Sikalastic®-220 W
Resin based liquid applied waterproofing membrane
Sikalastic®-220 W is a ready to apply, one part, water based resin, liquid applied membrane for wet rooms. Provides a fully bonded waterproof finish ready for the application of tiles. Thickness ≥ 0.5 mm. Internal use.
- Seamless
- Part of a full system including Sika® SealTapes, primers and tile adhesives.
- One part ready to apply
- Water based
- Fast drying
- Waterproof
- Crack bridging
- Ideal for both trowel and roller application
- Applied on different substrates: concrete, cement plaster, gypsum board, gypsum plaster, gypsum bricks, dry screeds, old ceramic finishes.
- Conforms to ETAG 022:1
Usage
- Waterproofing shower rooms
- Waterproofing bathrooms
- Walls and normal – high loaded floors in the above rooms
Advantages
- Seamless
- Part of a full system including Sika® SealTapes, primers and tile adhesives.
- One part ready to apply
- Water based
- Fast drying
- Waterproof
- Crack bridging
- Ideal for both trowel and roller application
- Applied on different substrates: concrete, cement plaster, gypsum board, gypsum plaster, gypsum bricks, dry screeds, old ceramic finishes.
- Conforms to ETAG 022:1
Packaging
16 kg containers
Colour
Blue-grey
Product Details
ENVIRONMENTAL INFORMATION
-
VOC emission classification GEV-Emicode EC1, license number 7658/24.02.97
APPROVALS / STANDARDS
-
CE Marking and Declaration of Performance to ETAG 022 Part 1 - Watertight covering kit for wet room floors and walls based on liquid applied coverings
Chemical Base
Synthetic water based resin dispersion
Shelf Life
12 months from date of production.
Storage Conditions
Product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +35 °C. Always refer to packaging.
Density
~1.6 g/cm³
System Structure
| Substrate | Primer |
| Calcium sulfate substrates (gypsum plasterboards, gypsum fiberboards, gypsum bricks, gypsum plasters, calcium sulfate screeds...) | Sika® Primer-11 W+ |
| Non absorbent substrates (ceramic...) | Sika® Primer-21 W |
Sika® SealTape F
Crack Bridging Ability
| Sikalastic®-220 W layer thickness | Category |
| 0.5 mm | Cat 2 (0.75 mm) |
Test perfomed at 23 °C
Water Tightness
| Watertight (pressure 1.5 bar) | (EN 14891 A.7) |
Permeability to Water Vapour
| sd = 18 m | (EN 12 572) |
Chemical Resistance
| Resistance to alkalinity Cat: 2 | (EN 14891 A 6.9) |
Reaction to Fire
| Class E | (En 13501) |
Application
Layer Thickness
- Wet film thickness for each layer application - minimum 0.45 mm
- Dry film thickness for full coating application - minimum 0.5 mm
Ambient Air Temperature
min. +5 °C, max. +35 °C
Substrate Temperature
min. +5 °C, max. +35 °C
Substrate Moisture Content
Refer to the individual primer Product Data Sheet.
Cement screeds are required to be at least 28 days old and to have a residual moisture ≤ 2.0 CM-%, calcium sulphate screeds should have a residual moisture ≤ 0.5 CM-%
Waiting Time / Overcoating
Before applying first and second coat allow :
~3 hours on walls
~5 hours on floors
Times are approximate and will be affected by changing ambient and substrate conditions particularly temperature and relative humidity.
Consumption
~1.35 kg/m² for two layer application
SUBSTRATE QUALITY
The substrate must be sound, clean, dry and free of all contaminants such as dust, dirt, oil, grease,cement laitance,previous coatings and other surface treatments that could cause poor adhesion.
SUBSTRATE PREPARATION
Cementitious substrates shall be prepared mechanically using suitable equipment such as abrasive blast cleaning / planing / scarifying / grinding to remove cement laitance and achieve an open textured surface profile suitable for the product thickness.
Surface treatments or any "friable" areas of the substrate must be mechanically removed and the substrate repaired with Sika levelling compounds.
All dust, loose and friable material must be completely removed from all surfaces before application of the product, preferably by vacuum cleaning equipment.
MIXING
- 1-part ready to use.
- Can be used directly without stirring.
CLEANING OF TOOLS
Clean all tools and application equipment after use with water. Hardened and/or cured material can only be removed mechanically.
