Varnishing and restoration of the floor are important activities if you want your floor to look good even after several years. We offer you a simple step-by-step explanation. It is not so difficult…
How to do it?
Varnishing wooden areas
You will achieve a perfect result if you follow all these steps. Place the appropriate section of wood (e.g. ) horizontally on the stands. Clean the area thoroughly and remove grease and dust.
First you should grind it with a sandpaper with granularity 180. Put a primer on the damaged places and smooth it with a varnishing spatula. When these areas are dry, grind it with a sandpaper again.
Now apply the primer (with a round brush) on every jut and edge. Don’t apply the primer in a too thick layer. It is best to apply it with a loose wrist. From time to time, rotate the brush around its axis.
At the end, apply the primer to all the remaining areas by a varnishing roller. When it is absolutely dry, use the sanding paper again (with granularity 280) and remove the dust.
Metal railings and fences Metal railings and fences are exposed to severe winds and corrosion. From new iron or steel, you have to remove a layer of greasy (by a thinner). Old and rusty iron or steel must be cleaned of rust with a wire brush or an abrasive cloth. Wipe the grinded area thoroughly. Rusty places must be treated particularly carefully so that the rust won’t appear again.
The area of a new metal must be firstly treated by an anti-corrosion primer. Before applying the primer on an old metal with no rust, you have to smooth the holes caused by rusting. When the area is dry, use the abrasive cloth to grind it (granularity 80).
Then there follows the second anti-corrosion primer followed by grinding (granularity 200).
For the final layer, you can use e.g. matte gloss or glossy paint for iron or steel. For other metals such as copper sheet, galvanized gutters, radiators… you should use specialised varnish.
Stick a textile tape on those pre-varnished areas (colour 1) which should stay unpainted by the second colour. Now use the second colour and then unstick the textile tape immediately. Use a smooth tape if possible.
When choosing the right brush, we can distinguish two basic kinds of brushes. Brushes with natural bristles and brushes with artificial bristles.
Natural Bristle Brushes
These brushes are used when treating a varnish containing diluent (coatings based on alkyd resin). These so-called Chinese bristles come mainly from Chinese pigs.
Artificial Bristle Brushes
For all the varnishes which can be diluted with water (acrylics, dispersants) these brushes are used. Natural bristles would absorb the liquid and it would be useless. Artificial bristles are more resistant. Smooth artificial bristles have crossed profile and on the top, they are cut – it affects the „right absorbing“ of colour.
When buying a brush, you should take these differences into account. Mark the brushes so you won’t switch them in the future.
If you ‘d like to get further information about brushes, check our article …
1 – flat brush, 2 – oval brush, 3 – round brush, 4 – varnishing brush, 5 – box for color
Before painting with a new brush, you should brush raw wood with a dry unsoaked brush until it stops losing the hair.
Tip for storage and taking care of brushes:
It is best to keep the brushes hung. Cleaner for brushes (thinner) won’t evaporate if you use a plastic cover. It is ideal for stoppage of work. When the work is finished, do not leave the brushes in a thinner, clean them and hang them instead. It is worth to invest more money into brushes in a good quality as if you treat them properly, they stay in a great function for years.
If you´d like to know more on the topic how to treat your brushes properly, check out our article Care of Brushes.
Stuff not to forget
- primer windows / door
- primer paint by usage
- varnishing spatula
- varnish for windows / door
- varnish by usage
- anti-corrosion primer
- cleaner for brushes
- sandpaper (180-280)
- abrasive cloth (180-280)
- sanding pad
- sanding sponge
- wire brush
- spatula / Japanese spatula
- round brush
- flat brush
- Brush by usage
- varnishing roller
- bowl for color
- box for brushes