Flexible Cementitious Waterproofing Membrane

Flexible Cementitious Waterproofing Membrane

This Flexible cementitious waterproofing membrane is a high-performance, two-component system that creates a seamless, rubber-like barrier when cured. With more than 60 national patents in our portfolio, we have optimized the ratio of specialized polymers to cementitious binders, ensuring that our membrane remains flexible even in freezing temperatures or under high hydrostatic pressure.
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Description

Product Description

 

As a National High-Tech Enterprise founded in 2003, we have discovered through over 20 years of construction practice that hollowing and peeling of the base layer are the most stubborn "invisible killers" in the engineering world. This Concrete Interface Primer is our core solution, integrating our dual advantages in material science and structural mechanics. We reject the low-concentration generic formulas common in the market. Instead, relying on our more than 60 national patents, we developed a unique penetrating polymer system. This technology acts like capillaries, penetrating deep into the concrete substrate to transform a loose surface into a solid structural layer, laying a foolproof foundation for subsequent construction.

 

Our empirical data from major projects in the East China region shows that pre-treating surfaces with this Concrete Interface Primer increases bonding strength by more than 35%, significantly reducing long-term maintenance costs. On the production side, we adhere to a self-developed refined mixing and formula control system, ensuring that the chemical stability of every batch remains unaffected by external environmental fluctuations. For our overseas partners, we provide more than just a high-quality Concrete Interface Primer; we offer a mature engineering quality assurance system that allows your brand to stand out in a competitive market through a reputation for "zero hollowing."

 

Specifications

 

Technical Metric

Specification

Elongation at Break

≥ 100%

Tensile Strength

≥ 1.5 MPa

Bonding Strength (Wet Substrate)

≥ 1.0 MPa

Water Impermeability (0.3MPa, 30min)

No Leaks

Toxicity

Non-toxic, suitable for potable water tanks

Curing Time

24 - 48 hours for full strength

 

Application Fields

 

This flexible membrane is the ultimate choice for high-movement areas, including balconies, terraces, rooftop gardens, and expansion joints. It is also exceptionally well-suited for waterproofing large swimming pools, underground foundations, and internal wet areas in high-rise buildings. Its excellent adhesion and flexibility make it a perfect base for tiling, especially in environments subject to thermal shock or vibration.

 

Factory Strength

 

As one of the earliest and largest specialized production bases for dry-mix mortar and construction additives in Zhejiang Province, we not only possess modern intelligent manufacturing workshops but have also been recognized as a Municipal Enterprise R&D Center. More than 20 years of deep cultivation have allowed us to accumulate a profound manufacturing foundation, with an annual production capacity that ranks among the top in the industry. Since our first production line went into operation in 2003, we have maintained a strict respect for cutting-edge technology, ensuring that every drum leaving our factory represents the true standard of high-end Chinese manufacturing.

 

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Our Lab
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Our Factory

 

Quality Control

 

Our commitment to quality is absolute. Each component of the Flexible cementitious waterproofing membrane is produced in our specialized Deqing facility under strict ISO monitoring. We use advanced computerized rheology tests and tensile strength equipment to verify that every batch meets our high internal standards-standards that have been shaped by 20 years of resolving construction failures. This internal rigor ensures that the flexibility and durability of our membrane are consistent drum-after-drum, giving your customers total confidence in their waterproofing.

 

Packing & Shipping

 

We prioritize the safety and stability of our products during international transport. The liquid polymer is stored in reinforced, impact-resistant drums, and the specialized powder is packed in multi-layered, moisture-proof bags. We use optimized pallet loading and comprehensive shrink-wrapping to ensure that your shipment remains intact and contaminant-free from our factory to your warehouse. Our proximity to the Ningbo and Shanghai ports ensures a fast and reliable supply chain for your business.

 

FAQ

Q: What is the difference between this flexible membrane and a standard slurry?

A: The flexible membrane has a much higher polymer-to-cement ratio, giving it the ability to stretch and bridge cracks up to 2mm. It is designed for areas that move or vibrate, whereas standard slurry is for more rigid substrates.

Q: Can it be applied to a damp surface?

A: Yes, one of the primary advantages of our cementitious system is its excellent bond to damp (but not saturated) concrete. This allows construction to proceed even after recent rain or in high-humidity environments.

Q: Is it UV resistant for roof applications?

A: While it is highly resistant to environmental degradation, we generally recommend covering the membrane with a protective screed or tiles if used on an exposed rooftop to ensure the longest possible service life.

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