Sika Ronacrete Monoprufe WS
Sika Ronacrete Monoprufe WS
Monoprufe® WS is a flexible cementitious waterproofing slurry by Sika Ronacrete. This two-component system is simply mixed on site and applied by spray, roller or brush. Slightly flexible, impermeable, and compatible with cement-based substrates. Ideal for bathrooms, basements, swimming pools and water-retaining structures. Non-toxic, low VOC, contributes to LEED certification.
Monoprufe WS Product Features
Monoprufe® WS is a cement-based polymer modified waterproofing system in the Sika Ronacrete range. Supplied as two components (powder and liquid), it is simply mixed on site to form a highly workable coating that is applied to concrete and mortar substrates to prevent water ingress.
- Suitable for horizontal and vertical application
- Easy to mix and apply
- Waterproofs static cracks and capillaries
- Compatible with cement-based substrates and render
- Slightly flexible — accommodates minor structural movement
- Good adhesion
- Impermeable
- Multiple application methods — spray, roller or brush
- Non-toxic, low VOC
- Can contribute to LEED certification
Applications
- Bathrooms — floor and wall waterproofing
- Basements — below-grade waterproofing and damp-proofing
- Retaining walls — underground structure waterproofing
- Balconies — outdoor terrace waterproofing
- Swimming pools — pool wall and floor waterproofing
- Water-retaining structures — tanks and reservoirs
Why Choose Monoprufe WS
Monoprufe® WS combines flexibility with impermeability to effectively seal static cracks and capillaries. The two-component design ensures consistent on-site mixing quality, with three packaging sizes to suit different project scales. Tested to HKHA MTS specifications for adhesion and waterproofing performance, it can also be used in conjunction with Sika® SealTape F for enhanced water tightness in wet areas.
Packaging
| Pack Size | Powder | Liquid | Total Weight |
|---|---|---|---|
| Small | 10 kg | 4.6 kg | 14.6 kg |
| Medium | 15 kg | 6.9 kg | 21.9 kg |
| Large | 20 kg | 9.2 kg | 29.2 kg |
Technical Specifications
| Property | Value | Test Standard |
|---|---|---|
| Type | Flexible cementitious polymer-modified waterproofing slurry | — |
| Brand | Sika Ronacrete | — |
| Components | Two-component (powder + liquid) | — |
| Tensile Strength | > 1 MPa | ASTM D412 |
| Elongation at Break | > 50% | ASTM D412 |
| Tensile Adhesion Strength | > 0.5 MPa | HKHA MTS Part D Clause 2.1.14 |
| Water Penetration Under Pressure | 0 mm (at 0.5 MPa) | DIN 1048 |
| Consumption | 1 kg/m²/coat, apply two coats | — |
| Application Temperature | > 5°C | — |
| Application Method | Spray / roller / brush | — |
| Shelf Life | 9 months from date of production | — |
| Storage Conditions | 5–35°C, original sealed packaging, protect from sunlight and frost | — |
Monoprufe WS vs WP vs WM
| Product | Flexibility | Best For | Key Feature |
|---|---|---|---|
| Monoprufe WS | Slightly flexible | Bathrooms / basements / pools | General-purpose waterproofing slurry, LEED certification |
| Monoprufe WP | Highly flexible | Pools / tanks / basements | Cold-applied flexible waterproofing membrane |
| Monoprufe WM | Standard | Kitchens / bathrooms / tanks | Waterproofing mortar, 24-hour hardening |
Notes
- Remove all grease, oil and loose particles from the substrate before application; dampen absorbent substrates with clean water.
- Apply in two coats; the second coat should be applied at right angles to the first, with 2–4 hours curing between coats.
- Avoid application in strong direct sunlight or drying winds. Do not re-work or add water.
- Sika® SealTape F is recommended for use with Monoprufe® WS to achieve enhanced water tightness in and around wet areas.
- Clean all tools and equipment with clean water immediately after use.
- Data is based on laboratory tests; actual performance may vary due to site conditions.
FAQ
What is the difference between Monoprufe WS and WP?
WS is slightly flexible and suitable for general bathroom and basement waterproofing. WP offers higher flexibility to accommodate greater structural movement, making it more suitable for swimming pools and tanks. Both are Sika Ronacrete waterproofing products.
What Sika Ronacrete waterproofing products are available?
The Sika Ronacrete waterproofing range includes: Monoprufe WS (general-purpose waterproofing), Monoprufe WP (high-flexibility waterproofing), Monoprufe WM (waterproofing mortar), and Monoprufe RTU 801 (ready-to-use). Select the appropriate product based on project requirements.
How much does Monoprufe WS cost?
Please contact us via WhatsApp for the latest pricing. We offer in-store pickup at our Mong Kok location and delivery across Hong Kong.
