spheres: Which to Choose?

Frequently Asked Questions about Anodes and Tin Plating Materials

Request Information or Quote

Request Information