PAINT SOLUTIONS
STEEL CORROSION

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o Solutions
>* Introduction
>* Adhesion Issues
>* Bio Degradation
>* Durability
>* Film Formation
>* Flexibility
>* Poor Substrates
>* Surface Irregularities
>Algal Growth
>Aluminium oxidation
>Bleeding
>Bleeding components from timber
>Blistering
>Blushing
>Chaulking of enamels
>Chaulking of wall paints
>Cracking
>Craquelé formation
>Craters
>Dirt collection
>Fish eyes
>Flaking
>Floating/Flooding
>Fungi
>Hazyness
>Holy days
>Insufficient adhesion
>Insufficient flexibility
>Insufficient hiding
>Insufficient layer thickness
>Insufficient Levelling
>Lifting
>Loss of gloss
>Peeling off of lacquers
>Peeling off of wall paints
>Pin holes
>Poor enemal hold out
>Sagging
>Salt deposit
>Saponification
>Soft paint film
>Weathering of timber
>White Blooming
>Wrinkling
>Yellowing
>Zinc salts
Sikkens: the right color

Symptoms

Corrosion is an electro-chemical process which transforms steel - influenced by oxygen and water - in iron hydroxyde (rust).

Cause

  • Bad pretreatment, e.g. failed to remove mill scale
  • Chemically polluted substrate
  • Insufficient dry layer thickness
  • Insufficient active corrosion resistance of applied products
  • Mechanical damage

Solution

Manual derusting (St 3) or blasting (Sa 2 1/2) in accordance with norm ISO 8501-1:1988. Than apply a fitting rust inhibiting paint system. Prime twice with [Redox EP Metal Primer]. Finish with two-component products: apply two coats of [Redox PUR Finish Gloss].