Protective paint - Condursal Z1100
Protective Lacquer against Oxidation and Scaling CONDURSAL Z1100 provides very efficient protection against oxidation and scaling during austenitizing and annealing with oxygen present. It can be used for temperatures ranging between 600 and 1.100°C. It is suitable for many kinds of me...
Protective Lacquer against Oxidation and Scaling
CONDURSAL Z1100 provides very efficient protection against oxidation and scaling during austenitizing and annealing with oxygen present. It can be used for temperatures ranging between 600 and 1.100°C. It is suitable for many kinds of metallic materials such as constructional steels, tool steels, austenitic steels, castings and it withstands annealing times up to 7 hours and more.
Up to temperatures of approx. 850°C, the residues of CONDURSAL Z1100 pop off after heat treatment; hence no cleaning of the workpieces is necessary in this case.
After annealing at temperatures exceeding 850°C, light brushing with a steel brush is sufficient to
remove the residues and to provide clean surfaces (no sandblasting required).
How to use the protective paint for heat treatment?
Surfaces to be protected must be clean, free of oxides, scale, dust, rust, oil, grease and other
contaminants, which is normally achieved by either sandblasting or alkaline washing (formerly also
by vapor degrasing).
Prior to use, stir the contents of the CONDURSAL Z1100 tin thoroughly. After getting a homogeneous
consistency CONDURSAL Z1100 is ready for use. Application to the workpieces can be achieved by
painting, immersion or spraying. Normally, there is only one thin coating of approx. 15μm thickness
necessary for optimum protection.
It is important to provide a smooth coating of uniform thickness. Applying the paint in a layer of
excessive thickness may result in popping-off problems and thus should be avoided. For extended
annealing times a second thin coating is recommended. It should be applied not earlier than after
thorough drying of the first one has been accomplished. Drying time for each coating is about 10
Removal of residues
Once heat treatment is finished, the residues of CONDURSAL Z1100 pop off of their own or can be
removed easily using a steel brush (see above).
Tins of CONDURSAL Z1100 should be closed airtight after use to prevent the solvent of the lacquer
from evaporating. To clean brushes, spraying pistols and other equipment, the “SPECIAL THINNER
FOR CONDURSAL Z1100" or Xylene can be used but by no means water.
Summary of tips to get an optimal result with this paint for heat treatment:
1. Excessive thickness of the coating may result in popping-off and poor protection.
2. CONDURSAL Z1100 is not suitable for temperatures below 600°C; at such low temperatures it
behaves like a heat-proof lacquer leaving a black coating on the surface of the workpieces,
which can hardly be removed after annealing.
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