Sikafloor®-356 N
Polyurethane clear matt finish seal coat
Sikafloor®-356 N is a 2-part, clear, solvent-based, polyurethane, low-yellowing, chemical resistant, matt finish seal coat. For normal - medium wear conditions. Internal and external use.
- For dry processing areas
- Tough-elastic
- Good mechanical and chemical resistance
- Low-yellowing
- Easy applied by roller
Usage
Matt finish seal coat for:- Sikafloor® flooring systems
- Sikafloor® broadcast and sealed screeds in dry processing areas
Advantages
- For dry processing areas
- Tough-elastic
- Good mechanical and chemical resistance
- Low-yellowing
- Easy applied by roller
Packaging
Part A | 8 kg container |
Part B | 2 kg container |
Part A+B | 10 kg ready to mix unit |
Refer to current price list for packaging variations
Colour
Clear liquid
Product Details
APPROVALS / STANDARDS
- CE Marking and Declaration of Performance to EN 1504-2 - Surface protection product for concrete - Coating
- CE Marking and Declaration of Performance to EN 13813 - Resin screed material for internal use in buildings
- Decontamination Ability DIN 25 415-1, Sikafloor®-356 N, Forschungszentrum Jülich GmbH, Test report No. 430.16.99.wü2
Product Declaration
EN 1504-2: Surface protection product for concrete - Coating
EN 13813: Resin screed material for internal use in buildings
Chemical Base
Solvented polyurethane
Shelf Life
6 months from date of production
Storage Conditions
The product 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 | ~1,13 kg/l |
Part B | ~0,89 kg/l |
Mixed resin | ~0,97 kg/l |
All Density values at +23 °C
Chemical Resistance
Resistant to many chemicals. Contact Sika Technical Services for additional information.
Application
Mixing Ratio
Part A : Part B = 80 : 20 (by weight)
Ambient Air Temperature
+10 °C min. / +30 °C max.
Relative Air Humidity
80 % max.
Dew Point
Beware of condensation.
The substrate and uncured applied 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.
Substrate Moisture Content
Surface of broadcast system to be sealed must be dry
Pot Life
Temperature | Time |
+10 °C | ~120 minutes |
+20 °C | ~60 minutes |
+30 °C | ~20 minutes |
Waiting Time / Overcoating
Before applying Sikafloor®-356 N on Sikafloor®-264 N, 381, 359, 378 allow:
Substrate temperature | Minimum | Maximum |
+10 °C | 48 hours | 3 days |
+20 °C | 24 hours | 2 days |
+30 °C | 16 hours | 2 days |
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 | ~36 hours | ~5 days | ~10 days |
+20 °C | ~24 hours | ~3 days | ~7 days |
+30 °C | ~16 hours | ~2 days | ~3 days |
Times are approximate and will be affected by changing ambient conditions particularly temperature and relative humidity.
Consumption
Seal coat on Sikafloor® smooth substrates
~0,1–0,15 kg/m2
Seal coat on Sikafloor® broadcast substrates
~0,15–0,3 kg/m2
General
These figures are theoretical and do not allow for any additional material due to surface porosity, surface profile, variations in level or wastage etc.
MIXING
Prior to mixing all parts, mix Part A (resin) using a low speed single paddle electric stirrer (300 - 400 rpm) or other suitable equipment to mix liquid and all the coloured pigment until a uniform colour / mix has been achieved. Add Part B (hardener) to Part A and mix Part A + B continuously for 3,0 minutes until a uniformly coloured mix has been achieved. To ensure thorough mixing pour materials into a clean container and mix again for at least 1,0 minute to achieve a smooth consistent mix. Excessive mixing must be avoided to minimise air entrainment. During the final mixing stage, scrape down the sides and bottom of the mixing container with a straight edge trowel or spatula at least once to ensure complete mixing. Mix full units only. Mixing time for A+B = ~4,0 minutes.
APPLICATION
Strictly follow installation procedures as defined in method statements, application manuals and working instructions which must always be adjusted to the actual site conditions.
Prior to application, confirm substrate moisture content, relative air humidity, dew point, substrate, air and product temperatures.
After waiting the appropriate overcoating time, pour the mixed Sikafloor®-356 N onto the existing resin layer and spread evenly using a short piled nylon roller in two directions at right angles to each other.
General
A seamless finish can be achieved if a ‘wet’ edge is maintained during application.
CLEANING OF TOOLS
Clean all tools and application equipment with Thinner C immediately after use. Hardened material can only be removed mechanically.