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Wallpapering correctly - avoiding mistakes
It's me - your Ben from A.S. Create.
Today we're going to tell you how you can avoid the most common mistakes when wallpapering and save yourself extra work.
Questions during the wallpapering work
You have already wallpapered and questions have arisen? We will be happy to help you.
Rising seams
What do I do if the seams open?
Paper wallpaper
A possible cause for seams opening after wallpapering could be a blocked substrate, draught or too fast drying of the individual strips. If you use a dispersion adhesive additive (e.g. Ovalit T), please note that the softening time of the wallpaper will increase significantly.
If the surface is well prepared, standard paste brands are sufficient. For critical or heavy paper wallpapers, a special paste is recommended, in which case the soaking time must be adjusted.
To find out whether you need a longer soaking time for the wallpaper, we recommend the "inch stick method".
For this you need a folding rule and a watch.
Measure the width of the sheet when dry (53cm, 70cm or 1.06cm wide).
Paste the sheet as described on the insert, fold it and roll it up.
Then place the folding rule over the width of the pasted and rolled up roll. The width will be approximately 53.4 or 53.5. Repeat this step, looking at the clock. When the wallpaper has reached a width of 54 cm, this is the perfect time to put the wallpaper on the wall. After this method, you will know how long the wallpaper has to give way for the following strips.
Non-woven wallpaper
The cause could be an incorrect dosage of paste, draughts or an unsuitable surface for wallpapering.
Blistering
What should I do if bubbles form on paper or non-woven wallpaper?
One cause of blistering after wallpapering paper or non-woven wallpaper could be too short a soaking time (see also the inch stick method) or too little paste applied.
But even blocked off surfaces can lead to blistering.
Staining
What do I do if stains appear?
All wallpapers manufactured in our company are among the most tested products within the framework of the RAL-GZ479 quality assurance and thus meet the highest quality requirements. Consequently, we can guarantee the highest product quality as well as health safety.
A possible cause for the formation of stains may be a blocked or not properly pre-treated substrate. A possible residual moisture in the wall may cause a chemical reaction with the substrate, whereby the defect is not caused by the wallpaper itself. Mould can also develop from this faulty substrate treatment. Therefore, it must be carefully checked whether the treated wall meets the necessary requirements for wallpapering.
Furthermore, it can happen in a few individual cases that defective goods are sold despite ongoing checks and trial gluing.
These are machine-induced stains which are immediately visible. In this case, wallpapering should not be carried out.
Staining after drying
If no stains have appeared by the time a wallpaper is completely dry, then no more stains will appear from the product wallpaper itself. Then the cause must be sought elsewhere.
Translucent background
What do I do if the substrate is translucent?
Non-woven wallpapers use a non-woven backing as the backing material, which, in contrast to a paper backing, has a lower opacity. This means that the light transmission is lower than with paper wallpapers. For this reason, it is important to precoat the substrate with a white pigmented primer. Do not use emulsion paint for this, as it will block off the substrate.
On the back of our roll inserts, the procedure is described under point 2:
"The substrate should be neutral in colour, otherwise use a white pigmented primer."
A primer is also recommended for the substrate preparation of paper wallpapers, as it provides a good basis for wallpapering, consolidates the substrate and regulates the absorbency.
