Sikalastic 110 Bituminous Waterproofing Coating 20KG

Sikalastic 110 — High Elasticity One-Part Polyurethane Bituminous Waterproofing Coating

🔍 Product Description

Sikalastic 110 is a one-part, water-based polyurethane bituminous waterproofing coating designed to form a highly elastic, seamless and crack-bridging membrane after curing. It is supplied ready to use and does not require the addition of hardeners or solvents.

Once applied, Sikalastic 110 cures to form a continuous flexible membrane that is able to accommodate normal structural movement, vibration, and hairline cracking in concrete substrates. Because it is liquid-applied, the membrane has no joints or overlaps, reducing common leakage risks associated with sheet systems.

This product is intended for concealed waterproofing applications and must be protected by screed, tiles, or other coverings after curing. Contact Us

🧱 What Is Sikalastic 110 Used For?

Sikalastic®-110 is used as a protective waterproofing coating on concrete structures where flexibility and crack-bridging performance are required. It is particularly suitable for areas that experience thermal movement or vibration.

✅ Typical Areas of Use

🏢 Concealed reinforced concrete (RC) flat roofs
🧱 External walls buried below ground level
🏗️ Waterproofing under tiles, such as:

• Podium decks

• Balconies

• Similar concealed tiled areas

⚠️ Important limitations

• Not suitable for water-retaining structures (e.g. tanks, pools)

• Not suitable for permanent water immersion

• Not suitable for permanent UV exposure

• Designed as a concealed system only

⭐ Key Characteristics & Advantages

🖌️ Easy Application
Can be applied by roller, brush, or airless spray, including vertical surfaces and ceilings.

🧘 High Elasticity
Maintains flexibility after curing, allowing it to bridge cracks and accommodate movement.

🔗 Crack Bridging Capability
Effectively bridges existing and future hairline cracks in concrete.

🧱 Good Adhesion to Concrete
Provides reliable bonding to properly prepared concrete substrates.

💧 Application on Damp Substrates
Can be applied directly onto damp surfaces (no standing water).

🌱 Low VOC & Environmentally Friendly
Water-based, non-toxic formulation. Certified under Singapore Green Label as an environmentally preferred coating.

📦 Product Information & Packing Details

📦 Packaging

• 20 kg pail

🎨 Colour

• Black

🧪 Composition

• Polyurethane bituminous hybrid

⚖️ Density

• Approx. 1.08 kg/L

📆 Shelf Life

• 12 months from date of production

🏬 Storage Conditions
Store in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +30 °C. Protect from direct sunlight.

🛠️ How to Use Sikalastic 110 (Clear & Simple)

🧹 1. Surface Preparation

• Concrete must be minimum 28 days old

• Substrate must be sound, clean, and free from dust, oil, grease, laitance, coatings, and loose material

• No standing water allowed

• Substrate moisture content must be ≤ 6%

• Substrate must not have rising moisture

🧴 2. Priming Layer

• Dilute Sikalastic®-110 with 1 part clean water

• Mix gently until uniform

• Apply evenly by roller, brush, or spray

• Typical consumption: ~0.2 kg/m²

• Allow primer to dry before coating

🖌️ 3. Standard Coating System

• First coat:
  Undiluted Sikalastic®-110
  Consumption: ~0.65 kg/m²

• Second coat:
  Undiluted Sikalastic®-110
  Consumption: ~0.65 kg/m²

Ensure each layer is fully dry before applying the next.

🧵 4. Reinforced Coating System (When Required)

Used for areas with higher movement or crack risk:

• Apply first coat of Sikalastic®-110

• Embed Sika® Reemat® Premium-120 into the wet coating

• Ensure overlaps (minimum 50 mm)

• Apply additional coats to fully encapsulate the reinforcement

⏱️ Curing & Overcoating

⏳ Minimum curing time:

• 48 hours at +25 °C before overlaying with cementitious screed

⏳ Recoating time:

• Observe minimum and maximum waiting times between coats as specified

Curing time may vary depending on temperature, humidity, and ventilation.

⚠️ Important Application Notes

• Protect applied material from rain before full cure

• Do not allow ponding water between coats

• Do not add extra water or other ingredients (except for priming)

• Avoid application in areas with permanent UV exposure

• Not suitable for constant or permanent water immersion

✅ Conclusion

Sikalastic®-110 is a reliable, high-elasticity, liquid-applied waterproofing coating designed for concealed concrete structures. Its seamless application, strong adhesion, and excellent crack-bridging capability make it a practical solution for flat roofs, podiums, balconies, and below-ground walls that require flexible protection.

When applied in accordance with recommended procedures, Sikalastic®-110 provides durable waterproofing performance while maintaining ease of application on site.