Sikalastic®-590
Gray / 4kg
$28.50
Sale price
$28.50
Regular price
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Sikalastic®-590
$28.50
Sale price
$28.50
Regular price
Sikalastic®-590
A one-component polyurethane-acrylic dispersion waterproofing coating with improved water ponding resistance, excellent UV resistance, and high crack-bridging capacity. Suitable for new construction and refurbishment roofing projects. Available in Grey and White.
Overview
Specifications
| Property | Value |
|---|---|
| Type | 1-component polyurethane-acrylic dispersion |
| Density | ~1.32 kg/L at +30°C (EN ISO 2811-1) |
| Solid Content | ~63% by weight |
| Tensile Strength | ~1.7 N/mm² (free film, >7 days) |
| Adhesion in Peel | ~1.5 N/mm² (free film, >7 days) |
| Solar Reflectance (White) | ~80% |
| Thermal Emittance (White) | ~0.91 |
| Solar Reflectance Index (White) | ~100.9 at 12 W.m⁻².K⁻¹ |
| UV Resistance | Pass – 1000 hours UVA-340 (ASTM G154) |
| Shelf Life | 12 months from date of production (unopened original packaging) |
| Storage | Dry, +5°C to +30°C |
Usage
- Waterproofing for new construction and refurbishment roofing projects
- Roofs with complex geometry or limited accessibility
- Cost-efficient life cycle extension of failing roofs
- Reflective coating to enhance energy efficiency and reduce cooling costs (White variant)
- Areas subject to limited water ponding
Advantages
- Good behaviour under limited water ponding
- UV resistant – no yellowing or weathering
- Highly elastic and crack-bridging
- Non-toxic, VOC compliant, water-based
- One component – ready to use
- Excellent adhesion on porous and non-porous substrates
- Seamless waterproofing membrane
- Water vapour permeable
Packaging
- 4 kg plastic pail
- 20 kg plastic pail
Colour
- Grey
- White (solar reflective)
Product Details
Product Information
| Property | Detail |
|---|---|
| Composition | Polyurethane modified acrylic dispersion |
| Shelf Life | 12 months from date of production (original sealed packaging) |
| Storage Conditions | Dry, +5°C to +30°C |
| Density | ~1.32 kg/L at +30°C (EN ISO 2811-1) |
| Solid Content | ~63% by weight |
Technical Information
| System | Layer | Product | Consumption |
|---|---|---|---|
| Without Reinforcement | Primer coat | Sikalastic®-590 diluted with 10% water | ~0.3 kg/m² |
| 1st coat | Sikalastic®-590 undiluted | ~0.5 kg/m² | |
| 2nd coat | Sikalastic®-590 undiluted | ~0.5 kg/m² | |
| With Sika®-120 Reemat | Primer coat | Sikalastic®-590 diluted with 10% water | ~0.3 kg/m² |
| 1st coat* | Sikalastic®-590 undiluted | ~0.3 kg/m² | |
| 2nd coat | Sikalastic®-590 undiluted | ~0.5 kg/m² | |
| Reinforcement | Sika®-120 Reemat | 1 m² | |
| 3rd + final coat | Sikalastic®-590 undiluted | 0.3–0.5 kg/m² each |
Application
Application Information
| Parameter | Value |
|---|---|
| Ambient Temperature | +15°C min / +35°C max |
| Relative Humidity | Max. 80% r.h. |
| Substrate Temperature | +15°C min / +35°C max |
| Substrate Moisture | <6% (no rising moisture per ASTM polyethylene sheet test) |
| Dew Point | Surface must be min. 3°C above dew point |
| Touch Dry at +20°C | ~2 hours |
| Rain Resistant at +20°C | ~10 hours |
| Fully Cured at +20°C | ~4 days |
| Touch Dry at +30°C | ~1 hour |
| Rain Resistant at +30°C | ~6 hours |
| Fully Cured at +30°C | ~2 days |
Consumption
- Without reinforcement: ~1.3 kg/m² total (primer + 2 coats)
- With Sika®-120 Reemat: ~1.9–2.1 kg/m² total (primer + 4 coats + reinforcement)
Application Steps
- Substrate Preparation – Concrete: Cure min. 28 days, pull-off strength ≥1.5 N/mm². Mechanically prepare to open texture. Remove laitance, blowholes, voids, and all contaminants. Repair defects with Sikafloor®, SikaDur®, or SikaGard® products. Apply in late afternoon/evening to reduce outgassing. Always prime and use reinforced system on concrete.
- Substrate Preparation – Other: Brick/stone: flush point mortar joints, use localised reinforcement. Slates/tiles: ensure sound and secure; abrade glazed tiles before priming. Bituminous felt/coatings: firmly adhered, no degraded areas, always use fully reinforced system. Metals: abrade to bright metal, reinforce over joints. Timber: sound and firmly fixed.
- Mixing: Stir Sikalastic®-590 thoroughly for 1 minute to achieve a homogeneous mixture. Avoid over-mixing to minimise air entrainment.
- Without Reinforcement: Apply primer (diluted 10% water, ~0.3 kg/m²). Allow to dry tack-free. Apply 1st coat (~0.5 kg/m²) and allow to dry. Apply 2nd coat (~0.5 kg/m²).
- With Sika®-120 Reemat: Apply primer (~0.3 kg/m²). Apply 1st coat (~0.3 kg/m²). Apply 2nd coat (~0.5 kg/m²) wet, then roll in Sika®-120 Reemat ensuring full saturation. Overlap edges min. 5 cm. Apply 3rd coat (~0.5 kg/m²) wet-on-wet. After drying, sand any upstanding fibres, then apply final coat (0.3–0.5 kg/m²).
- Tools: Solvent-resistant short-piled lambskin roller for field areas; thick hair brush for details and penetrations; airless spray (min. 220 bar, 5.1 L/min, 0.83 mm nozzle) for spray application.
- Cleaning: Clean all tools with water immediately after use. Hardened material can only be removed mechanically.