Sika Sikalastic 488/488SL

Moisture-curing single-pack elastomeric polyurethane waterproofing membrane for foot traffic

$15-$24 (2 coats)

Coverage: 0.5-0.6 litres/m2 (per coat)

Sikalastic-488/488SL is a high performance, hand-applied, low VOC, moisture-curing single-pack elastomeric polyurethane waterproofing membrane. Sikalastic-488/488SL is directly foot-trafficable.
  • Overview


  • Description


    • Balconies
    • Terraces
    • Podium decks
    • Bathrooms and wet areas
    • Plant room floors
    • Inverted roofs
    • Undertile beds


    • UV resistance
    • Seamless membrane
    • High resistance to puncture and standing water
    • Quick tack-free surface
    • Low VOC
    • High elongation, class III membrane according to AS/NZS 4858
    • Crack bridging capability, no reinforcement needed
    • Elastomeric behaviour
    • Single pack, ready to use
    • Available in various colours


    Direct application of tile adhesive is not recommended.

    Sikalastic 488/488SL performance is not compromised when exposed to UV light, however it may discolour and some chalking of the surface may occur. Sikalastic 489 is recommended as a top coat where these affects are to be prevented.

  • Performance


  • Compliances and Accreditations


    • AS 4858
  • Systems & Installation


    Foot Traffic

    Primer: A layer of diluted Sikalastic -488/488SL membrane (with 10% Thinner C) can be used as a primer for dry and contaminants-free concrete. In the case of high porosity, it is recommended to use an epoxy primer. Sikafloor-160 epoxy primer in accordance to the current product datasheet.

    First coat: Sikalastic 488/488SL (0.5 - 0.6 litres /m2, DFT 0.5 mm, 12 hours drying time until second coat.

    Second coat: Sikalastic 488/488SL (0.5 - 0.6 litres /m2, DFT 0.5 mm, 24 hours drying time until second coat.

    Vehicle Traffic

    Primer: Sikafloor-160

    Basecoat: Sikalastic 488 (0.5 - 0.6 litres / m2, DFT 0.5 mm, 24 hours drying time until second coat)

    Wear layer - Sikalastic 489 @ 0.3 - 0.4 litres / m2 and broadcasted with Sikadur 505* @ 3 - 5kg / m2,

    Seal Coat - Sikalastic 489 @ ~ 0.5 - 0.7 litres / m2

    *aggregate addition to suit non-slip requirement


    Sikalastic® -488/488SL can be applied with a brush or a roller to the desired thickness.

    2 coats of 0.5 - 0.6 litres /m2 are required to achieve a dry film thickness of 1 mm.

    Sikalastic® -488/488SL can be subject to light traffic after 24 hours.

    Sikalastic® -488/488SL can be directly trafficable due to its high resistance to puncture and hardness.


  • Compatible Products

  • Spec Clause

  • Projects & Installers

    Project Showcase

    Sydney Cricket Ground, Moore Park, NSW

    Sikalastic-488 and Sikalastic-489, Sika's high performance, UV stable waterproofing membrane was applied to the upper entertainment deck.

  • Downloads

    Sika Sikalastic 488/488SL

    Single-Pack Aliphatic Top Coat for Vehicle and Heavy Foot Traffic

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