PVC Membrane

PVC waterproofing membrane is based on polyvinyl chloride resin with plasticizers and stabilizers. It offers high strength, good elongation, and excellent root resistance. Colored surfaces provide decorative and energy-saving benefits. Hot-air welding creates a monolithic seal for rapid installation. Widely used in roofs, basements, civil defense works, and green roofs. We offer reinforced and non-reinforced PVC membranes, along with prefabricated accessories, to meet various load and design requirements. High-performance and self-adhesive series further enhance suitability for special environments.

TYPES OF PVC MEMBRANES

KIN PLUME DR

Synthetic PVC-P membrane obtained by co-extrusion. Naturally fire resistant, self-extinguishing, and resists flame spread. Features high tensile strength, high elongation, low shrinkage, and good flexibility at low temperatures.

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Fire Resistance of PVC Waterproofing Membrane

Inherent Flame Retardancy

Firstly, PVC material itself possesses flame-retardant properties. Its chlorine content makes the membrane difficult to ignite and gives it self-extinguishing characteristics. When the ignition source is removed, the material quickly stops burning, effectively preventing flame spread. This property enables PVC waterproofing membranes to meet strict building fire codes, making them particularly suitable for roofing projects with fire resistance requirements, such as public buildings, commercial complexes, and high-rise structures.

Non-Dripping and Charring Behavior

Secondly, PVC waterproofing membrane does not produce molten drips when exposed to fire, eliminating the risk of secondary fires caused by burning droplets common with traditional materials. Meanwhile, the char layer formed on the membrane surface acts as a barrier, delaying heat transfer to the substrate. This stable combustion behavior buys valuable time for fire rescue operations and significantly enhances the fire safety rating of the entire roofing system, reducing safety hazards during fire incidents.

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Chemical Resistance of PVC Waterproofing Membrane

Resistance to Acids, Alkalis, and Salts

On one hand, PVC material exhibits good resistance to various chemical media including acids, alkalis, and salts. In locations with chemical exposure risks such as chemical plants, electroplating workshops, or laboratories, PVC waterproofing membrane can resist penetration and erosion from corrosive liquids, maintaining the integrity of the waterproof layer. Its dense molecular structure effectively blocks chemical substances from damaging the concrete substrate, extending the building structure's service life and reducing production losses from frequent repairs.

Resistance to Oils, Greases, and Solvents

On the other hand, PVC waterproofing membrane also demonstrates strong resistance to greases, mineral oils, and various industrial solvents. In areas such as machine shops, parking garages, or oil depots, the membrane does not swell, soften, or degrade upon contact with oil contaminants. This chemical stability ensures the long-term reliability of the waterproofing layer in complex industrial environments, making it particularly suitable for floor and roof waterproofing in industrial facilities that must withstand both mechanical wear and chemical attack.

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Resistance to Oils, Greases, and Solvents

Seam Strength of PVC Waterproofing Membrane

PVC waterproofing membrane utilizes hot-air welding technology for seams, where high temperature melts and fuses the lapped areas, creating a homogeneous connection matching the parent material. The welded seam strength can reach or even exceed that of the membrane itself, achieving truly seamless waterproofing. This homogeneous fusion avoids the delamination or aging issues possible with adhesive bonding, ensuring reliable sealing even under long-term water pressure or substrate deformation, fundamentally eliminating the risk of water migration.