Question about Q3 filling

Hello everyone,

our house (timber frame construction) was finished inside with Fermacell boards, which were attached to the installation level using staples. After taping and filling (Q3), these staples can still clearly be felt as indentations when running a hand over them and, of course, can also be seen as small slits. There is now uncertainty as to whether this corresponds to the definition of a Q3 filling or if we fear that it will still be visible afterwards. The company that applies the wallpaper has therefore left again and says that everything - including the staples - must be completely smooth at Q3. The filler is of a different opinion. We would be pleased to receive some clear statements or further links here. Thank you very much in advance!

Is it really so hard to use a search engine? Just type in q3 Spachtelung and you will get tons of info.

Hello Mycraft,

"Thank you" for this answer. It's not like I forced you to respond. But regarding that: Yes, you find a lot. Especially, of course, standards on quality levels. However, they are formulated so generally that unfortunately they do not help me! But if you have a link that exactly answers my question...

Well, I'll put it this way... pictures say more than 1000 words... so please show your walls...

otherwise this information was found within 2 seconds:

"Under certain circumstances, the puttied surface must be sanded. Even with the quality level Q3, markings can occur under raking light. However, these are less pronounced than with the standard puttying Q2. For puttying according to quality level Q3 the increased requirements for flatness tolerances of DIN 18202, table 3, line 7 should be contractually agreed upon."

Source:
Puttying quality level Q3

Addendum...

Accordingly, Q3 is only a "slightly" better Q2 and I think your explanation will be fine... for absolutely smooth walls, you would have had to order Q4... but first show the pictures, then we can say more...

There is a clear definition of the quality levels.
Q1: filling the joints and screw holes
Q2: like Q1, with wide filling of the joints, approx. 30cm
Q3: like Q2 and additionally tight smoothing of the entire surface to close the pores
Q4: like Q3 and filling the entire surface about 2-3mm thick.

With Q3, no marks should be visible in raking light and it is sufficient for wallpapering with non-woven wallpaper.

Regards