Overview
Plastic cement is a specialized construction material engineered by blending Portland cement with synthetic polymers such as styrene-butadiene rubber (SBR) or ethylene-vinyl acetate (EVA). These additives impart elasticity and improved bonding properties, making it ideal for applications requiring resistance to cracking and water penetration. Unlike conventional cement, it adapts to substrate movements, reducing long-term maintenance costs. First developed in the mid-20th century, plastic cement has become a staple in modern construction, particularly for waterproofing and tile installations. Its versatility extends to both residential and industrial projects, including bridges, basements, and swimming pools.
Physical and Chemical Properties
Plastic cement exhibits a unique combination of mechanical strength and flexibility due to its polymer matrix. The compressive strength typically ranges from 20–40 MPa, while tensile strength is 2–4 times higher than ordinary cement. Its water-resistant nature stems from the hydrophobic polymers that fill capillary pores in the cementitious matrix. The material’s setting time varies with polymer content (usually 3–12 hours for initial set). It maintains stability across temperatures from -20°C to 60°C, though prolonged UV exposure may degrade certain polymer types. Compatibility with pigments allows colored formulations for aesthetic applications.
Main Applications
In flooring systems, plastic cement is used as a self-leveling underlayment or crack-isolation membrane. Its flexibility accommodates thermal expansion in large-area pours, preventing delamination. For waterproofing, it serves as a base coat for liquid-applied membranes in bathrooms, balconies, and wastewater tanks. The adhesive variant, often pre-mixed with additives like silica sand, bonds ceramic tiles and stone claddings with reduced risk of hollow spots. Civil engineering applications include bridge deck overlays and joint fillers, where vibration resistance is critical. Repair mortars formulated with plastic cement effectively patch spalled concrete in high-traffic zones.
Safety and Storage
Handling plastic cement requires standard masonry PPE: nitrile gloves, N95 masks, and safety goggles to prevent skin irritation or respiratory issues from alkaline dust. Wet mixing minimizes airborne particles. Spills should be contained and disposed of as non-hazardous waste once hardened. Unopened bags remain stable for 6–12 months if stored on pallets in a low-humidity environment. Post-opening, reseal bags with waterproof tape to prevent moisture absorption, which can trigger premature curing. Bulk silo storage demands airtight systems with desiccant filters.
B2B Procurement Guide
Bulk buyers should prioritize suppliers offering batch consistency certificates, as polymer dispersion quality directly impacts performance. Key specifications to verify include bond strength (≥1.0 MPa per ASTM C882) and elongation-at-break (≥5%). For large projects, opt for just-in-time delivery to avoid long-term storage. Regional availability of raw polymers may affect pricing—SBR-based cements dominate in North America, while EVA variants are common in Asia. Consider blended procurement for cost-sensitive applications like screeds versus premium polymers for critical waterproofing. MOQs typically start at 20 metric tons for direct-factory purchases.
Related Manufacturers
- 主营：[]
- 主营：复合袋子、复合包装袋、纸塑复合袋、砂浆化工纸塑袋、牛皮纸编织袋、双层防水编织袋、内袋包装纸塑袋、工程汽车用品袋
- 主营：福美钠、漂白粉、次氯酸钠、白水泥生产厂家、强氯精、漂粉精、DOP、DBP、蛋白胨
- 主营：蛋白栋、DOP、玻璃粉、白水泥325、福美钠、黄糊精、硫酸钡、漂白粉、漂粉精、强氯精、优氯净、早强剂
- 主营：杀菌剂、椰子油、印染剂、零加一化工厂家、阻燃剂、油酸锌、润湿剂、硫酸铯、催化剂、粘合剂、乳化剂、草酸锰、硫酸锂、石英砂、绝缘油、茶皂素、防腐剂、醋酸镁、锂电池、碘化锂、培养基、蒸馏水、硬脂酸、塑化剂、草酸钾、磷酸铁
- 主营：蛭石、云母、漂珠、化工石粉、硅藻土、膨润土、高岭土、防火涂料、萤石、石英砂、麦饭石、铝矾土、电气石、彩砂、鹅卵石、海泡石、重钙粉、重晶石、木粉、蛭石粉、氧化钙、生物质颗粒、贝壳彩片、莫来砂、蛭石板、沸石粉
- 主营：絮凝剂、碳酸钠、除磷剂、无水醋酸钠、聚合硫酸铁、液体乙酸钠、氨氮去除剂、工业级丙三醇、污水处理脱色剂
- 主营：储水桶、加药箱、泡菜桶、塑料桶、立式塑料水塔、平底塑料水箱、5吨塑料桶、8吨塑料桶、10吨塑料桶、15吨塑料桶、20吨塑料桶、30吨塑料桶、40吨塑料桶、50吨塑料桶、塑料储罐、塑料水塔、1000L塑料桶、立式塑料桶、卧式塑料桶、塑料水箱、外加剂塑料搅拌水箱、腌制桶、减水剂复配设备、外加剂复配设备、10立方水箱
- 主营：化工专用集装袋
- 主营：放大器、传感器、热电偶、起重机、热金属、感应器、防撞仪、防碰撞、obm-d04nk、e3jk-lk5m、光电开关、速度开关、拉绳、激光测距仪、无线传输、地址码、输送带保护装置、安全警示仪、热金属检测器、耐高温接近开关、耐低温接近开关、接近开关、行程开关、防爆接近开关、防爆行程开关
- 主营：螺旋输送机、搅拌站、配料机、水泥罐、水泥仓储罐、砂浆罐、移动搅拌站
- 主营：养殖桶、卧式储罐、石英石酸洗罐、塑料储罐、pe塑料水箱、塑料水塔、塑料储水罐、塑料水箱、塑料搅拌桶、塑料搅拌罐、加药箱、pe水箱、pph储罐
- 主营：高岭土、滑石粉、纳米仿瓷砂颗粒、重晶石、重钙、膨润土、硅藻土、麦饭石、绿沸石、海泡石、氧化铁、玻璃珠、玻璃粉、白炭黑、有机覆盖物、松树皮、玻璃砂、金刚砂、蛭石、火山石
- 主营：白色吨包袋、灰色编织袋、方形集装袋、塑料编织袋、纸塑复合袋、蛇皮袋、大米袋
- 主营：涂料桶、加厚ibc吨桶、多功能吨桶、塑料桶、塑料方桶、25升塑料桶、化工塑料桶、塑料角口桶、助剂塑料桶、角口塑料桶、方桶塑料桶、密封塑料桶、化工涂料桶、洗衣粉塑料桶、液体加厚塑料桶、带盖小口桶、加厚山字桶、山字桶、山字底包装桶、加厚角口桶、工业方桶、酒装米山字桶、包装油桶、方形闭口桶
- 主营：塑料桶、塑料粉碎、粉碎机