4140 contact primer

4140 contact primer

A two component contact primer for creating an adhesive layer on non-absorbent substrates before the application of a self levelling compound, repair mortar, waterproofing, tile adhesive or other similar product.
Rapidly hardening
Very good adhesion
Prevents air bubbles
Closes pores
Guarantees good adhesion
Acryl, quick-setting cement and quartz based
Requires covering

Detailed description


Used to create an adhesive layer on non-absorbent surfaces before the application of a levelling compound, repair mortar, waterproofing membrane, tile adhesive etc.

4140 contact primer is available in a 10 kg plastic bucket.


Product description

A two-component water based primer that contains a polymerous binder and a powder hardener.


Application areas

mira 4140 contact primer is a two-component primer, consisting of a binder and a hardener. Always use in the correct ratio and as a concentrate. The product cannot be mixed with other substances or diluted. The hardened surface must always be covered.


Type of substrate

Adheres to most non-absorbent substrates like polished concrete, glazed and unglazed ceramic tile, terrazzo, epoxy and painted surfaces. Can be used on stainless steel but only indoors.


Pre-treatment of substrate

The substrate must be coherent and clean. Cracks, holes and imperfections but be filled with cement mortar. The substrate must be cleaned of dirt, oil, grease, loose particles of paint or glue etc.



Before priming, the substrate must be prepared and sufficiently dry for the primer to adhere to it. Oil and grease must be removed from the substrate, warm water and a pressure washer can be used to achieve the best result.

When the binder and hardener are thoroughly mixed, apply 4140 contact primer to the substrate with a brush or a broom. The mortar must be worked thoroughly into the substrate, in order to achieve good contact. Further surface treatment can begin after 2-3 hours of drying. After finishing the job, clean the tools immediately.


Working environment

Product is not subject to REACH registration. Working hygienic rules must be followed. Reference to safety data sheet.


Storage and transportation

Store and transport frost free and dry.

The product keeps technical specification minimum 12 months after production date in unopened packaging.

Can be used hereafter; technical properties may, however, change; e.g. setting time may be extended.


Areas of Application

Indoor Areas
Indoor Floor
Indoor Wall
Wet Room
Dry room
Outdoor Areas
Outdoor Floor
Outdoor Wall
Levelling compound
Ceramic tile
Polished concrete
Natural stone
Stainless steel (indoors)


Average: 0,5-0,8 kg /m²
Working Time and Temperature

Working temperature:


Working Time:

Further treatment: 2-3 h

Dimensions and packaging

10 kg bucket


4140 contact primer DS
Technical Data Sheet
4140 contact primer SDS (B)
Safety Data Sheet
Component A (powder)
4140 contact primer SDS (B)
Safety Data Sheet
Component B (liquid)
4140 contact primer SDS
Safety Data Sheet
Mixed product
Terraces and balconies

Packaging Details

ImageProductEANCodeX (mm)Y (mm)Z (mm)Neto Weight (kg)Bruto Weight (kg)Best Before (Days)
mira 4140 contact primer, 10 kg57019144140005041402702602601010.35365
4140 contact primer