Finishing

Corrosion protection through powder-coating or spray priming

Powder-coating:

• Pretreatment: Thin film iron phosphate coating
• Powder coating primer from ND 2¼" to 25"
• Glossy (gloss level 70 – 90, 60° measuring angle)
• Smooth polyester resin binder-based powder coating
• Its constituents comply with the Food and Drug Administration (FDA) requirements of regulation 21 CFR 175.300 for direct contact with food
• Temperature resistance: from -76 F to +248 F
• Electrostatically conductive
• Color similar to RAL 7032 (pebble gray)
• Coating thickness on the outside: average layer thickness 55 µm
• Coating thickness on the inside: optically covered as temporary corrosion protection
   

Priming (spray painted):

• Generally used with tubing >ND25"
• Inner and outer priming
• Coating thickness: average layer thickness 45 µm
• Color similar to RAL 7032 (pebble gray)
• Inside and outside optically covered as temporary corrosion protection
   

More colors:

• Choose from more than 3,000 color and effect variations
• Final outside painting of tubing components and pressed components in a coating thickness of approx. 80 µm
   

Options:

• Structured coatings and high-gloss effects
• UV protection
• Inside of components free from overspray available at additional cost
   

Corrosion protection through hot-dip galvanization

• Tubing components described as “galvanized” are all hot-dip galvanized
• Hot-dip galvanizing to DIN EN ISO 1461
• Average layer thicknesses (minimum values) depend on the thickness of the steel:
  • <16 gauge:            45 µm
  • ≥16 to ≤11 gauge: 55 µm
  • ≥11 to ≤2 gauge:   70 µm
• Temperature-resistant to 248°F
• During hot-dip galvanization, irregularities may occur in the color and structure of the surface
   

Corrosion protection through electro galvanization

• E.g. for pull rings, air regulators, ball joints and other accessories
• Galvanization according to DIN EN ISO 19598 (Fe//Zn8//An//T0) colorless to iridescent color
• Layer thickness approx. 10 µm
• Temperature-resistant to 248°F