Sikafloor®-158 W Fast Barrier
Sikafloor®-158 W Fast Barrier is a rapid-drying, 2-component, water based epoxy resin that chemically cures to form a permanent hydrostatic barrier.
- Very Low VOC
- Very Low Moisture Vapour Transmission
- Water-based - User Friendly
- Green Star Certified
- Very low odour during application
- Single application on most substrates
- Solvent free
- Non DG storage
- Great penetration into porous construction materials
- Easy mix ratio 2:1 A-B
- Rapid drying 2-3hrs @ 23°C
- Highly fluid and easy to apply
- Commercial size packaging - 18kg kit
Usage
Applied in combination with suitable materials from Sikafloor®, SikaBond®, Sikadur®, SikaTite® & Davco®ranges.
- To stop rising moisture in concrete on grade
- To stop rising moisture on green concrete
- To bind/consolidate a weakened or damaged
- To act as an incontinence barrier for concrete in Aged & Health Care facilities
- Can be used under Sikafloor Epoxy Flooring System
Advantages
- Very Low VOC
- Very Low Moisture Vapour Transmission
- Water-based - User Friendly
- Green Star Certified
- Very low odour during application
- Single application on most substrates
- Solvent free
- Non DG storage
- Great penetration into porous construction materials
- Easy mix ratio 2:1 A-B
- Rapid drying 2-3hrs @ 23°C
- Highly fluid and easy to apply
- Commercial size packaging - 18kg kit
Packaging
12kg part A & 6kg part B = 18kg kit (16.66L)
Colour
Wet - White
Cured - Transparent
Product Details
APPROVALS / CERTIFICATES
Water Vapour Transmission (ASTM E96)
Green Star (VOC-SCQMD Rule 1168)
Composition
2-Component, water-based, epoxy resin
Shelf life
Sikafloor®-158 W Fast Barrier has a shelf life of 12 months from the date of production, if stored properly in undamaged, original, sealed packaging.
Storage conditions
Sikafloor®-158 W Fast Barrier should be stored in cool dry conditions at all times. Protected from direct sunlight and keep at temperatures between +5 °C and +35 °C.
Density
| Mixed | ~1.08 kg/l |
Application
Mixing ratio
| Component A : Component B = 2:1 (by weight) Note, 10% water is added to the measured product when mixing. For example, a full kit = 16.6L requires an additional 1.6L when mixing. |
Thinner
Sikafloor 158 Fast Barrier should be diluted to a mxiumum of 10% with clean cool water
Substrate temperature
+10°C min. / +30°C max.
Substrate moisture content
- In-situ probe test up to 100% RH
All testing/readings should conform with relevant AS/NZ standards
Pot Life
| +15°C | 40min |
| +23°C | 30min |
| +30°C | 15min |
Note, Mixed Sikafloor®-158 W Fast Barrier stays liquid when pot life is
over. Only mix the amount of product that will be consumed directly.
DO NOT USE mixed material after pot life has expired and product begins to thicken.
Waiting time to overcoating
- Subsequent applications may be applied after Sikafloor®-158 W Fast
Barrier has turned transparent with no signs of white in the coating and
no damage is caused to Sikafloor®-158 W Fast Barrier coating.
- It is not recommended to leave Sikafloor®-158 W Fast Barrier for long periods (days) prior to next applications as contamination is likely.
- If Sikafloor®-158 W Fast Barrier surface has been contaminated or
left sitting longer than 48hrs with no subsequent applications - lightly
sand/abrade - thorough vacuum - wipe with a clean cloth and water.
Another coat of Sikafloor®-158 W Fast Barrier should then be applied.
Applied product ready for use
2-3 hrs+ @ 23°C
- Drying is dependent on local temperature, air flow & humidity.
- Increased air flow (fan) will help drying speeds in cooler temperatures.
- Do not use gas heaters as a film may settle on the surface causing further applications to de-bond.
Consumption
| Smooth concrete surface | 4-6m2/L, |
| Smooth cement based compound | 4-6m2/L, |
| Mechanically profiled or very porous surface may require 2 coats | 4-6m2/L, on first coat 6-8m2/L on second coat |
Consumption average is dependent on the absorbency of the substrate.
MIXING
Mix Part A with Part B at a ratio of 2:1 or full kit
size of 12kg to 6kg, add the required 10% cool and clean water, then mix with an electric drill
and paddle (Paint Mixer Type) at a lowspeed to
reduce air entrapment.
A minimum mixing time of 2 minutes shall be observed.
Scrape sides and bottom of pails to ensure all
contents are thoroughly mixed together then mix for a further 1 minute
Using a paint stick or similar is not sufficient.
Unmixed material applied to the floor will not cure.
APPLICATION
Smooth Porous Surface (steel trowel finish concrete)
Apply 1 generous coat of Sikafloor®-158 W Fast
Barrier to the substrate using a 6-8mm microfiber
roller, ensuring that a continuous coat is achieved
over the entire surface (MUST produce a wet
reflective appearance with a solid white colour).
Back rolling in opposite direction is recommended
to insure even coverage.
On particularly porous sections where the initial
coat is absorbed immediately, re-apply.
.
| Application | Coatings | Result |
| Moisture Barrier | Minimum 1 coat | Solid white reflective surface |
| Incontinence Barrier | Minimum 1 coat | Solid white reflective surface |
| Substrate Consolidation | Minimum 1 coat | Solid white reflective surface |
| Moisture Barrier Consolidation | Minimum 2 coats | Solid white reflective surface |
For use with Sikafloor Epoxy Systems
Sikafloor®-158 W Fast Barrier Can be used in double primer applications where required, For Self Levelling and roller Epoxy or PU flooring applications, Sikafloor®-158 W Fast Barrier must be over coated with Sikafloor 161 Roller applied epoxy before any further applications of subsequent products can be applied
Sikafloor®-158 W Fast Barrier can be re coated with Sikafloor 161 Roller applied epoxy @ 3hrs @ 23degrees C, the subsequent flooring system can then be applied.
Example System Builds can be seen below:
| Moisture Barrier/Primer, Penatrative selaer Sikafloor®-158 W Fast Barrier | 1 x layer | Solid white reflective surface |
| Primer: Sikafloor 161, In either roller applied or scrach coat application | 1 x layer | 0.3kg/m2 Minimum (As Required) |
| Body Coat: Sikafloor Epoxies: 264, 264T, 263SL or Sikafloor Polyurethane: 376, 377 can now be applied | 1 x layer | as required by System Data Sheet |
| Body Coat: Sikafloor Epoxies: 264, 264T, 263SL or Sikafloor Polyurethane: 376, 377 can now be applied | 1 x layer | as required by System Data Sheet |
CLEANING OF EQUIPMENT
Clean all tools and application equipment with water
immediately after use.