Sikagard®-Wallcoat N 2-part water dispersed epoxy coating
发布时间：2023/05/21
Product Data Sheet
Edition 03/03/2010 EN
Sikagard® -Wallcoat N
1 1/6
Sikagard® -Wallcoat N
Sikagard®-Wallcoat N
2-part water dispersed epoxy coating
Product
Description
Sikagard® -Wallcoat N is a two part, coloured, water dispersed epoxy resin.
Uses
Coloured coating for interior wall surfaces
For concrete or cementitious substrates
Suitable for production facilities, storage and logistic areas etc.
Characteristics /
Advantages
Good chemical and mechanical resistance
Good bond on damp surfaces
Good opacity
Water vapour permeable
Decontaminable
High resistance to carbonation
Water dilutable
Easy application
Spray application is possible
Easy to clean
Good sag resistance
Odourless
Tests
Approval / Standards
Decontamination property: “Excellent” according to DIN 24415.
Fire behaviour according to DIN 4102, class B1.
Product Data
Form
Appearance / Colours
Resin - part A: coloured, liquid
Hardener - part B: transparent, liquid
Available colour shades: ca. RAL 9003, 9010, 7032, 7035
Other colour shades on request.
Under direct sun light there may be some discolouration and colour variation, this
has no influence on the function and performance of the coating.
Construction 2 2/6
Sikagard® -Wallcoat N
Packaging
Part A: 14.60 kg containers
Part B: 5.40 kg containers
Part A+B: 20 kg ready to mix units
Bulk packaging:
Part A: 270 kg drums
Part B: 200 kg drums
Storage
Storage Conditions /
Shelf-Life
12 months from date of production if stored properly in original, unopened and
undamaged sealed packaging, in dry conditions at temperatures between +5°C and
+30°C. Protect from frost
Technical Data
Chemical Base
Epoxy, water dispersed
Density
Part A: ~ 1.58 kg/l (DIN EN ISO 2811-1)
Part B: ~ 1.07 kg/l
Mixed resin: ~ 1.39 kg/l
All Density values at +23°C
Solid Content
~ 50% (by volume) / ~ 64% (by weight)
Viscosity
1030 mPas at +23°C (part A+B)
Mechanical / Physical
Properties
Abrasion Resistance
94 mg (CS 10/1000/1000) (14 days / +23°C) (DIN 53 109, Taber Abrader Test)
Resistance
Chemical Resistance
Resistant to many chemicals. Please ask for a detailed chemical resistance table.
Exposure* Dry heat
Permanent +50°C
Short-term max. 7 d +80°C
Short-term max. 12 h +100°C
Thermal Resistance
Short-term moist/wet heat* up to +80°C where exposure is only occasional
(i.e. during steam cleaning etc.)
*No simultaneous chemical and mechanical exposure.
System
Information
System Structure
Primer:
On gypsum plaster boards*: 1 x Sikafloor® -156 + 20 wt.-% Thinner C
On mortars: 1 x Sikafloor® -156 + 20 wt.-% Thinner C
or 1 x Sikagard® -Wallcoat N + 5 wt.-% water
On concrete: 1 x Sikafloor® -156 + 20 wt.-% Thinner C
or 1 x Sikagard® -Wallcoat N + 5 wt.-% water
Seal coat: 2 - 3 x Sikagard® -Wallcoat N (roller application)
or 1 - 2 x Sikagard® -Wallcoat N (spray application)
* For the application onto gypsum plaster boards, please refer to
‘Notes on Application / Limitations’. 3 3/6
Sikagard® -Wallcoat N
Application Details
Coating System Product Consumption
Primer Sikafloor® -156+ 20 wt.-% Thinner C or
Sikagard® -Wallcoat N + 5 wt.-% water
~ 0.08 kg/m2
~ 0.15 – 0.20 kg/m2
Seal coat 2 - 3 x Sikagard® -Wallcoat N (roller
application)
1 - 2 x Sikagard® -Wallcoat N (spray
application)
0.15 - 0.25 kg/m2 per coat
0.15 - 0.28 kg/m2 per coat
Consumption / Dosage
These figures are theoretical and do not allow for any additional material due to
surface porosity, surface profile ,variations in level and wastage etc.
Substrate Quality
The concrete substrate must be sound and of sufficient compressive strength
(minimum 25 N/mm2 ) with a minimum pull off strength of 1.5 N/mm2 .
The substrate must be clean, dry and free of all contaminants such as dirt, oil,
grease, coatings and surface treatments, etc.
If in doubt apply a test area first.
Substrate Preparation
Concrete substrates must be prepared mechanically using grinding equipment,
abrasive blast cleaning or scarifying equipment to remove cement laitance and
achieve an open textured surface.
Weak concrete must be removed and surface defects such as blowholes and voids
must be fully exposed.
Repairs to the substrate, filling of blowholes/voids and surface levelling must be
carried out using appropriate products from the Sikafloor® , SikaDur® and Sikagard®
range of materials.
The concrete or screed substrate has to be primed or levelled in order to achieve an
even surface.
High spots must be removed by e.g. grinding.
All dust, loose and friable material must be completely removed from all surfaces
before application of the product, preferably by brush and/or vacuum.
Application
Conditions /
Limitations
Substrate Temperature
+10°C min. / +30°C max.
Ambient Temperature
+10°C min. / +30°C max.
Substrate Moisture
Content
< 6% pbw moisture content.
Test method: Sika® -Tramex meter, CM - measurement or Oven-dry-method.
No rising moisture according to ASTM (Polyethylene-sheet).
Relative Air Humidity
75% r.h. max.
Dew Point
Beware of condensation!
The substrate and uncured floor coating must be at least 3°C above dew point to
reduce the risk of condensation or blooming on the coating finish. 4 4/6
Sikagard® -Wallcoat N
Application
Instructions
Mixing
Part A : part B = 73 : 27 (by weight); 65 : 35 (by volume)
Mixing Time
Prior to mixing, stir part A mechanically. When all of part B has been added to part
A, mix continuously for 2 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.
Over mixing must be avoided to minimise air entrainment.
Mixing Tools
Sikagard® -Wallcoat N must be thoroughly mixed using a low speed electric stirrer
(300 - 400 rpm) or other suitable equipment.
Application Method /
Tools
Prior to application, confirm substrate moisture content, relative humidity and dew
point.
If > 6% pbw moisture content, Sikagard® -720 EpoCem® may be applied as a T.M.B.
(temporary moisture barrier) system.
Primer:
Make sure that a continuous, pore free coat covers the substrate. Apply the
Sikafloor® primer by brush or roller.
Wall coating:
Apply Sikagard® -Wallcoat N by roller.
Sikagard® -Wallcoat N can also be applied by airless spray (spray pressure ~ 300
bar, nozzles with a diameter of 0.53 mm / 0.021 inch and a spray angle 60°).
Cleaning of Tools
Clean all tools and application equipment with water immediately after use.
Hardened and/or cured material can only be removed mechanically.
Temperatures Time
+10°C ~ 150 minutes
+20°C ~ 90 minutes
+30°C ~ 60 minutes
Potlife
Before applying Sikagard® -Wallcoat N on Sikafloor® -156 allow:
Substrate temperature Minimum Maximum
+10°C 24 hours 4 days
+20°C 12 hours 2 days
+30°C 6 hours 1 day
Before applying Sikagard® -Wallcoat N on Sikagard® -Wallcoat N allow:
Substrate temperature Minimum Maximum
+10°C 180 minutes 7 days
+20°C 180 minutes 7 days
+30°C 150 minutes 7 days
Waiting Time /
Overcoating
Times are approximate and will be affected by changing ambient conditions
particularly temperature and relative humidity.5 5/6
Sikagard® -Wallcoat N
Notes on Application /
Limitations
Do not apply Sikagard® -Wallcoat N on substrates with rising moisture.
Do not apply Sikagard® -Wallcoat N on gypsum plaster boards, if in use for wet
areas, such as shower rooms etc.
Freshly applied Sikagard® -Wallcoat N must be protected from damp, condensation
and water for at least 24 hours.
Avoid puddles on the surface with the primer.
Always ensure adequate fresh air ventilation when using Sikagard® -Wallcoat N in a
confined space to avoid curing problems.
Tools
Recommended supplier of tools:
PPW-Polyplan-Werkzeuge GmbH, Phone: +49 40/5597260, www.polyplan.com
The incorrect assessment and treatment of cracks may lead to a reduced service
life and reflective cracking.
For exact colour matching, ensure the Sikagard® -Wallcoat N in each area is applied
from the same control batch numbers.
For spray application the use of protective health & safety equipment is mandatory!
If heating is required do not use gas, oil, paraffin or other fossil fuel heaters, these
produce large quantities of both CO2 and H2O water vapour, which may adversely
affect the finish. For heating use only electric powered warm air blower systems.
Curing Details
Temperature Tack free time Full cure
+10°C ~ 20 hours ~ 10 days
+20°C ~ 6 hours ~ 7 days
+30°C ~ 3 hours ~ 5 days
Applied Product ready
for use
Note: Times are approximate and will be affected by changing ambient conditions.
Value Base
All technical data stated in this Product Data Sheet are based on laboratory tests.
Actual measured data may vary due to circumstances beyond our control.
Local Restrictions Please note that as a result of specific local regulations the performance of this
product may vary from country to country. Please consult the local Product Data
Sheet for the exact description of the application fields.
Health and Safety
Information
For information and advice on the safe handling, storage and disposal of chemical
products, users shall refer to the most recent Material Safety Data Sheet containing
physical, ecological, toxicological and other safety-related data.6 6/6
Sikagard® -Wallcoat N
Notes:
The information, and, in particular, the recommendations relating to the application and end-use of Sika products, are given in
good faith based on Sika's current knowledge and experience of the products when properly stored, handled and applied
under normal conditions in accordance with Sika’s recommendations. In practice, the differences in materials, substrates and
actual site conditions are such that no warranty in respect of merchantability or of fitness for a particular purpose, nor any
liability arising out of any legal relationship whatsoever, can be inferred either from this information, or from any written
recommendations, or from any other advice offered. The user of the product must test the product’s suitability for the intended
application and purpose. Sika reserves the right to change the properties of its products. The proprietary rights of third parties
must be observed. All orders are accepted subject to our current terms of sale and delivery. Users must always refer to the
most recent issue of the local Product Data Sheet for the product concerned, copies of which will be supplied on request.
Sika (China) Ltd.
No.28 Jingdong Road, Suzhou Industrial Park,
JiangSu,P.R.China
ISO 9001: 2008 ISO 14001:2004
Certificate No.:CC3576 Certificate No.:CC3577
The product is manufactured under a HKQAA ISO9001/ISO14001
certified quality/environmental management system.
Construction