Sikalastic® -110 | Bituminous Waterproofing (20kg)
Brand : Sika
Product Type : High elasticity, one part polyurethane bituminous waterproofing coating
Size : 20kg
Color : Black
Composition : Polyurethane bituminous hybrid
Density : 1.08 kg/L
Product Description :
Sikalastic®-110 is a water based one part modified polyurethane/bituminous coating, formulated to form a highly elastic, seamless and crack bridging membrane.
Usage:
Due to its high elasticity, Sikalastic®-110 can be applied on different structures including those subject to thermal movement and vibration such as:
- Concealed RC flat roof
- External walls to be buried below ground
- Waterproofing coating under tiles areas like podium, balconies and etc.
Features / Advantages:
- Easy application by roller, brush or sprayed, even onto vertical walls and ceiling
- High elasticity
- High crack bridging capability
- Optimum adhesion onto concrete
- Can be applied directly on damp surface
- Non-toxic
- Low VOC and eco-friendly
Shelf Life:
12 months from date of production
Storage Conditions:
Store properly in original, unopened, undamaged sealed packaging in dry condition at temperature between +5 °C and +30 °C. Protect from direct sunlight.
System Information:
Standard Coating System Consumption:
- Primer (Consumption : ~0.2 kg/m²) - dilute with 1 part clean water
- First Coat (Consumption : ~0.65 kg/m²)
- Second Coat (Consumption : ~0.65 kg/m²)
Reinforced Coating System Consumption:
- Primer (Consumption : ~0.2 kg/m²) - dilute with 1 part clean water
- First Coat (Consumption : ~0.8 kg/m²)
- Reinforcement Sika Reemat Premium-120 (1 layer)
- Second Coat (Consumption : ~0.5 kg/m²)
- Third Coat (Consumption : ~0.5 kg/m²)
Technical Information:
- Tensile Strength : ~1.5 N/mm² (without reinforcement)
- Elongation at break : ~1000 % (Without reinforcement)
Application Guide:
- Substrate Temperature : +5 °C min. / +40 °C max.
- Dew Point : The substrate and uncured membrane temperature must be at least 3 °C above the dew point to reduce the risk of condensation or blooming on the membrane finish.
- Substrate Moisture Content : < 6 % pbw
- Curing Time : 48 hours min. to full cure (at +25 °C)
- Waiting Time:
- After primer : 30–60 min min. ; 2 days max. (+30 °C)
- Between Coats : 4-8 hours min. ; 2 days max (+30 °C)
- Applied Product Ready for Use
- Sikalastic®-110 should be allowed to cure for min. 48 hours prior to overlaying with screed.
Application Steps:
Step 1 : Substrate Preparation
- New concrete should be cured at least 28 days and should have a pull off strength ≥ 1.5 N/mm².
- Substrate must be dry with < 6 % moisture and prepared mechanically to achieve an open textured surface.
- Substrate must be free of standing water and all contaminants such as dirt, oil, grease, coatings, laitance, surface treatments and loose friable material/
Step 2 : Mixing
- Mix Sikalastic®-110 manually or use a low speed mixer until it is completely homogeneous prior to application.
Step 3 : Application
Standard Coating System
- Dilute Sikalastic-110 with 1 part of clean water.
- Stir gently until the mix is homogenous and uniform colour is achieved.
- Apply a layer of diluted Sikalastic-110 onto the substrate using a short hair wool roller, brush or airless spray; and leave the primer to dry before applying the first coat.
- After primer is dried, apply another two layers of Sikalastic-110 to the desired film thickness.
- Leave the whole system to cure for around 48 hours prior to overlaying with cementitious screed.
Reinforced Coating System:
- Dilute Sikalastic-110 with 1 part of clean water.
- Stir gently until the mix is homogenous and uniform colour is achieved.
- Apply a layer of diluted Sikalastic-110 onto the substrate using a short hair wool roller, brush or airless spray; and leave the primer to dry before applying the first coat.
- Apply first coat of Sikalastic®-110 and embed Sika® Reemat® Premium-120 onto the wet coating, roll to ensure there are no bubbles or creases.
- The overlap between the edges shall be minimum 50mm and borders overlap by minimum 100mm.
- Next, apply an additional 2 coats of Sikalastic®-110 at desired film thicnkess.
- Leave the whole system to cure for around 48 hours prior to overlaying with cementitious screed.
Step 4 : Cleaning of Tools
Clean all tools and application equipment with water immediately after use. Hardened and/or cured material can only be mechanically removed.






































