Sikagard® PW
Chemical Resistant Epoxy Coating
Sikagard® PW is a two component, solvent free epoxy coating with outstanding mechanical and chemical properties.
Suitable for use in hot and tropical climatic conditions.
- Suitable for direct contact with potable water
- Easy to clean, tough glossy finish
- Very good resistance to a wide range of chemicals and corrosive vapours
- Sewage resistant
- Good mechanical and chemical resistance
- High build
- Impervious to liquids
Usage
Sikagard® PW may only be used by experienced professionals.- Chemical resistant protective layer on concrete, structural cementitious mortars, epoxy cement, epoxy resin based products and steel
- Protection of concrete surfaces / foundations below ground level
- Lining in storage tanks, manholes, intakes and silos etc.
- Anti-corrosion coating on steel in food processing plants, sewage works, farms, agricultural enterprises, chemical and pharmaceutical facilities and beverage industry
Advantages
- Suitable for direct contact with potable water
- Easy to clean, tough glossy finish
- Very good resistance to a wide range of chemicals and corrosive vapours
- Sewage resistant
- Good mechanical and chemical resistance
- High build
- Impervious to liquids
Packaging
Please refer to local country price list for available packaging sizes:
| Part A | 5.6 kg containers |
| Part B | 1.4 kg containers |
| Part A + B | 7 kg ready to mix units |
| Part A | 11.2 kg containers |
| Part B | 2.8 kg containers |
| Part A + B | 14 kg ready to mix units |
| Part A | 16 kg containers |
| Part B | 4 kg containers |
| Part A + B | 20 kg ready to mix units |
| Part A | 20 kg containers |
| Part B | 5 kg containers |
| Part A + B | 25 kg ready to mix units |
Colour
Grey and white (mixed A + B), further colours upon request
Product Details
SUSTAINABILITY
Sikagard® PW is certified according "Low Emitting Materials as per Al Sa'fat - Dubai Green Building Evaluation System" by Dubai Central Laboratory (DCL) certificate No. CL17020432
Composition
Epoxy resin
Shelf life
12 months from date of production.
Storage conditions
Store in unopened, undamaged and sealed original packaging in dry conditions at temperatures between +5 °C and +30 °C. Protect from direct sunlight, heat and moisture.
Density
~1.48 kg/l (25 °C)
Abrasion resistance
| ~50 mg (14 d / 23 °C) | (CS 10 / 1000 / 1000) |
Tensile adhesion strength
| > 1.5 N/mm2 (or concrete failure) | (ASTM C1583) |
Chemical resistance
Please contact Sika Technical Department for specific information.
Application
Mixing ratio
(A : B) = (4 : 1) by weight
Layer thickness
Minimum two coats, each minimum 200 microns thick.
Ambient air temperature
+5 °C min. / +40 °C max.
Relative air humidity
< 80 %
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.
Note: Low temperatures and high humidity conditions increase the probability of blooming.
Substrate temperature
+5 °C min. / +40 °C max.
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
~40 min. (20 °C)
Curing time
| Fully cured | 7 d (25 °C) |
Waiting time to overcoating
Min. 4 h (35 °C)
Min. 5 h (25 °C)
Max. 2 d (25 °C)
Consumption
~0.3 kg/m2 for a layer-thickness of 200 microns.
This figure is theoretical and does not include for any additional material required due to surface porosity, surface profile, variations in level and wastage etc..
SUBSTRATE PREPARATION
- The 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.
- Concrete substrates must be prepared mechanically using 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 blow holes 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.
- All dust, loose and friable material must be completely removed from all surfaces before application of the product, preferably by brush or vacuum.
- Steel surfaces maybe primed using a suitable anti-corrosion primer.
APPLICATION
Prior to mixing stir part A mechanically. When all of part B has been added to part A mix continuously for 3 minutes until an uniform mixed has been achieved. Use a low speed electrical stirrer (300 - 400 rpm) to avoid air entrapment. To ensure proper mixing pour material into a clean container and stir again. Apply by brush, roller or airless spray.
Further coats and lamination may be applied to enhance the protective performance of the system.
CLEANING OF EQUIPMENT
Tools and equipment should be cleaned with Sika® Thinner immediately after use. Hardened material can only be removed mechanically.