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FAQ – Frequently Asked Questions

What is the difference between AURO products and other natural paints?
AURO manufactures all its products itself in accordance with rigorous ecological principles using raw materials of purely vegetable or mineral origin only. Constant raw material and quality control ensure this high ecological standard. Read more about this subject ...

Are AURO paints as good as synthetically produced paints?
AURO paints are state-of-the-art. As regards their application and durability they are as good as most synthetic paints. Certificates from independent institutes prove their high technical quality.
AURO Aqua Woodstain No. 160 was nominated test winner by the German “Stiftung Warentest” (Organization for the Comparative Testing of Consumer Goods, issue 05/2006, test on wood stains), which certified that the product's quality is higher than that of known brands of conventional manufacturers.  See "certificates"

Are AURO paints more expensive than conventional products?
Many of our products are not more expensive per square metre of painted surface than conventional products, and are of the same quality. Several of the natural raw materials we use (instead of cheaper petrochemical ones) and smaller production units (instead of serial mass production) have their price though.
When comparing prices, however, you should always consider not only the base price per litre but also the product's coverage.

Can you mix all RAL and NCS colour shades from AURO paints?
Many of these colour shades can be mixed, and we offer the production of special colour shades as a service (at a surcharge). Certain colour shades, however, for example signal yellow or flame red, can only be obtained with synthetic substances. As we do not compromise on our ecological principles we can only offer colour shades which can be mixed with mineral or vegetable pigments.

Are AURO paints odourless?
Even paints made of natural raw materials are not entirely odourless.
For example, the essential oil which is used in wall paints to prevent skinning or as a solvent is characterized by its intense fragrance. Many customers adore this typically fresh Christmassy odour, whereas others are slightly more susceptible to it.This is why it is important, also when applying natural paints, to aerate rooms during application and for some time afterwards. Tip: Products from our Aqua range are relatively odour-free. They are 100% solvent-free. 

Which product can I use without hesitation for the treatment of wooden toys or cribs?
You'll be on the safe side with AURO because our products have been tested in accor dance with DIN EN 71, part 3: 'safety of toys', and DIN 53160: 'saliva and perspiration-proof'. 

What is the difference between AURO Aqua products and pseudo natural paints like those which bear the German "Blue Angel" eco-label?
As opposed to products which bear the "Blue Angel” or other water-thinnable products, AURO Aqua products contain a natural resin/oil binder (instead of synthetic binders) and are free from solvents, preservatives and glycols. AURO is the only manufacturer to provide 100% solvent-free, water-thinnable products which are neither synthetically bound nor preserved.

Why does AURO not label any products "suitable for allergic persons"?
The increasing number of illnesses caused by allergies has shown that there is virtually no substance to which humans might not be allergic.
This is why we consider the generalized labeling of products as "suitable for allergic persons" to be misleading. Thanks to our declaration of ingredients, however, allergic persons are able to find out whether the product contains an ingredient which may cause an allergic reaction.

Why is it necessary to protect the containers of AURO products which contain water from frost?
Water-thinnable systems may freeze, which usually destroys the emulsion. Unfortu nately such products can then no longer be used.
A coating test shows: if the paint can be applied as usual and cures within the normal drying time, nothing has happened.

What is "excess material"? Why do I have to remove the "excess material" in time when using AURO oils/impregnations?
The "excess material" is oil (or impregnation) which has not penetrated the wood following application. This excess material must be removed about 15 minutes after application with a non-fluff cloth or kitchen roll. This is the most frequent application mistake, even though this important note is found on all the labels.

Why should I not crumple up used cleaning rags? 
Drying oil in used cleaning rags may inflame if air is withdrawn and cause fires. This is why used rags must be dried in the air after work and disposed of together with do mestic waste when dry.

How long can AURO products be stored?
Generally, our products have an almost unlimited shelf life if they are stored in a cool but frost-free place. Longtime experience has shown that even products that have been stored for a very long time can be used by our costumers without any problems. Legislation does not require the indication of a storage stability period of a best-before date. Nevertheless, due to a contractual agreement with our insurer, we mention the storage stability period on the labels. However, this period has nothing to do with the actual usability of the product. The indicated storage stability period starts withe the purchase of the product and, as a rule, it will be surpassed by far. In case of doubt, an odour test will show if the product can still be used although it was stored for a long time. Also if the product can be stirred up as usual without showing visible anomalies, there ist every indication that it can still be used. Finally, usability can be ascertained beyond doubt by means of a test application that is examined after drying.