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Metal coatings TESSAROL


Metal objects, painted with vivid and original colour shades give glow, warmth, variety and attraction to rooms, they change boring constructions into interesting sculptures. Metal also have limited life span. The biggest enemy to metal objects based on iron, that prevail in urban environment are water and air. Therefore it is necessary to protect iron objects, prior to final treatment with basic corrosion coating, which prevents rust. We apply to the surface, protected against rust top paints or enamels, which give the desired decorative effect to the surface – colour shade and gloss level – that protect it against the exterior influences.
For exterior use coatings with gloss are more appropriate, which are resistant to atmosheric influences, for interior use gloss and matt enamels are suitable. In Helios we produce universal enamels for metal and wood TESSAROL. They are distinguished for good hiding power, quick drying, easy use, possibility of selection between several colour shades and suitability for use in interior rooms and in the exterior.

Basic instructions for correct and efficient painting

Basic conditions:

  • Choose a nice day without rain and fog for painting, as high air humidity has bad influence on drying of paint;
  • Do not paint objects in the morning, when there are dew rests on them, wait until they dry and warm up to environmental temperature.


Surface preparation:

  • Remove grease and similar impurities with a suitable cleaner or thinner;

  • Remove old crumbly paints completely mechanically with paint removers or heat;

  • Clean paint, which you want only to refresh and slightly polish it.


Iron, steel surfaces:

  • Remove rust from iron and steel surfaces; the best method is mechanically – by sanding or polishing;

  • If you remove rust with chemical agents on basis of acid (phosphor) you have to rinse the surface thoroughly with water, dry and only then you start with painting (if you use solvent-based paint) as the agents' rest prevent drying.


Zinc coated sheet metal, hard PVC plastic:

  • Clean surface from corrosion products with the mixture of water (10 l), ammoniac (ammoniac solution – 0,5 l) and detergent (one cap) and sand with sanding cloth made from synthetic fibres. Rinse sanding rests thoroughly with water. The use of wire brush and metal wool is not allowed.


Copper, brass and aluminium substrate:

  • Clean surface with NITRO thinner and sand with sand cloth made from synthetic fibres. Use of wire brush and metal wool is not allowed.


Selection of paint and important instructions for work:

  • The correct stain for the product, which you want to paint and for the exposed conditions you choose by means of instructions on our web site or on the packaging;

  • Paint old paint with the same type of paint;

  • If necessary apply several coats, use paint of the same producer for all coats;

  • Make a test on the small part of old paint prior to painting if the new stain does not dissolve or soften the old one;

  • Prior to painting of aluminium substrate an adhesion test in advance to clean surface is necessary;

  • Do not mix paints of different qualities among themselvces, even if they are from the same producer;

  • Mix paint thoroughly prior to application of each coat;

  • Thin paint only if it is necessary for the selected application method (e.g. spraying), use thinner as prescribed in the instructions;

  • Wash used tools immediately after use with thinner (solvents-based paint) or water (water-based paint) and dry them;

  • Apply paint in several thin layers in time intervals,stated in the instructions;

  • The most suitable way for painting is in a horizontal position;

  • Start to paint fixed objects from back to front and from down upwards;

  • At the painting of larger surfaces you have to paint the complete surface at once – do not interrupt work;

  • Pour paint, which you have not used up in a suitable small packaging and close it tightly;

  • At painting with TESSAROL Antique for improvement of coating's resistance to mechanical stresses paint the surface additionally; exterior with TESSAROL lacquer for boats, interior with TESSAROL lacquer (matt);

  • At painting with TESSAROL paints on basis of water-based binders (acrylic):

- In the instructions for work (on the packaging) temperature is stated, at which the coating film will still be built (limit values);
- use suitable tools for water-based paints;
- paint should not freeze;

  • Some colour shades, which are in computer programme for mixing system HELIOMIX marked with *, have due to their composition a worse hiding power; at their use we recommend the use of a base coat – paint of the same quality, that is already tinted in the selected colour shade, yet less intensive. (you can get detailed instructions with the seller or you turn directly to our experts.
     

Defects   Reasons for defects
Bad paint adhesion   Badly cleaned surface, presence of grease, rust and paint remover rests.
Rust   Base paint was not used.
Bad paint levelling, traces of a brush   Too thick paint, unsuitable thinner, softening of low layer, too high temperature.
Rough surface   Leaving out intermediate coat sanding.
Soft and not resistable end layer   Too quick application of individual coats.
Bad hiding power and unsuccessful protection   Too thin paint application, too thinned paint.
Longer drying, matted appearance and orange structure   Painting at too high or too low temperature and air humidity, use of unsuitable thinner.
Paint will coagulate   Non use of the recommended thinners.
Paint will not dry   Not rinsed chemical paint removers, too high humidity and too low temperature.
Porous surface   Thin paint layer, painting with too thinned paint.
Cracking of paint, hair-formed cracks and wrinkles   Application of unthinned paint in one thick layer.
Peel off   Dirty tools, badly cleaned surface, non use of basic paint.
Visible hollows under paint   Unrepaired damages on surface.
Appearance of clods on surface   Dirty tools, badly cleaned surface, non use of basic paint.
Matted appearance   Use of wrong thinners, bad working conditions / weather.
Bad coverage   Too thinned paint, too thin layer, leaving out use of basic paints with colour shades with worse hiding power.


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