Description
Price per 18 L
Sikalastic-390 Membrane is a high quality, fast chemical curing, two-component, solvent-free, elastomeric and crackbridging polyurethane waterproofing membrane. It is part of the Sikalastic® Parking Deck Waterproofing System and the Sikafloor® Industrial and Decorative Flooring Systems.
- Easy to apply for an economical application
- Highly resistant waterproof elastomer
- Solvent-free formula emitting low odours and contributing for a safer working envrionment
Material Use:
Sikalastic®-390 Membrane is a two-component, solvent-free, elastomeric polyurethane waterproofing membrane used in high-demand environments. It serves as a key component of the Sikalastic® Parking Deck Waterproofing System and Sikafloor® Industrial and Decorative Flooring Systems.
System Components:
Sikalastic®-390 Membrane is typically used with specific primers based on substrate conditions:
- Sikalastic®-120 FS Primer for standard concrete or wood substrates with low moisture content (≤ 4%).
- Sika® MT Primer for concrete substrates with higher moisture content (4–6%) or metal penetrations.
- For moisture content > 6%, Sikafloor®-81 EpoCem®CA is required as a moisture barrier.
Applications:
This membrane is suitable for a range of environments including:
- Multi-storey parking garages
- Parking decks and ramps
- Footbridges, walkways, rooftop and plaza decks
- Balconies, terraces, mechanical rooms
- Stadiums, arenas, shower rooms
- Any areas requiring crack-bridging and waterproof flooring systems
Application Details:
- Mixing Ratio: 2:1 (A:B by volume)
- Coverage Rate: 1.2 - 1.6 m²/L (50 - 65 ft²/gal) at 25 - 30 mil wet film thickness
- Application Method: Applied using a notched squeegee and backrolled; minimum one coat required, more on absorbent surfaces.
- Pot Life: ~20 minutes at 23 °C (73 °F)
- Recoat Time: 6–24 hours
- Traffic Ready: 48 hours
- Full Cure: 7 days
- Application Temperature Range: 10 °C to 32 °C (50 °F to 90 °F)
- Minimum Film Thickness: 25 mil wet film (opacity is a QC marker)
- Surface Preparation: Must be clean, dry, CSP 3–4 profile. Surface defects must be pre-repaired.
- Substrate Requirements: Minimum compressive strength of 25 MPa; tensile strength ≥ 1.5 MPa
Special Notes:
- UV Stability: Not specifically stated as UV stable or resistant; use topcoats accordingly for UV exposure.
- Moisture Tolerance: Not to be applied where concrete moisture > 4% unless using moisture mitigation products.
- Limitations: Not suitable for on-grade slabs, unvented decks, buried membranes, asphalt, or where moisture vapor transmission is active.
- VOC Content: 3 g/L – very low, contributing to safer application indoors.
- Abrasion and Chemical Resistance: High; passes ASTM tests for tensile, elongation, abrasion, water absorption.
- Environmental Considerations: Contains 55% rapidly renewable materials (non-food vegetable oil).
This product provides a robust and flexible solution for durable waterproofing in commercial and infrastructure environments, especially effective in heavy-traffic areas like parking decks and mechanical spaces.
https://can.sika.com/en/construction/floors-walls/specialty-flooring/waterproofing-flexiblemembrane/sikalastic-390-membrane.html
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