| Sikafloor-420 is a one part, elastic, low solvent containing, low odour, UV resistant, coloured, moisture-triggered polyurethane resin coating. - Low odour formulation
- High solids
- Moisture-triggered
- Good UV and yellowing resistance
- Weather resistant
- Abrasion resistant with normal use
- Slip resistant surfaces are possible
- A range of finishes are available
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Usage - Smooth or slip resistant, UV resistant, waterproof, abrasion resistant coating for concrete and cementitious screed substrates.
- For light to medium mechanical exposure.
- For balconies, terraces, footbridges, stairways, etc.
Advantages - Low odour formulation
- High solids
- Moisture-triggered
- Good UV and yellowing resistance
- Weather resistant
- Abrasion resistant with normal use
- Slip resistant surfaces are possible
- A range of finishes are available
Packaging 5 litre (6.45 kilos), 15 litre (19.35 kilos) units Colour Masterbatch: Coloured liquid. White.
Tinted product: Coloured liquid. Broad colour range available. |
Technical Information Abrasion Resistance | ~23mg (CS 10/1000 revolutions) | (BS EN ISO 7784-2:2006) |
Chemical Resistance Resistant to many chemicals. Please ask for a detailed chemical resistance chart.
Please Note: Wine, coffee, some leaves and flower petals etc. may cause surface discolouration. This will have no effect on the product performance and durability.
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Application Information Ambient Air Temperature +5°C min. / +30°C max. Lower temperature and humidity will prolong curing times. Ensure the floor is protected from foot traffic until adequately cured. Relative Air Humidity 80% r.h. max.
35% min. (below +20°C: 45% min.) Dew Point Beware of condensation!
The substrate and uncured floor must be at least 3°C above dew point to reduce the risk of condensation or blooming on the floor finish. Substrate Temperature *+5°C min. / +30°C max. * Lower temperature and humidity will prolong curing times. Ensure the floor is protected from foot traffic until adequately cured. Substrate Moisture Content <4% pbw moisture content. Test method: Sika-Tramex meter, CM - measurement or Oven-dry-method. No rising moisture according to ASTM (Polyethylene-sheet). Pot Life The material in opened containers should be applied immediately. With open containers surface film formation will occur within 1–2 hours.
High temperatures and high air humidity will accelerate curing significantly. Curing Time Before overcoating Sikafloor-420 allow: | Substrate temperature | Minimum | Maximum | | +10°C | 24 hours | 14 days | | +20°C | 16 hours | 14 days | | +30°C | 12 hours | 7 days |
Times are approximate and will be affected by changing ambient conditions particularly temperature and relative humidity. After thorough cleaning, Sikafloor-420 can be overworked with itself at any time, assuming that all dirt has been removed and contamination is avoided. Applied Product Ready for Use | Temperature (r.h. 50%) | Rain resistant | Foot traffic | Full Cure | | +10°C | ~ 15 hours | ~ 1–2 days* | ~ 7 -14 days* | | +20°C | ~ 5 hours | ~ 24 hours* | ~ 5–9 days* | | +30°C | ~ 3 hours | ~ 18 hours* | ~ 3–5 days* |
When using Sika-PU Accelerator: | Temperature (r.h. 75%) | Rain Resistant | Foot Traffic | Full Cure | | +20°C | ~ 1 hour | ~ 3 hours* | ~ 3-5 days* |
*Strongly influenced by layer thickness Note: Times are approximate and will be affected by changing ambient conditions |
The above design is only a sample of the options available, for reference purposes only. Our policy of continuous improvement may result in a change of specifications without notice. If any discrepencies might be between the data sheet values and standards, we reserve the rights to make technical changes. Our company will not be held responsible, as all or any of pictures, drawings, weights and dimensions details or other elements in this document are only indicative and must not be considered contractual. Contact our sales team for other specifications or custom made products.
Contact our sales team for other specifications or custom made products.
