5300 netfix

5300 netfix

GP EN998-1
Flexible, grey cement based fiber reinforced glue-reinforcement plaster for installing polystyren plates, mineral fiber isolation boards and lamella plates
Fiber reinforced
Good adhesion
Mechanically durable

Detailed description


mira 5300 netfix is a dry mixture that after mixing with water is ready to use.

mira 5300 netfix is used for reinforcing insulation materials (such as facade-polystyrene boards, facade mineral wool boards etc) with the mira uninet fibreglass mesh as a part of the External Thermal Insulation Cladding System (ETICS). Suitable for reinforcing and rendering other substrates such as concrete, masonry, lightweight concrete and areated concrete. Suitable for use as a reinforcement render as well as adhesive in the miratherm ETICS.

After applying mira 5300 netfix, the following products can be used: 5370 silicone kratz, 5360 silicone reibe, 5335 quartz grund, decogranit and decoquartz.


Product description

A flexible, gray cement based fiber reinforced glue-reinforcement plaster for installing and reinforcing polystyrene plates, mineral fiber isolation boards and lamella plates. A miratherm product.


Pre-treatment of substrate

The surface of the polystyrene boards or mineral wool boards must be level. If necessary, the surface must be smoothed down and the dust removed.

The mineral substrates must be stable, dense, clean of dust, grease, oil, cement laitance and other similar substances. Salts, mold, algae and other factors that hinder adhesion must be removed or processed. Weaker parts of the substrate must be removed and repaired.



Absorbent substrates must be primed using mira 4180 primer. Other substrates must be moistened while using mira 5300 netfix. Mineral substrates must be rendered level before reinforcement.



The glue should me mixed in a ratio of 0,25 litres of of clean water to 1 kg of dry mixture. Let the mortar sit for 10 minutes and then mix it again thoroughly. The best result is achieved with a drill mixer. Then the product is ready for use.



The insulation boards must be covered with mira 5300 netfix using a notched trowel. The reinforcement net mira uninet is pressed into the wet mortar. Ensure at least 10 cm overlap between two strips of the net. Then the surface must be levelled.

The fibreglass mesh must not be visible from the mortar. Use the wet on wet method. The total layer thickness should be 3-4 mm. Before level reinforcement, the window profiles need to be reinforced, and the corners of openings should be reinforced diagonally.



The minimal air and substrate temperature is +6°C. Avoid too high temperatures and direct solar radiation.


Working time

The pot life of mira 5300 netfix is 2-3 hours. Do not apply mira 5300 netfix to larger surfaces that can me managed to be covered before the surface can form a skin, e.g. in 20-30 minutes.


Drying time

The adhesive is fully dry after about 2-3 days. The drying time depends on the air temperature, wind and air moisture. Cold and wet weather prolong drying time. While drying, the surface must be protected from rainfall and frost.


Working environment

The product contains cement. When mixed with water, an alkaline reaction will occur. Protect your skin and eyes. Keep away from children.

Reference the product safety datasheet.

R 36/37/38, S2, S22, S24/25, S26


Storage and transportation

Transport and store dry. Product will maintain technical specifications minimum 6 months from production date in unopened packing.


Areas of Application

Outdoor Areas
Outdoor Wall
Lightweight concrete
Aerated concrete
Cement render
Lime cement render
Mineral façade render
EPS foam
Mineral wool board


Walls (average): 4,5-5,0 kg /m²
Working Time and Temperature

Working temperature:

min 6-20°C

Working Time:

Fully dry: 2-3 days

Dimensions and packaging

25 kg bag


5300 netfix DS
Technical Data Sheet
5300 netfix DoP
Declaration of Performance
M1 Emission Classification
5300 netfix SDS
Safety Data Sheet

Related products

Mira 5370 silicone kratz 1,5mm 25g (front)
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Mira 5360 silicone reibe 25kg (front)
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5360 silicone reibe
Decorative silicone wax based render for walls. Used as a finishing render on different substrates both indoors and outdoors.
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 decoquartz 25kg (front)
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A mosaic render based on coloured quartz stone and wax. A decorative structural render for creating a finish on in- and outdoor walls. Weatherproof, can withstand high mechanical stress.
Mira decogranit 25kg (front)
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Packaging Details

ImageProductEANCodeX (mm)Y (mm)Z (mm)Neto Weight (kg)Bruto Weight (kg)Best Before (Days)
mira 5300 netfix, 25 kg5701914530007114502601002525.11365
5300 netfix