Overview
Silane waterproof coating is a penetrating sealant that chemically reacts with mineral substrates to create a permanent hydrophobic barrier. Unlike surface coatings, it penetrates deep into concrete pores (typically 2-10mm) and forms a water-repellent layer while allowing vapor transmission. This technology was developed in the 1980s as an advancement over traditional waterproofing methods. The coating typically consists of alkylalkoxysilane compounds that undergo hydrolysis upon contact with substrate moisture. It's particularly valued in the construction industry for its ability to protect structures without altering their appearance or requiring surface film formation.
Physical and Chemical Properties
Silane-based coatings exhibit low viscosity (20-50 cP) for deep penetration and typically have a volatile organic content (VOC) of 300-700 g/L. They react with hydroxyl groups present in concrete or masonry to form stable siloxane bonds. The reaction produces alcohol as a byproduct, which evaporates during curing. Key performance characteristics include water absorption reduction (typically >90%), chloride ion penetration resistance (80-95% reduction), and carbonation resistance. The coatings maintain substrate breathability with vapor transmission rates exceeding 90% of untreated surfaces. Performance is generally stable between -40°C to 80°C.
Main Applications
Primary applications include concrete bridge decks (extending service life by 15+ years), parking structures (protecting against de-icing salts), and historical building preservation (invisible protection for facades). The marine construction sector uses it for piers and seawalls to combat chloride-induced corrosion. In industrial settings, it protects chemical storage floors and wastewater treatment plants. Recent applications include pre-cast concrete elements and tunnel linings. Unlike membrane systems, it doesn't require protection during backfilling or suffer from punctures, making it ideal for buried structures.
Safety and Storage
As a solvent-based product, silane coatings require proper ventilation during application and storage. Flash points typically range from 40-60°C, necessitating storage away from ignition sources. Unopened containers have a shelf life of 6-12 months when stored at 5-30°C. Personnel should wear chemical-resistant gloves (nitrile or neoprene), goggles, and organic vapor respirators when handling. Spills should be contained with absorbent materials and disposed as hazardous waste. Cured coatings pose minimal health risks, but uncured material requires proper handling per GHS Category 2 or 3 flammability classifications.
B2B Procurement Guide
When procuring silane coatings, verify penetration depth test reports (ASTM C642 or similar). For critical infrastructure projects, request independent test data showing chloride ion penetration resistance (ASTM C1202) and freeze-thaw durability (ASTM C666). Consider application requirements: low-VOC formulations for indoor use, high-solids versions for vertical surfaces. Bulk purchases (200+ kg drums) typically offer 15-30% cost savings. Reliable suppliers provide technical support including surface preparation guidelines and application rate calculators. For international projects, confirm compliance with regional standards like EN 1504-2 in Europe.
Related Manufacturers
- 主营：反应粘防水卷材、高分子防水卷材、tpo防水卷材、pvc防水卷材、防水涂料、高分子湿铺防水卷材、耐根穿刺型防水卷材、热塑性聚烯烃防水卷材、反应粘强力交叉膜防水、聚氨酯防水涂料、反应粘高分子湿铺卷材
- 主营：抑尘剂、密封固化剂、混凝土养护剂、防腐涂料、硅烷浸渍剂、线圈绝缘胶泥、水泥基面增强剂、阻燃玻璃纤维布、玻璃纤维玻纤布
- 主营：防水卷材、防水涂料、透明防水胶涂料、SBS自粘防水卷材、改性沥青卷材
- 主营：道康宁、硅橡胶、偶联剂、乙烯基硅烷、高透明硅烷、三乙氧基硅烷、三乙基氧硅烷、lfgb硅胶、2003硅胶、陶熙硅胶、康宁硅胶、三甲氧基、医用硅胶、瓦克硅胶、透明硅胶、厨房用品、高回弹硅胶、耐高温硅胶、未催化有机、食品级硅胶、甲基三甲氧、通用型硅胶、办公设备胶辊
- 主营：防水防腐涂料、保温隔热涂料、隔音涂料、屋面防水涂料、室内防水涂料、陶瓷微珠保温隔热涂料、气凝胶绝热保温涂料、反辐射隔热防水涂料、污水池防腐涂料
- 主营：乙烯基树脂、聚氯乙烯含氟萤丹漆、氟碳漆、8710饮用水涂料、环氧树脂涂料、玻璃钢防腐涂料、OM-5烟囱防腐涂料、玻璃鳞片涂料、耐高温涂料、氰凝防水防腐涂料、环氧陶瓷涂料、环氧富锌底漆、环氧煤沥青漆、玻璃鳞片胶泥、丙烯酸聚氨酯面漆
- 主营：录音棚、保护剂、胶沥青、防水剂、防水胶、防水材料、固砂剂、玻璃砖、翻新漆、抗渗剂、隔热漆、界面剂、永凝液、固沙宝、彩钢瓦、瓷砖胶、灰橡胶、防锈漆、水性漆、修复剂、隔热保温、隔音吸音、隔音喷涂、阻燃喷涂、防火喷涂
- 主营：土壤固化剂、防静电砂浆、混凝土抗渗剂、箱梁硅烷浸渍、氯丁胶乳砂浆、自密实混凝土、不发火砂浆、混凝土养护剂、不发火细石混凝土、金属骨料防静电砂浆
- 主营：建筑防水材料
- 主营：玻纤瓦、材料sbs、乙烯pvc、951防水、防水ppc、eva防水、sbs防水、k11防水、pvc防水、hdpe防水、防水涂料、沥青胶、油毡瓦、池石上、沥青瓦、卷材sbs、卷材1卷、rg聚合物、聚氯乙烯、平板透明、水卷卷材、卷材企标、包工包料、木屋瓦片、塑料薄膜
- 主营：保护层、玻纤瓦、沙皮瓦、ppc防水、防水板、水泥浆、保护膜、网带pet、隔离层、外墙砖、聚合物、封檐板、乙烯pvc、乳胶漆、隔热漆、雨水管、雨水槽、地坪漆、落水管、沥青sbs、排水管、贺德克、落水槽、油毡瓦、钢结构
- 主营：氰凝涂料、聚脲防滑涂料、水泥砂浆防水剂、氯丁胶乳水泥
- 主营：金属屋面翻新防锈漆、管道设备保温气凝胶、环氧防腐漆、桥面防水粘结剂、建筑保温隔热涂料、隔音吸音涂料、污水池防腐涂料、钢结构防腐体系涂料、外墙丙烯酸防水涂料、反射隔热降温涂料、硅橡胶装饰一体防水、改性环氧树脂防腐
- 主营：防水隔热涂料、隔音吸音涂料、防腐涂料、保温材料、防锈漆翻新漆
- 主营：无机硅声能凝胶、特种防锈漆、钢化漆、保温涂料、隔热涂料、防腐涂料、隔音涂料、防水涂料、桥面防水、瓷砖空鼓修补胶
- 主营：混凝土色差修复剂、清水混凝土保护剂、有机硅憎水剂、混凝土防碳化涂料、硅烷浸渍剂、混凝土防腐涂料、沥青路面强化保护剂、钢筋阻锈剂、高光乳液
- 主营：PB-II型聚合物改性沥青防水涂料、PB-1型道桥聚合物改性沥青防水涂料、反射隔热防水涂料、高聚物改性沥青防水涂料、水性沥青基防水涂料、防水涂料、路桥防水、JS防水
- 主营：防水涂料、隔热保温涂料、防腐防水涂料、防水卷材、路桥防水、吸音隔音涂料、家装补漏、翻新隔热、保温凝胶