Rubber waterproof coatings are one- or two-component liquid waterproofing materials based on synthetic rubber latex (such as styrene-butadiene rubber and chloroprene rubber) or polymer elastomers (such as polyurethane and acrylates) through a special modification process. They cure at room temperature (completely curing in 24-48 hours at 25°C), and some products can be applied at low temperatures (5°C) or in humid environments. They offer tensile strengths of 2-6 MPa and elongations at break of 300%-1000%, and can adapt to minor deformations of the substrate.
1. Excellent Waterproofing Performance
High Elasticity and Extensibility: The coating boasts an elongation at break of 300%-1000%, resisting leakage caused by expansion and contraction of the base layer and cracking.
Seamless Connection: Spraying or brushing creates a continuous waterproof layer, eliminating water leakage through the membrane's seams and joints.
Self-Healing: Some products (such as high-elastic rubber waterproof coatings) have a self-healing rate of up to 90%, automatically healing after damage, reducing subsequent repairs.
2. Excellent Physical Properties
Weatherproof: Resistant to UV rays and alternating heat and cold, with a service life of 15-30 years (e.g., Fordis brand water-based rubber waterproof coatings offer a service life of up to 30 years).
Impact Resistance: The coating remains crack-free under a 50kg·cm impact force, making it suitable for heavy loads.
Chemical Resistance: Withstands immersion in 10% sulfuric acid and 5% sodium hydroxide solutions for 60 days without any changes, making it suitable for the chemical industry.
3. Environmental Protection and Construction Advantages
Water-based: Non-toxic, odorless, and pollution-free, meeting national environmental standards (e.g., extremely low VOC emissions). Cold application is safe: Cures at room temperature, requires no open flame, has low odor, and is harmless to workers.
Short construction period and high efficiency: Cures quickly, saving time and costs.
4. Wide applicability
Strong substrate compatibility: Bonds to a variety of materials, including concrete, cementitious surfaces, metal, glass, and ceramics.
Complex surface application: Applicable to damp (moisture content <10%) and slightly uneven surfaces, overcoming the limitations of traditional materials.
Versatile applications:
Architectural waterproofing: Roofs, basements, bathrooms, kitchens, balconies, etc.
Infrastructure: Subways, tunnels, bridges, pools, and through-wall pipes.
Industrial applications: Corrosion-resistant waterproofing for chemical plants, sewage treatment plants, and high- and low-temperature pipelines.
5. Economical and easy maintenance
Cost savings: High solids content and high coverage rate. A 1.5mm thick coating requires approximately 1.5-2.1kg/㎡.
Easy local repair: Damaged areas can be repaired directly by painting, eliminating the need for complete renovation. Strong puncture resistance: The special molecular structure determines its excellent puncture resistance, making it suitable for scenarios where sharp objects come into contact.