High elasticity, one part polyurethane bituminous waterproofing coating

Sikalastic®-110

$161.51
Sale price  $161.51 Regular price 
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High elasticity, one part polyurethane bituminous waterproofing coating

Sikalastic®-110

$161.51
Sale price  $161.51 Regular price 

Sikalastic®-110

A water-based, one-part modified polyurethane/bituminous coating that forms a highly elastic, seamless, and crack-bridging waterproofing membrane. Easy to apply by roller, brush, or airless spray on horizontal, vertical, and overhead surfaces.

Overview

Specifications

Property Value
Type 1-part water-based polyurethane/bituminous coating
Ambient Temperature +5°C min / +40°C max
Substrate Temperature +5°C min / +40°C max
Relative Humidity Max. 80% r.h.
Substrate Moisture <6% pbw (no rising moisture per ASTM D4263)
Curing Time Min. 48 hours to full cure at +25°C
Waiting Time After Primer 30–60 min (min) / 2 days (max) at +30°C
Waiting Time Between Coats 4–5 hours (min) / 2 days (max) at +30°C
Ready for Screed Overlay Min. 48 hours after final coat

Usage

  • Waterproofing membrane for roofs, terraces, and balconies
  • Below-grade waterproofing for basements and retaining walls
  • Wet rooms, bathrooms, and podium decks
  • Surfaces subject to crack movement and structural settlement
  • Not suitable for water-retaining structures (RC tanks, swimming pools) or areas with permanent water immersion

Advantages

  • High elasticity and crack-bridging capability
  • Easy application by roller, brush, or airless spray – including vertical walls and ceilings
  • Seamless, fully bonded waterproofing membrane
  • One-part – no mixing required (except dilution for primer coat)
  • Can be overlaid with cementitious screed after 48 hours

Packaging

  • 20 kg / pail

Colour

  • Black

Product Details

Product Information

Property Detail
Composition Water-based modified polyurethane/bituminous coating (1-part)
Substrate Moisture Limit <6% pbw – tested via Sika®-Tramex meter, CM measurement, or oven-dry method
Curing Time Min. 48 hours at +25°C

Technical Information

System Layer Product Consumption
Standard Coating Primer Sikalastic®-110 diluted 1:1 with clean water ~0.2 kg/m²
1st Coat Sikalastic®-110 undiluted ~0.65 kg/m²
2nd Coat Sikalastic®-110 undiluted ~0.65 kg/m²
Reinforced Coating Primer Sikalastic®-110 diluted 1:1 with clean water ~0.2 kg/m²
1st Coat Sikalastic®-110 undiluted ~0.8 kg/m²
Reinforcement Sika® Reemat Premium-120 1 layer
2nd Coat Sikalastic®-110 undiluted ~0.5 kg/m²
3rd Coat Sikalastic®-110 undiluted ~0.5 kg/m²

Application

Application Information

Parameter Value
Ambient Temperature +5°C min / +40°C max
Relative Humidity Max. 80% r.h.
Substrate Temperature +5°C min / +40°C max
Substrate Moisture <6% pbw (no rising moisture – ASTM D4263)
Dew Point Substrate and uncured membrane must be min. 3°C above dew point
Curing Time Min. 48 hours at +25°C
Waiting Time After Primer 30–60 min (min) / 2 days (max) at +30°C
Waiting Time Between Coats 4–5 hours (min) / 2 days (max) at +30°C
Ready for Screed Overlay Min. 48 hours after final coat

Consumption

  • Standard system: ~1.5 kg/m² total (primer + 2 coats)
  • Reinforced system: ~2.0 kg/m² total (primer + 3 coats + Reemat reinforcement)
  • In hot/dry conditions (>40°C, ~50% r.h.), reduce to max. 0.5 kg/m² per coat or apply when temperature is below 35°C
  • Figures are theoretical and exclude allowances for surface porosity, profile, and wastage

Application Steps

  • Substrate Preparation: New concrete must be cured min. 28 days with pull-off strength ≥1.5 N/mm². Surface must be dry (<6% moisture), mechanically prepared to open texture, free from standing water, oil, grease, coatings, laitance, and loose material. Remove all existing membranes by industrial vacuuming. Repair blowholes and voids fully.
  • Mixing: Mix Sikalastic®-110 manually or with a low-speed mixer until completely homogeneous before application.
  • Standard Coating System: Dilute with 1 part clean water for primer coat (~0.2 kg/m²). Apply by short hair wool roller, brush, or airless spray. Allow to dry, then apply 2 coats of undiluted Sikalastic®-110 (~0.65 kg/m² each), ensuring each coat is completely dry before the next. Allow full system to cure 48 hours before screed overlay.
  • Reinforced Coating System: Apply primer as above. Apply 1st coat (~0.8 kg/m²) and embed Sika® Reemat Premium-120 into the wet coating. Roll to remove bubbles and creases. Overlap edges min. 50 mm, borders min. 100 mm. Apply 2nd and 3rd coats (~0.5 kg/m² each). Allow 48 hours before screed overlay.
  • Cleaning: Clean all tools with water immediately after use. Hardened/cured material can only be removed mechanically.

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