DisboXID 421 2K-EP-Beschichtung Premium

All-round 2-component liquid epoxy resin coating, pigmented, for floors in nearly all areas. Emission-minimised, technically controlled and supervised (TÜV).
Free from benzyl alcohol and alkyl phenol.

Field of Application

Due to the emission-minimised, ecologically compatible formula, particularly suitable for all »sensitive/delicate« areas, as e.g. lounges, hospitals, nurseries, play schools, schools, etc. For mineral floorages resistant to a wide range of mechanical loads (low to extreme), as e.g.
lounges and cafeterias
production and warehouse areas with forklift traffic
offices and administration areas in general 
corridors, warehouse areas, selling-rooms
beverage industry, tinned/canned food industry
canteen kitchen
butcher shops, slaughterhouses, bakeries, etc.
pigmented finishing coat within the
Disboxid Parking Garages System OS 8 E.MI II.

Tested according to the AgBB testing criteria for VOC emissions from building materials used in interior areas. The criteria of the AgBB (Ausschuss zur gesundheitlichen Bewertung von Bauprodukten; Commission for the sanitary evaluation of building material) are elaborated by the ecological and sanitary authorities for the use of building material in »delicate/sensitive« areas, as e.g. lounges.

Material Properties

  • Emission-minimised.
  • Tested as to harmful substances by  German Technical Control Board (TÜV)
  • Free from benzyl alcohol and alkyl phenol.
  • Can be variably used as roller applied and flow coating, self-levelling (flow)  mortar and sand-treated "scatter” coating (strewn with quartz sand). Thus adaptable to mechanical loads.
  • Good chemical resistance.
  • Weather-resistant.
  • Tested for use in the area of food processing.
  • Can be highly filled with quartz sand.
  • Stress resistant up to 150 °C in dry state and up to 40 °C in wet state, also short-time resistant to a higher stress (e.g. caused by steam cleaning).

Material Base / Vehicle

2-component epoxy resin, solvent-free, total solid (as per Deutscher Bauchemie / German Construction Chemicals)

Packaging/Package Size

3 kg, 10 kg tin-combi-packaging, 30 kg bucket (Base material: 25.2 kg tin hobbock, Hardener: 4.8 kg tin bucket)
10 kg tin-combi-packaging, 30 kg bucket (Base material: 25.2 kg tin hobbock, Hardener: 4.8 kg tin bucket)


 ■ Standard:
30 kg bucket: Gravel Grey (Kieselgrau), Stone Grey
(Steingrau), Light Grey (Lichtgrau)
10 kg bucket: Gravel Grey (Kieselgrau), Stone Grey
3 kg bucket: Gravel Grey (Kieselgrau)
Special tints available on request
Over 3,800 colour shades are available in the ColorExpress stations. Exclusive colouring is possible due to color shades of the FloorColor plus collection. Depending on the shade, base white or base transparent can be mixed via ColorExpress stations.

Discolouration and chalking effects may occur with weathering and UV light exposure. The pigmentation in, e.g. coffee, red wine or leaves (organic dyestuffs) and various chemicals, e.g. disinfectants, acids, etc., may cause discolouration. The functional capability of the coating will not be affected by these changes.

Gloss Level



Cool, dry and frost-free.
Tightly closed original packaging has a minimum shelf life of 2 years. If temperatures are low, the material should be stored at 20 °C before application.


approx. 1.6 g/cm³

Dry film thickness

approx. 62 µm/100 g/m2

Abrasion to Taber (CS 10/1000 U/1000 g)

approx. 26 mg/30 cm2

Pendulum hardness to König

approx. 192 seconds

Compression strength

approx. 94 N/mm2

Chemical resistance

Chemical Resistance Table according to DIN 53 168 at 20 °C
7 Days
Acetic acid 5 % sol.+ (D)
Acetic acid 10 % sol.+ (D)
Hydrochloric acid 10 % sol+ (D)
Sulphuric acid < 10 % sol+ (D)
Sulphuric acid 20 % sol+ (D)
Citric acid 10 % sol+
Ammonia solution 25 % sol+
Calcium Hydroxide+
Caustic potash solution 50 % sol+
Caustic soda solution 50 % sol+
Ferric (III) chloride solution, saturated+ (D)
Lysol solution 2 % sol+ (D)
Magnesium chloride solution 35 % sol+
Distilled water+
Common salt solution, saturated+
White spirit (solvent naphta)+
Benzine (Petroleum ether) / cleaning solvent+
Xylol (xylene)+ (D)
Etanol (ethyl alcohol)+ (D)
Benzine acc. to DIN 51 600 (fuel/petrol/gasoline)+ (D)
Premium gasoline+ (D)
Kerosene+ (D)
Heating amd Diesel fuel+
Motor oil+
Coca-Cola+ (D)
Coffee+ (D)
Red wine+ (D)
Skydrol (hydraulic fluid/medium/oil)+
Transformer coolant+
Legend: + = Resistant, D = Discolouration

Garages System OS 8 E.MI II: Please follow the System Data Sheets.

Suitable Substrates

All types of mineral substrates.
The substrate must be sound, dimensionally stable, solid, free from all materials that may prevent good adhesion, e.g. loose/brittle materials, dust, oils, fats/greases or abraded rubber (skid marks). Cementitious flow mortars, ameliorated with synthetic resin, must be checked for suitability by trial application, if necessary.
The adhesive tensile (pull-off) strength of substrates must be 1.5 N/mm2 on an average, with a minimum individual value of 1.0 N/mm2. Equivalent-humidity must be achieved for the substrates:
Concrete and cement-based composition
floor (screed) max. 4% by weight
Anhydrite screed max. 0.5 % by weight
Magnesite screed 2 – 4 % by weight
Xylolithe screed 4 – 8 % by weight
(Magnesium Oxychloride screed)
Rising damp/moisture must be avoided. In case of anhydrite and magnesite screeds, complete sealing from contact with the ground is essential.

Substrate Preparation

Prepare substrates by suitable means, e.g. grit blasting (shot peening) or milling, in order to fulfil the above mentioned requirements. 
Always remove existing 1-component coatings and loose 2-component coatings. Vitreous surfaces and rigid 2-component coatings have to be cleaned, abraded or shot-peened (to achieve a mat surface) or be primed with Disbon 481 EP-Uniprimer. Repair spallings and defects with Disbocret® PCC mortars or Disboxid EP mortars, filling defects flush with the surface.

Preparation of Material

Add the hardener to the base material and stir intensively with a low-speed electrical paddle (agitator; max. 400 rpm) until a homogeneous shade without streaks is achieved. Pour the mixture into another container and continue stirring.

Mixing Ratio

Base material : Hardener = 84 : 16 parts by weight

Method of Application

Depending on the application with short to medium pile roller, smoothing trowel or suitable coating knife/wiper/scraper (e.g. notched hard rubber scraper).

Advice: When application is effected with a V-notched trowel/scraper, the selected triangular notching does not automatically lead to compliance with the given values.

Surface Coating System

Priming Coat
Prime mineral substrates with Disboxid 420 E.MI Primer filling all pores. Rough-textured substrates must additionally be equalised with a scratch filling (mixture consisting of primer and quartz sand). For detailed information, see Technical Information No. 420. 
As per requirements the following materials
can alternatively be used
Disboxid 461 EP-Grund TS
Disboxid 463 EP-Grund SR
Disboxid 961 EP-Grund
Detailed Information: see corresponding T.I. When using the alternative primers a continuous surface coating system in accordance with AgBB testing criteria cannot be achieved.

Finishing Coat

Rolled coating

Smooth surface: Pour Disboxid 421 E.MI Coat evenly on the primer (must not be quartz sand treated) with a medium pile roller. Depending on expected loads and required coat thickness one or two work steps are necessary. The high coating thickness (two work steps) can also be achieved with only one work step. For this pour the material onto the surface to be primed and spread evenly with a smooth hard rubber wiper/scraper. Then treat the surface cross-wise with a medium pile roller.

Anti-skid/slip surface (q.v. system versions of anti-slip property testing):
Pour Disboxid 421 E.MI Coat on the priming coat, treated/strewn with Disboxid 943 Einstreuquarz (0.4 – 0.8 mm) or Disboxid 944 Einstreuquarz (0.7 - 1.2 mm) and spread evenly with a smooth hard rubber wiper/scraper. Then treat the surface cross-wise with a medium pile roller.

Flow coating with smooth surface
Pour Disboxid 421 E.MI Coat on the priming coat, treated/strewn with Disboxid 942 Mischquarz (0.1 - 0.4 mm) and spread evenly with a notched hard rubber scraper. Then turn it and treat the coating using the smooth face of the scraper. After a waiting time of approx. 10 minutes, deaerate the freshly applied self-levelling (flow) coating with a spiked roller.

Self-levelling (flow) mortar with smooth surface
After repotting pour 50 % by weight quartz sand Disboxid 942 Mischquarz (0.1 - 0.4 mm) or fire-dried quartz sand 0.06 - 0.2 mm (Geba), while stirring. The flow mortar can be filled up to 70% by weight with Disboxid 942 Mischquarz (0.1 - 0.4 mm) or fire-dried quartz sand  0.06 - 0.2 mm (Geba). The working temperature must be at least 20 °C, because otherwise noticeable flow traces may remain. Pour the prepared flow mortar on the priming coat, treated/strewn with Disboxid 942 Mischquarz and continue the procedure as described under point 2.

Advice: With special tints the maximum possible sand quantity has to be controlled, as depending on the tint, it may be less than 50 % by weight.

Coating with quartz sand treatment
After repotting add quarz sand Disboxid 943 Einstreuquarz (0.4 - 0.8 mm) to the material while stirring. Pour the prepared flow mortar as a coating for subsequent quartz sand treatment on the priming coat, scattered/strewn with Disboxid 942 Mischquarz, and spread evenly with a notched hard rubber scraper. Then sand/strew the whole surface of the freshly applied coating with Disboxid 943 Einstreuquarz (0.4 - 0.8 mm) or Disboxid 944 Einstreuquarz (0.7 - 1.2 mm). After the hardening of the coating remove all excess quartz sand. Then continue the coating.

Smooth surface:
Pour on the coating
(described above) a self-levelling mortar consisting of:
Disboxid 421 E.MI Coat 100 % by weight
Disboxid 942 Mischquarz 50 % by weight
and apply evenly with a smoothing trowel or smooth hard rubber scraper. Subsequently deaerate with the spiked roller.

Anti-skid/slip surface (q.v. systemversions of anti-slip property testing): Apply a roll coating on the coating as already described under point 1.2.


Roll coating
Smooth surfaceapprox. 250 g/m2 per coat
Anti-ski/slip surfaceapprox. 450 - 700 g/m2
Flow mortar with smooth surface
Approx. 1 mm layer thickness (3 mm V-notches)pprox. 1.5 kg/m2
Approx. 1.5 mm layer thickness (4 mm V-notches)approx. 2.3 kg/m2
Flow mortar with smooth surface 50% filled with quartz sand
Approx. 2 mm layer thickness (5 mm V-notches)
Disboxid 421 E.MI Coat
Disboxid 942 Mischquarz
approx. 2.2 kg/m2
approx. 1.1 kg/m2
Approx. 3 mm layer thickness (7 mm V-notches)
Disboxid 421 E.MI Coat
Disboxid 942 Mischquarz
approx. 3.3 kg/m2
approx. 1.7 kg/m2
Approx. 4 mm layer thickness (9 mm V-notches)
Disboxid 421 E.MI Coat
Disboxid 942 Mischquarz
approx. 4.4 kg/m2
approx. 2.2 kg/m2
70% filled:
Approx. 3 mm layer thickness (7 mm V-notches)
Disboxid 421 E.MI Coat
Disboxid 942 Mischquarz
approx. 3.0 kg/m2
approx. 2.1 kg/m2
Coating with sand-treatment
Coat – to be sand-treated
Disboxid 421 E.MI Coat
Disboxid 943 Einstreuquarz
approx. 2.1 kg/m2
approx. 0.7 kg/m2
Disboxid 943 or 944 Einstreuquarzapprox. 4 - 4.5 kg/m2
Smooth surface
Disboxid 421 E.MI Coat
Disboxid 942 Mischquarz
approx. 1.6 kg/m2
approx. 0.8 kg/m2
Anti-skid/slip surface
Disboxid 421 E.MI Coatapprox. 700 - 900 g/ m2

These are recommendations. Notch sizes depend on the resistance of the scraper, temperature, filling degree and substrate conditions. Exact values are determined by trial application on site.


At 20 °C and 60% relative humidity, approx. 35 minutes. Higher temperatures shorten and lower temperatures extend the pot life.

Application Conditions

Material, atmospheric, and substrate temperature must be
min. 10 °C and max. 30 °C
during application and hardening. Relative humidity must not exceed 80%. Substrate temperature should always be min. 3 °C above the dew point temperature.

Waiting Time

The waiting time between the individual work step should be at least 16 and max. 24 hours at 20 °C. After longer breaks, the surface of the preceding coating must be roughened / grinded, if it had not been sanded/strewn with quartz sand before. Higher temperatures shorten and lower temperatures extend the waiting time.

Drying/Drying Time

At 20 °C and 60% relative humidity, walkable after approx. 16 hours. Ready for mechanical loads after approx. 3 days and completely hardened after approx. 7 days. Time period is correspondingly longer at low temperatures. Protect the coat from moisture during the hardening process (approx. 16 hours a 20 °C) to avoid irregularities in the surface and diminished adhesion.

Tool Cleaning

Immediately after use or during longer breaks with thinner Disboxid 419.

German Certificates

  • 1-1096 Evaluation to food law requirement aspects Hygiene Institute Gelsenkirchen
  • 1-1212 Certification non-toxic TÜV Nord, Essen
  • 1-1218 Testing of anti-slip property R12 V4 (strewn with quartz sand 0.3 – 0.8 mm) Material Testing Institute Hellberg, Aldendorf
  • 1-1219 Testing of anti-slip property R12 Material Testing Institute Hellberg, Aldendorf
  • 1-1220 Testing of anti-slip property R10 Material Testing Institute Hellberg, Aldendorf
  • 1-1221 Testing of anti-slip property R12 V4 (strewn with quartz sand  0.7 – 1.2 mm) Material Testing Institute Hellberg, Aldendorf
  • 1-1223 Testing of anti-slip property R11 V4 Material Testing Institute Hellberg, Aldendorf
  • 1-1224 Testing of anti-slip property R9 Material Testing Institute Hellberg, Aldendorf
  • 1-1225 Testing of anti-slip property R12 V4 (strewn with granitic split 0.5 – 1.0 mm) Material Testing Institute Hellberg, Aldendorf
  • 1-1226 Testing of anti-slip property R12 V4 (roller applied coating) Material Testing Institute Hellberg, Aldendorf
  • 1-1227 Testing of anti-slip property R12 (two finishing sealer coats) Material Testing Institute Hellberg, Aldendorf
  • 1-1228 Testing of anti-slip property R13 (roller applied coating) Material Testing Institute Hellberg, Aldendorf
  • 1-1229 Testing of anti-slip property R12 V6 (strewn with quartz sand 0.7 – 1.2 mm, roller applied coating) Material Testing Institute Hellberg, Aldendorf
  • 1-1230 Testing of anti-slip property R12 V4 (with priming filling) Material Testing Institute Hellberg, Aldendorf
  • 1-1233 Testing as OS 8 Coating system Polymer Institute, Flörsheim
  • 1-1236 Testing the ease of decontamination to DIN 25415, part 1 Nuclear Research Centre Karlsruhe

Special Risks (Hazard Note) / Safety Advice (Status as at Date of Publication)

For professional use only.

Base material: Irritating to eyes and skin. May cause sensitisation by skin contact. Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. Avoid contact with skin. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. After contact with skin, wash immediately with plenty of water and soap. Do not empty into drains, dispose of this material and its container at hazardous or special waste collection point. Wear suitable gloves and eye / face protection.
Contains epoxy-based compounds.

Hardener: Causes burns. Irritating to respiratory system. May cause sensitization by skin contact. After contact with skin, wash immediately with plenty of water and soap. In case of insufficient ventilation, wear suitable respiratory equipment. Do not breathe vapour / spray (aerosol). In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Wear suitable protective clothing, gloves and eye/face protection. Use only in well-ventilated areas. Keep locked up and out of reach of children.


Materials and all related packaging must be disposed of in a safe way in accordance with the full requirements of the local authorities. Particular attention should be made to removing wastage from site in compliance with standard construction site procedures. In Germany: Only completely emptied containers should be given for recycling. Residues of material: Allow base material and hardener to cure and dispose as paints waste.

EU limit value for the VOC content

of this product (category A/j): 500 g/l (2010). This product contains max. 20 g/l of VOC.


RE 1

Further Details

See Material Safety Data Sheets (MSDS).

Follow the application recommendation and advice for care and maintenance while applying our products.

CE Labelling

CE Labelling to DIN 13813 CE labelling is based on DIN EN 13813 "Screed mortars, screed compounds and screeds – screed mortars and screed compounds – Properties and Requirements” (January 2003) defining the requirements for screed mortars being used for floor constructions in the interiors. The standard also include synthetic resin coatings and sealing. Products matching the above mentioned standard are to be labelled with the CE mark.

EN 1504-2
CE labelling is based on EN 1504-2 "Products and systems for protection and repair of concrete load bearing structures – Part 2: Protective coating systems for concrete surfaces”, defining the requirements for surface protection procedures.
Products matching the above mentioned standards are to be labelled with the CE mark. Additional engineer standards are effective for the use in Germany in structural safety relevant areas. Conformity is documented by the Ü sign (Überwachung = supervision) on the container. Established by documented evidence of conformity 2+ with controls and tests on the part of the manufacturer and notified bodys.

Customer Service Centre

Tel.: +49 6154 71-71710
Fax: +49 6154 71-71711

International Distribution: Please see

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