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Mapei Kerapoxy, epoxy grout: the pack
Mapei's own picture. The pack we stock: 5 kg.

Mapei · Epoxy groutNo. 06 / 47

Kerapoxy

Two-component acid-resistant epoxy grout for joints of at least 1 mm. Can also be used as an adhesive.

Two-component acid-resistant epoxy grout for joints of at least 1 mm. Can also be used as an adhesive

  • Indoor and outdoor grouting of ceramic tile and natural stone floors and walls
  • Grouting floors and walls in the food industry (dairies, abattoirs, breweries, wine cellars, conserved-food plants, etc.), shops and areas where hygiene is required (ice-cream shops, butchers, fish vendors, etc.)
  • Grouting industrial floors and walls (electrical industries, tanneries, battery rooms, paper mills, etc.), where high mechanical resistance and resistance to acid attack is required
  • Grouting swimming pools; particularly suitable for basins containing salt or thermal water
  • Grouting tanks containing aggressive chemicals (purification plants, etc.)
  • Grouting ceramic tiles on laboratory benches, kitchen work surfaces, etc
  • Acid-resistant bonding of tiles (used as an adhesive in compliance with class R2T specification according to EN 12004 standard)
  • Bonding marble doorsteps and window sills
Class
RG · R2T
Consumption
By tile size and joint width
Pack we stock
5 kg
Colours
Grey · White

Related documentation

  • Technical data sheet

    Edition 141-9-2026 en (IT) · 10 pages · 2.2 MB · PDF

    DownloadOpen
  • Safety data sheet

    Sent by WhatsApp or email

    Request

Mapei's own document, unaltered, saved on 2026-11-05. Mapei revises its data sheets: ask us for the current edition before you specify.

Coverage calculator

The arithmetic uses Mapei's published consumption for Kerapoxy and the pack sizes we stock. Set your own wastage allowance.

m²
mm
mm
mm
mm
%

You need

1

x 5 kg kit

Data sheet quantity
3.2 kg
With 10% wastage
3.52 kg
Per square metre
0.16 kg/m²
Send this to WhatsApp for a quote

The figures behind it.

  • When Kerapoxy is used as an adhesive, consumption is 2-4 kg/m².

Mapei's formula for Kerapoxy: (A + B) / (A x B) x C x D x 1.6 = kg/m², with A and B the tile length and width, C the tile thickness and D the joint width, all in mm.

Consumption on site depends on the substrate, the tool and the applicator, which is why wastage is yours to set. The result is a quantity to plan and quote with, not a guarantee of coverage. Confirm the system against the current Mapei technical data sheet before ordering.

Application

In Mapei's own words, from the technical data sheet.

  1. 01Indoor and outdoor grouting of ceramic tile and natural stone floors and walls
  2. 02Grouting floors and walls in the food industry (dairies, abattoirs, breweries, wine cellars, conserved-food plants, etc.), shops and areas where hygiene is required (ice-cream shops, butchers, fish vendors, etc.)
  3. 03Grouting industrial floors and walls (electrical industries, tanneries, battery rooms, paper mills, etc.), where high mechanical resistance and resistance to acid attack is required
  4. 04Grouting swimming pools; particularly suitable for basins containing salt or thermal water
  5. 05Grouting tanks containing aggressive chemicals (purification plants, etc.)
  6. 06Grouting ceramic tiles on laboratory benches, kitchen work surfaces, etc
  7. 07Acid-resistant bonding of tiles (used as an adhesive in compliance with class R2T specification according to EN 12004 standard)
  8. 08Bonding marble doorsteps and window sills

Where it is not the right product.

  • Do not use Kerapoxy for grouting terracotta tiles because they are difficult to clean
  • Kerapoxy does not ensure perfect adhesion when used for grouting tiles with wet edges or contaminated with cement, dust, oil, grease, etc
  • For flexible expansion joints or joints subject to movement, use an elastic sealant from the MAPEI line (e.g. Mapesil AC, Mapesil LM)
  • Unglazed klinker tiles should be grouted with the same colour tone Kerapoxy. All other colours should be used only with glazed tiles
  • Do not add water or any solvents to Kerapoxy to make it more fluid

Specification

  • EN 13888 · RG
  • EN 12004 · R2T
  • ISO 13007 · R2T
  • ISO 13007 · RG
  • EMICODE · EC1 Plus
Mix ratio
component A : component B = 9 : 1
Consistency of mix
thick paste
Density of mix (kg/m³)
1,550
Pot life
45 mins.
Application temperature
from +12°C to +30°C
Open time (as an adhesive)
30 mins.
Adjustability time (as an adhesive)
60 mins.
Set to ligh foot traffic
24 h
Ready for use
4 days (10 days for basins and swimming pools). Times may vary according to the temperature.
Flexural strength (N/mm²)
31
Compressive strength (N/mm²)
55
Temperature in use
from -20°C to +100°C

Typical values as Mapei prints them in data sheet edition 141-9-2026 en (IT). They are not a specification for your project: the current Mapei data sheet is.

On site

Packs, mixing and storage.

We stock
5 kg
Mapei packaging
Kerapoxy is supplied, with mixing proportions carefully measured, in drums containing component A and bottles of component B to be mixed when using the product. The total weight of the units is: 10, 5 and 2 kg in total.
Mixing
component A : component B = 9 : 1
Storage
Kerapoxy can be stored 24 months in a dry place in original packaging. Store component A at a temperature of at least +10°C to avoid crystallisation which, however, can be reversed by warming.

Kerapoxy in Tanzania

Tell us the area. We will quote the job.

Sahihi is an authorized Mapei distributor in Dar es Salaam. Send the quantity of Kerapoxy you need, or describe the job and we will work it out with you.