Sikafloor®-305 W
2-part PUR matt coloured seal coat part of the Sika Comfortfloor® flooring range
Sikafloor®-305 W is a two part water based, low VOC, polyurethane, coloured matt seal coat. Suitable for use in hot and tropical climatic conditions.
- Water based
- Very low odour
- Good UV resistance, non-yellowing
- Easy to clean
Usage
Matt seal coat for Sika ComfortFloor® flooring range, for smooth Sikafloor® polyurethanes and for the Sikafloor® Economy line epoxies.Advantages
- Water based
- Very low odour
- Good UV resistance, non-yellowing
- Easy to clean
Packaging
Part A | 8.5 kg containers |
Part B | 1.5 kg containers |
Part A + B | 10. kg ready to mix units |
Colour
Sikafloor®-305 W is matt after final curing. Available in various colour shades and as substrates for local tinting.
Product Details
APPROVALS / CERTIFICATES
- Coating for concrete protection according to the requirements of EN 1504-2:2004 and the EN 13813:2002, DoP 0208010400500000031041 certified by Factory Production Control Body, 0620 and provided with the CE-mark.
- Eurofins Emission tested according to the AgBB-scheme and guidelines of the DiBt (AgBB – Committee for Health-related Evaluation of Building Products, DiBt – German Institute for Building Technology). Sampling, testing and evaluation were performed according to ISO-16000, Report No. 769855D.
- Fire classification according to EN 13501-1, Test reports 08-198, 08-199 and CR-13- 167/1, Ghent University.
Composition
PUR
Shelf life
Part A: 6 months from date of production
Part B: 12 months from date of production
Storage conditions
The packaging must be stored properly in original, unopened and undamaged sealed packaging, in dry conditions at temperatures between +5 °C and +30 °C.
Density
Part A | ~1.33 kg/l |
Part B | ~1.13 kg/l |
Mixed resin | ~1.18 kg/l |
All Density values at +23 °C
Chemical Resistance
Resistant to many chemicals. Contact Sika Technical Department for detailed chemical resistance table.
Application
Mixing Ratio
Part A : Part B = 85 : 15 (by weight)
Ambient Air Temperature
+10 °C min. / +30 °C max.
Relative Air Humidity
During curing the humidity should not exceed 75 % maximum. Adequate fresh air ventilation must be provided to remove the excess moisture from the curing product.
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
+10 °C min. / +30 °C max.
Pot Life
Temperatures | Time |
+10 °C | ~80 min |
+20 °C | ~60 min |
+30 °C | ~30 min |
Caution: End of potlife is not noticeable.
Curing Time
Before overcoating Sikafloor®-305 W allow:
Substrate temperature | Minimum | Maximum |
+10 °C | 24 h | 4 d |
+20 °C | 16 h | 3 d |
+30 °C | 12 h | 2 d |
Based on relative humidity maximum 70 % and good ventilation. Times are approximate and will be affected by changing ambient conditions particularly temperature and relative humidity.
Applied Product Ready for Use
Temperature | Foot traffic | Light traffic | Full cure |
+10 °C | ~30 h | ~48 h | ~6 d |
+20 °C | ~16 h | ~24 h | ~4 d |
+30 °C | ~12 h | ~18 h | ~3 d |
Note: Times are approximate and will be affected by changing ambient conditions
Consumption
0.13 - 0.15 kg/m²/layer
These figures are theoretical and do not allow for any additional material due to surface porosity, surface profile, variations in level and wastage etc. When used in high wear conditions, for example where rolling office chairs occur, a double layer Sikafloor®-305 W is highly advisable, as a double layer is increasing the mechanical strength of the system and it resistance against office chairs particularly.
MIXING
Prior to mixing, stir part A mechanically. When all of part B has been added to part A, mix continuously for 3 minutes until a uniform mix has been achieved. To ensure thorough mixing pour materials into another container and mix again to achieve a consistent mix. After mixing allow the material to pre-react for 10 minutes prior to application. Over mixing must be avoided to minimise air entrainment.
Mixing Tools:
Sikafloor®-305 W must be thoroughly mixed using a low speed electric stirrer (300 - 400 rpm) or other suitable equipment.
APPLICATION
Prior to application, confirm substrate moisture content, relative humidity and dew point. Uniformly spread Sikafloor®-305 W by using a short pile nylon roller. Sikafloor®-305 W can also be applied by using a airless spray equipment. A seamless finish can be achieved if a “wet” edge is maintained during application.
CLEANING OF EQUIPMENT
Clean all tools and application equipment with water immediately after use. Hardened and/or cured material can only be removed mechanically.