What plaster to choose
for interior, plaster or cement? Every
investor faces such a question. The
answer is not obvious and depends on individual expectations and possibilities,
as well as on the destination of specific rooms.
What should you consider
when making your choice?
· The aesthetic effect that we want to
achieve: smooth, structural, rough or maybe mixed walls?
More smooth walls,
better rendering the colors of paints, we get using plaster plasters. In order to achieve this effect,
cement plasters will require filling the wall surface with plaster gypsum at
least twice. If you want a rough
surface, the obvious choice is cement-lime plasters. The structure is easier to achieve
thanks to gypsum or gypsum-lime plasters.
KNAUF - plasters for
interior walls
· Resistance to scratches and mechanical
damage
Cement-lime plasters are
usually more resistant to scratches than
gypsum plasters, but Knauf MP 75 L Diamant plaster plaster , thanks to a special recipe, does not
give way to cement-lime plasters in this respect, while maintaining the values of all plaster plasters.
· Indoor climate and indoor air quality
This is the main value
of gypsum plasters, which thanks to the gypsum's hygroscopic properties, absorb
moisture when the air is too moist and give off excess moisture when the air
becomes too dry. Thus, they
regulate the interior climate at the most human-friendly level. Thanks to this, we perceive such
interiors as warm and cozy.
· Reaction to indoor moisture
Cement-lime plasters
absorb moisture very slowly and very slowly give it to the environment, which
does not result in positive regulation of air humidity in standard rooms, but
it is an unquestionable advantage in rooms not heated in winter, partially
heated and intensively used, eg garages, basements, commercial buildings or
industrial kitchens or steam baths where the air humidity exceeds 70%.
· Time of investment implementation
It should be remembered how long the technological process of laying and drying plasters is going
on. Plaster plaster is applied in
one layer to the primed and dry substrate that dries daily, multi-layered cement-lime plaster is applied to the dried spray, which
dries on ceramic substrates for a few days and on concrete substrates, such as
2-3 weeks ceilings. 1.5 cm gypsum plaster dries for approx. Two weeks, cement
and lime plaster with the same thickness of approx. 4 weeks.
Therefore, the choice
of, for example, gypsum plaster for heated living spaces in the winter to
obtain smooth surfaces, pleasant interior climate and due to the shorter
completion time of the investment is as good as the choice of cement and lime
plaster for the garage and basement, and even for residential interiors, just
because we want to get industrial, rough surfaces, for example in fashionable
lofts. Of course, another
combination of our motivations is also possible in deciding whether to choose
one or the other type of plaster.
GYPSUM PLASTICS
If we are already
deciding on gypsum plasters, then we still have different products to choose
from. Which one is best to
choose? It again depends on the
specific circumstances and our further preferences.
Large areas and short
completion time
In this case, the
machine plaster plasters Knauf MP 75 and Knauf MP 75L are best, the second one
is slightly lighter and thus easier to process.
If we care about the
increased material efficiency, it is worth using Knauf MP 75 SL. Its consumption per m2 with a standard
thickness of 10 mm is only 7 kg . It brings about specific savings,
especially on large areas, which obviously translates into finances.
Necessarily plaster, but resistant to scratches
Here the choice is
unambiguous: Knauf MP 75 Diaman, which after laying and drying is the hardest
gypsum plaster available on the Polish market. Recommended especially for public utility buildings, where due to
the high volume of users' traffic , the walls are more vulnerable to
mechanical damage. It is also a
good choice for a home with small
children. This plaster is applied
by machine.
Necessarily plaster, but
not smooth
Knauf MP 75 LF Invoice
The architects overwhelm
the monotony of the recently fashionable, minimalist interiors by introducing
an invoice to them. This also
applies to walls. In the case of
gypsum plasters, each of them can not be smoothed in the last stage, but make
an invoice, imprinting in a moist plaster, for example, a trowel. We will achieve a more subtle visual
effect using Knauf MP 75 LF Invoice, which thanks to the content of limestone
aggregate allows to obtain a surface with a texture of fine sand. Surfaces can be painted multiple times
for any color, each time with a different color, without destroying the
invoice. Calcareous aggregate is
present in the whole plaster section.
Plaster for wall heating
We plan wall heating and
we do not know what plaster will work in this case. Of course, you will need a plaster that will conduct heat well
inside, and does not deform and crack under the influence of heat. Such features have Knauf MP 75 G / F Therm plaster and
plaster, thanks to a suitable recipe combining two minerals: gypsum and lime.
Plasters for renovation
KANUF - ROTBAND
KANUF - GOLDBAND
In a situation where it
is not possible to use a plastering aggregate or as a part of savings
renovation we carry out ourselves, you can reach for hand plaster plaster:
Rotband and Goldband. Rotband has
an increased adhesion parameter, which is why it is recommended especially for
non-absorbent concrete surfaces of ceilings or
elements made of precast concrete. Goldband
can be used on any rough substrate, but it works best as a renovation plaster.
CEMENT AND LIME PLASTERS
Cement-lime plaster
Knauf Cover Slow
If we decide on cement
and lime plasters, do not try to save on
the material, mixing cement and lime on the construction site.We will not be
able to obtain the same, repeatable quality of plastering mortar in the whole
building, which will be seen later on the walls and ceilings. The guarantee of repeatable quality is
provided by the factory-prepared dry mix of Knauf Cover Slow cement plaster,
containing laboratory proportions of ingredients defined in the production
process, strictly preserved in the production process. The plaster recipe has been formulated
so that it can also be applied by machine.
The final effect and
usability
Regardless of the choice
made, the final effect will
depend on adherence to the rigors of plastering technology. Remember to prepare the substrate
properly, prime it in the case of gypsum plasters, perform work at + 5 ° C and
properly ventilate the rooms until the plasters dry.
