Sikalastic®-888
Sikalastic®-888 is a two component, solvent free, flexible polyurea membrane system with good chemical resistance properties. Sikalastic®-888 is 100% solids and has been formulated to be spray applied using plural component spray equipment.
- Very fast reactivity and curing time
- Almost immediate return-to-service time
- Applicable in temperatures from +1°C to +50°C
- Performs in constant dry temperatures from -30°C to +100°C
- Excellent crack bridging properties
- Good chemical resistance
- Excellent abrasion resistance
- Can be applied on polystyrene/ polyurethane foams
- Not resistant to biogenic sulphuric acid
Usage
Sikalastic®-888 is ideal for the following applications:- Bridge deck waterproofing membrane
- Abrasion resistant protective coating in industrial and manufacturing facilities
- Waterproofing for cut and cover structures
- Waterproofing for submersed structures
- Waterproofing on walkways and balconies
- Waterproofing on floors and car park decks
- Water retaining structures in power plants
- Secondary containment structures Tank, bund and pit lining in sewage and waste water treatment plants
Advantages
- Very fast reactivity and curing time
- Almost immediate return-to-service time
- Applicable in temperatures from +1°C to +50°C
- Performs in constant dry temperatures from -30°C to +100°C
- Excellent crack bridging properties
- Good chemical resistance
- Excellent abrasion resistance
- Can be applied on polystyrene/ polyurethane foams
- Not resistant to biogenic sulphuric acid
Packaging
Part A: 210kg drum
Part B: 200kg drum
Colour
Grey
White (MTO)
Blue (MTO)
Natural (MTO)- For potable water applications
Product Details
APPROVALS / CERTIFICATES
AS/ NZS 4020:2018 Potable water approved (In Natural colour only)
Composition
Pure Polyurea
Shelf life
12 months from date of production
Storage conditions
The packaging must be stored properly in original, unopened and undamaged sealed packaging, in dry and cool conditions protected from direct sunlight.
Density
Part A: 1.13kg @ 40°C
Part B: 1.0kg @ 40°C
Viscosity
Part A: 180 (cps @ 40°C)
Part B: 150 (cps @ 40°C)
System structure
CONCRETE SUBSTRATE APPLICATIONS:
| Coating System | Product | Consumption |
| Primer Coat | Sikafloor 94/Sikafloor 160 (epoxy primer) | 0.2 - 0.4kg/m² (depending on substrate porosity) |
| Primer Broadcast | 0.3-0.8mm kiln dried quartz sand | 1.0-1.5kg/m² |
| Membrane Coat | Sikalastic 888 | approx. 1.033kg/m²/mm |
- Sikafloor 94 must be used as the primer for potable water applications.
- If Sikafloor 94/160 is being overcoated with Sikalastic®-888 within 24 hours of application, sand broadcasting is not required.
- Please note for substrates containing moisture (up to 6%) we suggest substituting primer for Sikatite moisture seal 2K.
- For adhesion to other substrates than concrete please contact Sika Technical for advice.
Shore A hardness
95 (AS1683.15)
Shore D Hardness
45 ~ 50 (AS1683.15)
Tensile strength
17.0MPa (AS1683.11)
Tear strength
75 kN/m (AS1683.12- Angle tear strength)
Service temperature
-30°C to +100°C
Application
Mixing ratio
Part A : Part B= 1:1 volume
Layer thickness
> 2 mm (Crucial System)
≥ 1.5 mm (Standard System)
Ambient air temperature
-20°C ~ +50°C
Relative air humidity
< 85%
Substrate temperature
+1°C ~ +50°C
≥ 3°C above dew point, beware of condensation
Curing time
24 hours @ +20°C
Waiting time to overcoating
1 to 2min @ +20°C
Drying time
<5 seconds (Gel time)
Consumption
approx. 1.033 kg/m²/mm
MIXING
Dose and mix with a suitable air driven or electrical plural component heated spray equipment. Both components must be heated up to +60 °C. The accuracy of mixing and dosage must be controlled regularly with the equipment. Thoroughly stir part B (Amine) using a drum stirrer until a homogenous colour is obtained.
CLEANING OF EQUIPMENT
Clean all tools with Thinner C immediately after use. The application equipment has to cleaned and filled with Mesamoll. Hardened and/or cured material can only be removed mechanically.