Sikalastic-152.
Cementitious flexible fibre-reinforced mortar for waterproofing and concrete protection.
When it comes to safeguarding concrete, compromise is not an option. Water, salts, and freeze-thaw cycles can silently damage structures, causing cracks, corrosion, and costly repairs over time. Whether you’re waterproofing a bridge, protecting a basement, or preparing a swimming pool, you need a solution that’s flexible, strong, and dependable.
That’s exactly what Sikalastic®-152 delivers: a cementitious, polymer-modified, flexible, crack-bridging, fibre-reinforced mortar that combines waterproofing and concrete protection in a single, easy-to-apply system.
The Solution: Sikalastic®-152.
Engineered by Sika®, a global leader in construction chemicals, Sikalastic®-152 is designed for versatile waterproofing and protection applications across multiple environments, from residential wet rooms to industrial infrastructure.
Where Sikalastic®-152 works best?
- Water-retaining and exposed structures such as tanks, bridges, and concrete pipes.
- Protective, anti-carbonation coating for exposed concrete.
- Waterproofing layer beneath tiles in bathrooms, showers, terraces, balconies, and swimming pools.
- Internal waterproofing for basement walls and floors under low water pressure.
- Protection against de-icing salts and freeze-thaw damage on concrete surfaces.
Its dual functionality makes it a smart choice for contractors, architects, and engineers who need both durability and simplicity in one product.
Why Professionals trust Sikalastic®-152?
Sikalastic®-152 isn’t just another mortar, it’s the result of decades of innovation in cementitious coatings, moreover its advanced formula allows it to flex with your structure and maintain protection even under temperature fluctuations.
Key Benefits:
Flexible waterproofing and protection in one product: fewer materials, fewer steps.
Crack-bridging ability even at low temperatures (tested down to –10 °C).
Resistant to de-icing salts and carbon dioxide, prolonging the life of concrete.
Non-sagging formula: ideal for vertical and overhead applications.
Excellent adhesion to concrete, stone, masonry, and cementitious substrates.
Easy to mix and apply: no additional water required.
Eco-conscious: cementitious base with no harmful solvents.
CE certified under EN 14891 and EN 1504-2 standards.
Savings: Efficiency That Redefines Protection.
Every hour and every bag of material count on a construction site. Sikalastic®-152 saves time, labour and cost across every phase of your project.
- Simplified Process.
This 2-part system includes both the powder (Part B) and liquid polymer (Part A): no extra water needed. Just mix, apply, and let it cure. Its creamy consistency ensures smooth coverage on both horizontal and vertical surfaces, even on slightly damp substrates.
- Dual Functionality.
Why buy separate waterproofing and protective coatings when one product does both? Sikalastic-152 forms a flexible, crack-bridging barrier that also resists carbonation and chloride ingress, addressing two of concrete’s biggest enemies in a single step.
- Long-Term Value.
By preventing water ingress, salt attack, and microcracking, Sikalastic-152 significantly reduces maintenance costs and extends the service life of your concrete structures. The result: fewer repairs, less downtime, and more predictable project performance.
Technical Confidence, Simplified Application.
| Parameter | Value / Description |
| Mixing Ratio (A : B) | 8 : 25 (by weight) |
| Fresh Mortar Density | ~1.8 kg/L |
| Layer Thickness | ~3 mm in 2 coats (max 2 mm per layer) |
| Crack Bridging | 1.25 mm (+23 °C); 0.9 mm (–10 °C) |
| Tensile Adhesion Strength | ~1.5–3.0 MPa (varies by test condition) |
| Water Pressure Resistance | No penetration after 7 days at 1.5 bar |
| Carbon Dioxide Permeability | SD ≥ 50 m |
| Vapour Permeability | Class I (SD < 5 m) – breathable |
| Freeze/Thaw Resistance | ≥ 0.8 N/mm² |
| Fire Rating | Euroclass A2 |
| Colour | Grey |
| Packaging | Ready batched 26.4 kg units (6.4 kg Liquid + 20 kg Powder) |
Application of Sikalastic.
- Substrate Preparation.
Ensure the surface is sound, clean, and slightly damp (SSD). Remove dust, grease, and weak material. Repair cracks and voids with suitable Sika mortars before coating.
- Mixing.
- Shake Part A (liquid polymer) thoroughly.
- Pour half into a mixing bucket, slowly add Part B (powder) while mixing.
- Add the remaining liquid and mix for at least 3 minutes until smooth.
- Do not add extra water.
- Application.
- Apply the first coat using a trowel, roller, or spray at ~1.5 mm.
- Allow it to dry, then apply a second coat to reach ~3 mm total.
- Embed alkali-resistant glass fibre mesh in the first coat for high-stress zones (150–160 g/m²).
- Protect from rain for 24–48 hours.
- Curing and Overcoating.
At +20 °C, the coating can be tiled or painted after approximately 2 days.
Lower temperatures (around +10 °C) may require up to 7 days.
Performance Backed by Proof.
Tested under EN 14891 and EN 1504-2, Sikalastic-152 meets stringent European standards for liquid-applied waterproofing and surface protection systems.
After 2 000 hours of artificial weathering, the product showed no blistering, cracking, or flaking, only a slight colour change.
This proven performance has made Sikalastic®-152 a trusted choice in infrastructure, commercial, and residential projects worldwide.
What Professionals Are Saying
“We’ve used Sikalastic®-152 for tank waterproofing and basement protection — the crack-bridging and adhesion are unmatched.”
— Project Engineer, Durban Infrastructure Team“It’s a reliable all-in-one solution for waterproofing under tiles. Saves us time and reduces callbacks.”
— Contractor, Johannesburg“The fibre reinforcement gives confidence even on vertical surfaces. It just sticks and stays.”
— Waterproofing Specialist, Cape TownThese testimonials reflect what many in the field already know, Sikalastic®-152 simply performs.
Safety and Sustainability.
Sikalastic-152 is formulated with cement and polymer technology, avoiding harsh solvents. Once cured, it is environmentally safe and contributes to long-term sustainability by protecting concrete, one of the most resource-intensive materials, from premature degradation.
Always refer to the Safety Data Sheet for handling and disposal guidance.
Your Partner in Waterproofing Innovation.
With over a century of expertise, Sika® continues to lead the construction industry in performance, reliability, and sustainability. Every product is engineered with the precision and durability expected by professionals, Sikalastic®-152 is no exception.
It’s not just a waterproofing mortar, it is a trustworthy partner in every layer of your project.
Packaging: 26.4 kg (Part A + Part B)
Colour: Grey
Storage: 12 months from production in sealed, original packaging, stored dry at +5 °C to +35 °C.
Protect Concrete. Prevent Leaks. Prolong Life.
Choose Sikalastic®-152, the cementitious waterproofing system that merges strength, flexibility, and reliability in one seamless solution.
Your structures deserve the best defence against the elements, trust Sika to deliver it.
The Science Behind the Seal.
Sika’s engineering excellence lies in blending liquid polymers to achieve the perfect balance of flexibility, strength, and adhesion.
Each litre of Cemflex® delivers high-performance waterproofing through its reliable chemical composition.
| Specification | Details |
| Chemical Base | Blend of liquid polymers |
| Density | 1.04 kg/litre |
| pH Value | 8.0 |
| Appearance | Off-white liquid |
| Packaging | 1 L, 5 L, 25 L & 200 L containers |
| Shelf Life | 12 months (unopened) |
| Storage | Keep dry, between 5 °C – 35 °C, protected from sunlight |
Easy to Mix. Easy to Trust. Sika Cemflex.
Sika® Cemflex® simplifies waterproofing without compromising quality.
For waterproofing applications:
- Mix equal parts Cemflex® and water.
- Gradually add Portland cement while stirring to avoid lumps.
- Apply the slurry with a brush or roller over a clean, damp surface.
- Reinforce with Cemflex® Fabric for maximum strength.
- Apply additional coats as needed and allow to dry fully before exposure to water.
For bonding or bagging coats:
Mix Cemflex® and water (1:1), then combine with equal parts clean sand and cement.
Apply to damp brick or plaster surfaces and finish while the layer is still wet.
Coverage:
Waterproofing slurry: 1 L covers ≈ 1 m² (with membrane).
Bonding slurry: 4.5 L covers 8–10 m².
Application conditions:
Ambient 5 °C – 35 °C | Substrate 5 °C – 30 °C.
Performance You Can See and Feel.
Once applied, Sika® Cemflex® forms a dense, watertight coating that becomes part of the structure itself, not just a surface treatment. It flexes with the substrate to resist cracking and peeling, maintaining integrity under extreme weather, moisture, and temperature changes.
In fish ponds or reservoirs, ensure the surface is washed and conditioned before use to balance pH levels, protecting both your structure and aquatic life.
In wineries, used in tanks, cellars, or surfaces that do not come into direct contact with the wine.
Professional Results for Every Application.
Whether you are waterproofing a koi pond, restoring an old veranda, or applying a bonding layer before plastering, Cemflex® works with you, not against you.
It cures reliably under South Africa’s varying climates and remains stable under UV exposure, making it equally effective for indoor and outdoor projects.
For continuous submersion applications, allow the coating to cure for at least 48 hours before filling or immersion.
Why Midas Paints Paarl Recommends Cemflex®?
As a trusted Sika stockist, Midas Paints Paarl combines product knowledge with real-world experience. Our team understands the challenges of local construction, from Paarl’s summer heat to its damp winters and we recommend Cemflex® because it consistently delivers results our clients rely on.
When you buy Sika® Cemflex® from us, you’re not just getting a premium waterproofing solution, you’re getting expert guidance, local support, and access to Sika’s world-leading building chemistry.
Your Local Partner in Building Confidence.
At Midas Paints Paarl, we believe quality products deserve quality advice. Our specialists can help you:
Select the right Sika® product for your project.
Calculate accurate coverage and mixing ratios.
Provide technical sheets and application tips.
Recommend complementary waterproofing or finishing systems.
From small DIY repairs to large-scale construction, we help you achieve professional-grade results, every time.
Build. Seal. Protect.
With Sika® Cemflex®, your surfaces are more than just finished, they are sealed.
Available now at Midas Paints Paarl, your friendly, expert source for professional waterproofing products.
Where can I buy Sikalastic-152 in Paarl?
Cementitious flexible fibre-reinforced mortar for waterproofing and concrete protection.
For Waterproofing and Concrete Protection.
Where can I buy Sikalastic-152 Paarl?
Midas Paints Tygervalley 021 910 0134
64-70 Edward Street, Tygervalley, Bo Oakdale, Cape Town, 7530.
4J8P+H2 Bellville, Cape Town
Midas Paints Strand Somerset West 021 851 0913
7 Henry Vos Cl, Asla Park, Cape Town, 7140
VVV4+R9 Strand, Cape Town
Midas Pains Paarl 021 879 5095
41 Main Rd, Paarl, Cape Town, 7646
6XM6+W9 Paarl
Midas Paints Tygervalley, Paint Supplier Cape Town.
BORN OUT OF PASSION. MASTERED THROUGH TRADITION
Midas Paints Tygervalley
64-70 Edward Street, Tygervalley, Bo Oakdale, Cape Town, 7530.
Google Plus Code 4J8P+H2 Bellville, Cape Town
-33.883575, 18.635055
Call Midas Paints Tygervalley now 021 910 0134
Midas Paints Paarl, Paint Supplier.
BORN OUT OF PASSION. MASTERED THROUGH TRADITION
Midas Paints Paarl.
41 Main Rd, Paarl, Cape Town, 7646
Google Code 6XM6+W9 Paarl
-33.76518114873283, 18.96088235263178
Call Midas Paints Paarl 021 879 5095
Midas Paints Strand Somerset West.
BORN OUT OF PASSION. MASTERED THROUGH TRADITION
Midas Paints Strand Somerset West
7 Henry Vos Cl, Asla Park, Cape Town, 7140
Google Code VVV3+WM Strand, Cape Town
-33.76463329801787, 18.96255239828295
Call Midas Paints Strand Somerset West now 021 851 0913




