{"product_id":"西卡-彈性防水英泥-sikatop-300-seal","title":"Sika SikaTop-300 Seal","description":"\u003cdiv class=\"tldr-box\" style=\"background: #f0f4f8; border-left: 4px solid #2c5282; padding: 16px; margin-bottom: 24px;\"\u003e\n\u003cstrong\u003eSummary:\u003c\/strong\u003e\u003cp\u003eSikaTop®-300 Seal is a 2-component, polymer-modified, highly elastic cementitious waterproofing slurry with excellent crack-bridging capability (~250% elongation at break). Suitable for terraces, balconies, wet areas and window frame surroundings. Features frost\/salt resistance to -10°C, anti-carbonation protection, low VOC and non-toxic formulation.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eSikaTop-300 Seal — Highly Elastic Cementitious Waterproofing Slurry\u003c\/h2\u003e\n\u003cp\u003eSikaTop®-300 Seal is a 2-component, polymer-modified, highly elastic cementitious waterproofing coating. Component A is a liquid polymer with additives and Component B is Portland Cement with selected aggregates. It is applied to concrete and mortar substrates as an elastic waterproofing coating to prevent water infiltration, with excellent crack-bridging capability for areas subject to movement.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHighly elastic with good crack-bridging capability (~250% elongation at break)\u003c\/li\u003e\n\u003cli\u003ePre-batched components with consistent quality\u003c\/li\u003e\n\u003cli\u003eEasily applied by roller or brush\u003c\/li\u003e\n\u003cli\u003eGood adhesion to sound substrates\u003c\/li\u003e\n\u003cli\u003eCementitious with low VOC — non-regulated under Hong Kong Air Pollution Control regulations\u003c\/li\u003e\n\u003cli\u003eImpermeable — 0 mm water penetration at 50 m head of water\u003c\/li\u003e\n\u003cli\u003eIncreased frost and salt resistance — resistant to freezing and thawing to -10°C\u003c\/li\u003e\n\u003cli\u003eDecreases carbon dioxide penetration (anti-carbonation)\u003c\/li\u003e\n\u003cli\u003eNon-toxic, same as cement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eWaterproofing\u003c\/strong\u003e — elastic waterproofing coating for concrete and mortar surfaces\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCrack sealing\u003c\/strong\u003e — sealing of hairline cracks and protective coating against aggressive elements\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAnti-carbonation\u003c\/strong\u003e — protective coating in concrete repair work against carbon dioxide penetration\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTerraces and balconies\u003c\/strong\u003e — exposed terrace and balcony waterproofing\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWet areas\u003c\/strong\u003e — kitchens, bathrooms, showers and laundries\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWindow frame surroundings\u003c\/strong\u003e — waterproof sealing around window frames\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose SikaTop-300 Seal?\u003c\/h2\u003e\n\u003cp\u003eSikaTop-300 Seal is a high-elongation product in the Sika cementitious waterproofing range, ideal for applications requiring superior crack-bridging:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eHigh elasticity:\u003c\/strong\u003e ~250% elongation at break — effectively bridges cracks from thermal movement and structural settlement\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFrost and salt resistance:\u003c\/strong\u003e Resistant to freeze-thaw cycles down to -10°C, suitable for exposed applications\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMulti-function protection:\u003c\/strong\u003e Combines waterproofing, anti-carbonation and crack sealing in one product\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSika brand:\u003c\/strong\u003e Swiss Sika — over 100 years of proven quality and reliability\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSystem compatibility:\u003c\/strong\u003e Works with Sika® SealTape F for enhanced waterproofing at joints and corners in wet areas\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor other cementitious waterproofing options, browse our \u003ca href=\"\/en\/collections\/%E5%BD%88%E6%80%A7%E9%98%B2%E6%B0%B4%E8%8B%B1%E6%B3%A5\"\u003eflexible cementitious waterproofing range\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003ePackaging\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackaging\u003c\/td\u003e\n\u003ctd\u003e45 kg set (25 kg bag Part B + 20 kg pail Part A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShelf Life\u003c\/td\u003e\n\u003ctd\u003e9 months from date of production (store in undamaged, unopened original sealed packaging in cool, dry conditions away from direct sunlight and frost)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemical Base\u003c\/td\u003e\n\u003ctd\u003ePart A: liquid polymer and additives; Part B: Portland Cement, selected aggregates\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAppearance (Part A)\u003c\/td\u003e\n\u003ctd\u003eWhite liquid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAppearance (Part B)\u003c\/td\u003e\n\u003ctd\u003eGrey powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAppearance (mixed)\u003c\/td\u003e\n\u003ctd\u003eDark grey slurry\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDensity (wet mixed mortar)\u003c\/td\u003e\n\u003ctd\u003eApprox. 1.5 kg\/l\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength\u003c\/td\u003e\n\u003ctd\u003e~1.32 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElongation at Break\u003c\/td\u003e\n\u003ctd\u003e~250% (7 days cured)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Adhesion Strength\u003c\/td\u003e\n\u003ctd\u003e\u003e 1 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater Penetration Under Pressure\u003c\/td\u003e\n\u003ctd\u003e0 mm at 50 m head of water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater Absorption\u003c\/td\u003e\n\u003ctd\u003e\u003c 4.9 × 10⁻¹⁴ m\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConsumption\u003c\/td\u003e\n\u003ctd\u003eApprox. 1 kg\/m²\/coat (min. 2 coats; for critical areas, apply a third coat)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. per layer\u003c\/td\u003e\n\u003ctd\u003e2 kg\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePot Life\u003c\/td\u003e\n\u003ctd\u003e~80 minutes at +20°C (shortened at higher temperatures)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCuring Time\u003c\/td\u003e\n\u003ctd\u003eMinimum 3 days before water ponding test, then tiling or rendering\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInitial Set Time\u003c\/td\u003e\n\u003ctd\u003e0 ml\/m²\/sec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFreeze-Thaw Resistance\u003c\/td\u003e\n\u003ctd\u003eResistant to freezing and thawing at -10°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eImportant Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMinimum ambient and substrate temperature is 8°C for application\u003c\/li\u003e\n\u003cli\u003eNever apply more than 2 kg\/m² per single layer\u003c\/li\u003e\n\u003cli\u003eMinimum 2 coats required; for critical areas, apply a third coat\u003c\/li\u003e\n\u003cli\u003eSubstrate must be concrete or mortar — clean, sound, free from grease, oil and loosely adhering particles\u003c\/li\u003e\n\u003cli\u003eSteel and iron surfaces must be clean, free from scale, rust, grease and oil\u003c\/li\u003e\n\u003cli\u003eAbsorbent surfaces must be thoroughly saturated with water prior to application — no standing water\u003c\/li\u003e\n\u003cli\u003eA bond coat using a mixture of Sika Latex and cement is recommended for better keying\u003c\/li\u003e\n\u003cli\u003eMix using a slow speed mixer (~500 rpm) with uplifted notched disk paddle for approx. 3 minutes until lump-free\u003c\/li\u003e\n\u003cli\u003eAllow 2–4 hours at 25°C for the first coat to cure before applying following coats\u003c\/li\u003e\n\u003cli\u003eAdditional stripe coat recommended over cracks, wall\/floor intersections and locations subject to movement\u003c\/li\u003e\n\u003cli\u003eSika® SealTape F recommended at joints and corners in wet areas for advanced water tightness\u003c\/li\u003e\n\u003cli\u003eProtect freshly applied material from direct sunlight, wind, rain and frost during curing\u003c\/li\u003e\n\u003cli\u003eMinimum 3 days curing before water ponding test or subsequent finishes\u003c\/li\u003e\n\u003cli\u003eClean all tools with clean water immediately after use — hardened material can only be removed mechanically\u003c\/li\u003e\n\u003cli\u003eNon-regulated under Hong Kong Air Pollution Control (Volatile Organic Compounds) Regulation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\n\u003ch3\u003eWhat is the difference between SikaTop-300 Seal and SikaTop-107 Seal?\u003c\/h3\u003e\n\u003cp\u003eSikaTop-300 Seal is a highly elastic waterproofing slurry with ~250% elongation at break, offering far greater crack-bridging capability than SikaTop-107 Seal. SikaTop-300 Seal is better suited for exposed environments (terraces, balconies) and substrates with greater movement. For general interior bathroom waterproofing, SikaTop-107 Seal HK is sufficient.\u003c\/p\u003e\n\n\u003ch3\u003eCan SikaTop-300 Seal be used for basement waterproofing?\u003c\/h3\u003e\n\u003cp\u003eSikaTop-300 Seal is primarily designed for terraces, balconies, wet areas and window frame surroundings. For basement waterproofing requirements, please WhatsApp us for suitable waterproofing solutions.\u003c\/p\u003e\n\n\u003ch3\u003eHow is SikaTop-300 Seal applied?\u003c\/h3\u003e\n\u003cp\u003eShake Component A (liquid) before use, pour into a clean mixing container, then slowly add Component B (powder) while mixing at low speed (~500 rpm) for approximately 3 minutes until creamy and lump-free. Apply the first coat to the pre-wetted surface by brush, roller or squeegee. Allow 2–4 hours curing at 25°C, then apply the second coat. Refer to the Sika product data sheet for detailed instructions.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is the coverage of SikaTop-300 Seal?\u003c\/h3\u003e\n\u003cp\u003eApprox. 1 kg\/m² per coat, with a maximum of 2 kg\/m² per single layer and minimum 2 coats required. A 45 kg set covers approximately 22 m² (based on 2 coats). Actual coverage depends on substrate roughness and coating thickness.\u003c\/p\u003e\n\n\u003ch3\u003eHow much does SikaTop-300 Seal cost?\u003c\/h3\u003e\n\u003cp\u003ePlease WhatsApp us for the latest SikaTop-300 Seal pricing. We offer self-pickup from our Mong Kok store and Hong Kong delivery service.\u003c\/p\u003e","brand":"Sika 西卡","offers":[{"title":"Default Title","offer_id":46352840491158,"sku":null,"price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/sikatop-300-seal.jpg?v=1776710915","url":"https:\/\/wahhingwp.com\/en\/products\/%e8%a5%bf%e5%8d%a1-%e5%bd%88%e6%80%a7%e9%98%b2%e6%b0%b4%e8%8b%b1%e6%b3%a5-sikatop-300-seal","provider":"華興建築防水材料有限公司","version":"1.0","type":"link"}