Sika Ronacrete Ronafix
Sika Ronacrete Ronafix
📋 Product specifications are for reference only.
All product details should refer to the official manufacturer documents. For official product data sheets or technical enquiries, please contact us via WhatsApp.
Ronafix® is Sika Ronacrete's classic SBR mortar admixture, commonly known as cement additive. When added to cement mortar, it significantly improves waterproofing, bond strength and mechanical strength. Allows thin section application, waterproof and freeze-thaw resistant when cured, suitable for internal and external works.
Ronafix Product Features
Ronafix® is a single-component modified styrene butadiene (SBR) liquid admixture manufactured by Ronacrete, which significantly enhances the physical and chemical properties of cement mortars. Mortars containing Ronafix can be applied in thin sections. When cured, the mortar is waterproof and resistant to freeze-thaw cycles, achieving monolithic adhesion to concrete, brickwork and other substrates. Ronafix is supplied as a milky white liquid, diluted with water at specified ratios before adding to cement mortar. As a leading cement additive product, Ronacrete Ronafix enjoys high recognition in the Hong Kong construction industry.
- Long-established product with extensive proven track record
- Mortar can be applied in thin sections
- High compressive, tensile and flexural strength
- Waterproof and freeze-thaw resistant when cured
- Monolithic adhesion to building substrates
- Enhanced resistance to mild chemical attack for mortars, renders and screeds
- Low volatile organic compounds (VOC)
- Suitable for internal and external works
Applications
- Floor Screeds — Thin to thick section high-strength floor repair and installation
- Concrete Repair — Spalling and concrete patch repairs
- Waterproof Rendering — Bathroom, rooftop and basement waterproof rendering
- Slurry Coatings — Levelling and protective slurry layers
- Heavy-Duty Flooring — Car parks, warehouses and high-load wear-resistant floors
- Rebar Protection — Anti-corrosion primer and protective coating for reinforcement
- Bedding and Bonding Mortar — Enhanced tile adhesion
- Waterproofing and Leak Repair — Water tanks, basement waterproofing
- Spatterdash — Base coat to improve adhesion
- Bond Coat — Bonding primer between old and new concrete
- Rebar Primer — Protection of exposed reinforcement
Why Choose Ronafix
| Product | Brand | Type | Features |
|---|---|---|---|
| Ronafix | Sika Ronacrete | SBR Modified | Classic formula, long-term proven, high compressive strength |
| SikaLatex | Sika | Synthetic Rubber Latex | Improves bond, reduces shrinkage |
| Nitobond SBR | Fosroc | SBR Latex | Industrial-grade mortar improvement, suitable for tiling |
| Planicrete Latex | Mapei | Synthetic Rubber Latex | Improves mechanical/adhesion/waterproofing |
| Kangaroo Brand | Kangaroo | Polymer Emulsion | Economical, suitable for general waterproofing |
Packaging
| Item | Specification |
|---|---|
| Pack Size | 5 litre pail, 30 litre drum or 220 litre drum |
| Appearance/Colour | Milky white liquid |
Application Method
- As a mortar admixture — Mix Ronafix with water at the specified ratio, then add cement and sand to produce mortar
- As a primer/bond coat — Mix Ronafix with cement only (no sand) and brush onto substrate to enhance mortar adhesion
- Mixing ratios — Varies by application; refer to product technical data sheet
Notes: Ambient and substrate temperatures must be within suitable range during application and curing. Ronafix must be stored in undamaged, unopened original sealed packaging, protected from direct sunlight and frost. For detailed application methods, coverage rates and technical parameters, please refer to the official product data sheet
FAQ
What is the difference between Ronafix and generic cement additives?
Cement additive is a generic term in the Hong Kong construction industry for SBR mortar admixtures. Ronafix is Ronacrete's premium product. Compared to generic alternatives, Ronafix delivers higher compressive and flexural strength, with quality proven over an extensive track record.
Why is Ronafix called "milk water"?
Because Ronafix is a milky white SBR liquid admixture that resembles milk in appearance, it is colloquially known as "milk water" in the industry. To use, mix the milk water (Ronafix) with clean water at the specified ratio, then add to cement mortar.
Is Ronafix waterproof?
Yes. Cement mortar containing Ronafix is waterproof when cured and resistant to freeze-thaw cycles. Per manufacturer data, water vapour permeability is significantly reduced (per manufacturer). Suitable for bathroom waterproof rendering, rooftop waterproofing, basement waterproofing and water tank leak repair.
How do I use Ronafix? What ratios?
Mix Ronafix with clean water at the specified ratio, then add cement and sand. As a primer, mix Ronafix with cement only (no sand) and brush onto substrate. For detailed ratios, refer to product technical data sheet or contact us via WhatsApp.
How much does Ronafix cost?
Please contact us via WhatsApp for the latest pricing and ordering details. We offer in-store pickup at our Mong Kok shop and delivery across Hong Kong.
