SikaTop®-588 Seal
(former MSeal 588)
Elastomeric waterproof coating for concrete and masonry in water retaining structures subject to movement
SikaTop®-588 Seal powder and liquid when mixed forms a brushable waterproof slurry, which cures to a flexible elastomeric membrane. It is applied to a minimum 2 mm thickness in two coats by stiff brush, broom or spray.
- Regulation 31 approved for use in contact with potable water
- Retains flexibility when submerged
- Good chemical resistance against soft water, domestic and sewage wastewater and other liquids moderately aggressive to mineral substrates
- Resistant to occasional foot traffic
- 2mm of cured coating equivalent to 500mm of concrete cover
- Freeze/thaw resistant
- Water vapour permeable
- Ammonia free can be applied in enclosed spaces
- Non-solvented – safe to handle and use, environmentally friendly
Usage
- Water retaining structures which may be subject to movement.
- As part of the basement waterproofing system, in areas sensitive to movement, vibration and settlement
- To protect concrete from water of low pH or soft quality, carbonation and de-icing salts
- Suitable for internal and external use, against positive and negative water pressure
- As a resilient coating to protect concrete on bridge parapets, columns, piers, on land and in marine environments
- Waterproofing of new structures where movement is expected from drying shrinkage.
Note: SikaTop®-588 Seal is not suitable for prolonged contact with hydrocarbons such as petrol, fuel oil, etc.
Advantages
- Regulation 31 approved for use in contact with potable water
- Retains flexibility when submerged
- Good chemical resistance against soft water, domestic and sewage wastewater and other liquids moderately aggressive to mineral substrates
- Resistant to occasional foot traffic
- 2mm of cured coating equivalent to 500mm of concrete cover
- Freeze/thaw resistant
- Water vapour permeable
- Ammonia free can be applied in enclosed spaces
- Non-solvented – safe to handle and use, environmentally friendly
Packaging
Supplied in 35 kg unit:
| Comp. A | 25 kg |
| Comp. B | 10 kg |
Colour
Available in Grey and White
Product Details
APPROVALS / STANDARDS
- Approved for use in contact with potable water under:
- Regulation 31(4) (a) of the water supply (water quality) regulation 2016 for England and 2018 for Wales.
- Approved by Energy and Climate Change Directorate Drinking Water Quality Division, under Water Supply (Water Quality) (Scotland) Regulations 2014,
33(3) (a). - Approved by the Department of Agriculture, Environment and Rural Affairs under Regulation 30 of the Water Supply (Water Quality) Regulations (Northern Ireland) 2017.
IMPORTANT NOTE
- Specific instructions for use (IFU) for potable water applications must be followed and are available upon request.
- For all other applications follow the guidance within this technical data sheet.
Product Declaration
Blend of Portland cements, selected silica sands and modifying agents.
Chemical Base
Component A: Powder
Component B: Liquid
Shelf Life
12 months from date of production if stored properly in undamaged and original sealed packaging.
Storage Conditions
Store in original unopened packaging in a cool and dry condition between +5 °C and +30 °C. Protect from direct sunlight, heat and moisture. Avoid excessive compaction.
Maximum Grain Size
0.6 mm
Density
~ 1.68 kg/L (fresh mortar at +20°C)
Crack Bridging Ability
| Static crack bridging properties | Layer thickness ≥ 2mm | 23 °C Class A4 -30 °C Class A2 |
| Dynamic crack bridging properties | Layer thickness | 23 °C Class B3.1 -30 °C Class B2 |
Tensile adhesion strength
| (28 days) - >0.81 to 0.9 N/mm2 | (EN 1542) |
Elongation at break
| Ambient | 23.4 % |
| Under water | 16.2 % |
Capillary Absorption
| (Water absorption) ≤ 0.1 kg/m² x h-0,5 | (EN 1062-3) |
Water Tightness
Positive side waterproofing - 1.5 bar
Negative side waterproofing - 1.0 bar
Permeability to Water Vapour
| (2.6 mm layer thickness) 1450 µ | (EN ISO 7783-1) |
Permeability to CO2
| μCO2 75,000 | (EN 1062-6) |
| SD 150 m |
Chemical Resistance
| Class II | (EN 13529) |
Freeze thaw resistance
| (No scaling after 50 cycles) 1.05 N/mm2 | (EN 13687-1) |
Application
Layer Thickness
Total application thickness in two coats - 2mm
Mixing Ratio
(25 kg Powder + 10 kg Liquid, mix ratio 1:1)
Substrate Temperature
Application temperature (substrate and material) - from +5°C to +30°C
Pot Life
Within 60 minutes (+20°C)
Curing Time
~ 360 min
Consumption
21 m2 per pack in one coat at 1mm thickness. Apply two coats.
Yield
~ 21 L / 35 kg unit
SUBSTRATE QUALITY
Substrates to be treated must be completely clean, structurally sound and mechanically keyed. All surface coatings, defective renders, foreign matter, formwork treatments and other contaminants that may affect the bond adversely should be removed
SUBSTRATE PREPARATION
Substrates should be prepared by abrasive blasting, high-pressure water treatment or mechanically abrading the surface to achieve the required key.
All mortar joints to be flush pointed.
Repair with Sika-4A and/or SikaTop®-586 Seal as required.
All wall/floor intersections to be prepared by cutting a 20mm-by-20mm chase along the junctions and filling with Sika-4A, finishing in an angle fillet to “round out” the junction.
Water infiltration through the substrate to be treated should be either diverted by drainage or concentrated at weepholes, which will be plugged with Sika-4A after the application of the final coat of SikaTop®-588 Seal.
Basements in areas containing high levels of soil or ground water sulphates may require a pre-treatment render. Consult the technical department for details.
MIXING
Liquid content
10 litres of SikaTop®-588 Seal liquid per 25 kg bag of SikaTop®-588 Seal powder.
Mechanical Mixing
Provide adequate ventilation when mixing and applying SikaTop®-588 Seal powder and liquid.
Blend the powder into the mixing liquid. Use a suitable mixing paddle in a slow speed drill (400 - 600rpm). Mix until a lump-free, slightly viscous slurry is obtained. This should be achieved 2 minutes after the addition of all the powder component . Do not over mix.
Mixed material must be used within 60 minutes from the completion of mixing, or less under hot weather conditions.
Do not re-temper the mix.
APPLICATION
Note: Do not apply to frozen substrates or if the ambient temperature exceeds 30°C or is below 5°C or expected to fall below 5°C within 24 hours.
Always apply the mix to a pre-dampened substrate. High-suction substrates require more dampening than dense substrates. Ensure there is no free-standing water on the substrate prior to application. The nominal thickness per coat must be between 1.0 and 1.5mm.
CURING TREATMENT
Damp cure for 24 hours after which time the SikaTop®-588 Seal must be allowed to air dry.
In cold, humid, or unventilated areas it may be necessary to leave the application for a longer curing period or to introduce forced air movement.
NEVER use dehumidifiers during curing periods.
CLEANING OF TOOLS
Tools, equipment, and spillages should be cleaned immediately with clean water.