5370 silicone kratz

5370 silicone kratz

Decorative render
Decorative silicone wax based render for walls. Used as a finishing render on different substrates both indoors and outdoors.
Easy to use
Diffusion opened
Rough structure
Water repellent
Mold and microorganism repellent
White, tintable, reference the mira colour card

Detailed description


5370 silicone kratz is used as a finishing layer for various substrates on inner and outer walls.

5370 silicone kratz is a part of the miratherm External Thermal Insulation Composite System (ETICS). The product is used as a finishing render on top of a mira 5300 netfix reinforcement layer.

The product is ready to use. During hot weather or when spray rendering, a little bit of water can be added if necessary, although not more than 3%.


Product description

Silicone wax based decorative render for inner and outer walls.


Pre-treatment of substrate

The substrate must have carrying capacity and be clean and free of dust. Salts, mold, algae and other factors that hinder adhesion must be removed or processed. Weaker parts of the substrate must be removed and repaired. The substrate is primed with mira 5335 quartz grund primer.

Mineral substrates as well as mira 5300 netfix must be let dry for at least 48 hours before the application of 5335 quartz grund. In wet and cold weather, let dry for longer. Polymerous substrates must be fully dry before mira 5335 quartz grund can be applied.

mira 5335 quartz grund must be tinted to be the same colour as the finishing render, in order to avoid the primer from being visible from beneath the render.

If mira 5300 netfix has been left uncovered for an extended period of time, the soiled surface must be cleaned using appropriate facade cleaning products and a pressure washer. Let the surface dry and then cover with mira 5335 quartz grund.



mira 5370 silicone kratz is a ready-to-use finishing render. The mortar must be mixed thoroughly before use. If necessary, a small amount of water can be added in order to make the product better to work with, although not more than 3%. Adding water may be useful during hot weather or when spray rendering. Ensure that the same amount of water is added evenly to all buckets to avoid tonal differences.

mira 5370 silicone kratz is applied to mira 5300 netfix or other substrate that is primed with mira 5335 quartz grund.

The product is applied with a stainless steel reamer. Excess product is removed, leaving exactly a one grain thick layer. The excess mortar is mixed back into the bucket. Directly after application, the surface should be worked with a plastic reamer to achieve the desired structure.

It is not recommended to apply the decorative render to too large of an area at once, because the surface must be worked with the reamer before the render can dry. The render can be given texture during about 15-30 minutes after application.

Clean the tools immediately after use with water. If the product gets on other decorative surfaces, clean them with water immediately.


Drying time

The render is touch dry after about 30 minutes in +20°C/65 % conditions. The exact drying time depends on the air temperature, wind and air moisture. The render is fully dry after 2-3 days. Cold and wet weather prolong drying time. While drying, the surface must be protected from rainfall and frost.



The minimal air and substrate temperature is +6°C. Avoid too high temperatures and direct solar radiation, if necessary, use scaffold sheets.



The render can be washed with a pressure washer and facade cleaning products if necessary. If desired, the render can be painted with silicone facade paint.


Working environment

Normal safety precautions when working with products containing chemicals must be followed.



25 kg plastic bucket.


Storage and transportation

Transport and store dry and safe from frost. Product will maintain technical specifications minimum 24 months from production date in unopened packing.

Areas of Application

Outdoor Areas
Outdoor Wall
Gypsum board
Cement render
Lime cement render
mira 5300 netfix
Polymer plaster
Mineral plaster


Application Instructions

Ready to use finishing render. Before use, stir the mixture thoroughly with a cement mixer. During hot weather or when spray rendering, a little bit of water can be added, although not more than 3%. Apply the substance with a stainless steel scrubber. Excess substance should be removed, leaving the layer exactly the thickness of the grain. Excess mortar should be mixed into the mortar in the bucket. Directly after applying the plaster to the surface, work the surface with a plastic scrubber to achieve the desired structure. During drying time, protect the surface from rainfall and frost. If the render gets on other surfaces, clean them with water immediately.


Walls (average): 3,0 kg /m²
Grain Size
1,5 mm
2,0 mm
Working Time and Temperature

Working temperature:


Working Time:

Dry to touch: 30 min
Fully dry: 2-3 days

Dimensions and packaging

25 kg bucket


5370 silicone kratz DS
Technical Data Sheet
5370 silicone kratz DoP
Declaration of Performance

Related products

Mira 5335 quartz grund 10L (front)
5335 quartz grund
Primer containing quartz powder. For priming the substrate before the application of polymer, silicate or silicone finishing plasters.
Mira 5300 Netfix 25kg (+d22)
5300 netfix
Flexible, grey cement based fiber reinforced glue-reinforcement plaster for installing polystyren plates, mineral fiber isolation boards and lamella plates

Packaging Details

ImageProductEANCodeX (mm)Y (mm)Z (mm)Neto Weight (kg)Bruto Weight (kg)Best Before (Days)
mira 5370 kratz silikoon, 2,0 mm, 25 kg570191455701153702SIL2703303302525.7730
mira 5370 kratz silikoon, 1,5 mm, 25 kg5701914557004537015SIL2703303302525.7730
5370 silicone kratz