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Sikalastic®-390 Liquid-Applied Waterproofing Base Membrane
Sika

Sikalastic®-390 Membrane | Liquid-Applied Waterproofing Base Membrane

Sale price$597.26
Authorized Distributor
Stocked in North Vancouver, BC
Pickup & Delivery Across BC
Trade & Professional Grade

Need volume pricing, system advice or a trade account?

Call 250-233-3000 Contact / Trade Account

Confirm Availability Before Ordering — Available to Order, North Vancouver, BC. Sika products are supplied to order and stock is not guaranteed at the time of purchase. Placing an order does not confirm stock. We confirm availability and pickup or shipping timing within one business day of every order. To check current stock and lead time before you order, call 250-233-3000 or email order@canopussupply.com.

Sikalastic®-390 Membrane | Liquid-Applied Waterproofing Base Membrane

Liquid-Applied, Seamless Elastomeric Waterproofing Membrane | Brand: Sika

Sikalastic®-390 is a liquid-applied, seamless elastomeric waterproofing membrane that forms the base waterproofing layer of the Sikalastic®-3900 Traffic System. Applied over Sika MT Primer, it cures to a continuous, flexible film. Confirm coverage, film thickness, cure time and crack-bridging performance against the current Sika TDS, SDS and project specification before use.

Sikalastic®-3900 Traffic System component: the base waterproofing membrane, applied over MT Primer and beneath the Sikalastic®-391 N wear course. Confirm the full system build-up against the current Sika system specification.
Also available — ResinTech alternative

Prefer a locally stocked alternative? ResinTech FLEXCOAT-PU is a single-component elastomeric polyurethane waterproofing & crack-bridging base membrane, stocked in North Vancouver and used in the same base / liquid-applied waterproofing-membrane applications. Product chemistry and system build differ between manufacturers — confirm suitability against the current ResinTech TDS before substituting.

Key Characteristics

  • Liquid-applied membrane that cures to a seamless, elastomeric film.
  • Designed to accommodate substrate movement; confirm crack-bridging performance against the TDS.
  • Confirm wet and dry film thickness and coverage rate against the current TDS.
  • Confirm cure and recoat windows against the TDS (temperature- and humidity-dependent).

Typical Applications

  • Base waterproofing layer for vehicular and pedestrian traffic decks
  • Parkades, ramps and podium decks within the Sikalastic®-3900 Traffic System

Limitations

  • Must be applied over an approved primer as part of the Sika system.
  • Confirm substrate preparation requirements against the TDS.
  • Confirm number of coats and film build against the TDS.
  • Not a standalone wearing surface — requires the specified wear course and topcoat.
Purchasing Note: All sales are intended for professional and trade purchasers. Before ordering, confirm product availability and lead time, suitability, quantity, system compatibility, substrate condition, pickup timing and delivery requirements. Product use and installation are the responsibility of the purchaser and installer.

Canopus Supply Inc. — Sika Products · Pickup in North Vancouver; ships across Canada and the USA

Technical information is provided for professional reference only. Product selection, substrate preparation, installation method, coverage, cure time, system compatibility and final performance remain the responsibility of the purchaser, installer, project specifier and/or manufacturer documentation. Always confirm suitability against the current TDS, SDS, project specification and site conditions before use.
Sikalastic®-390 Liquid-Applied Waterproofing Base Membrane
Sikalastic®-390 Membrane | Liquid-Applied Waterproofing Base Membrane Sale price$597.26