Tech Bulletin - Recoating & Repairs with 1K & 2KM_111325.pdf
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<h1>Tech Bulletin - Recoating & Repairs with 1K & 2KM_111325.pdf</h1> <p>AQUAFIN Inc. <br />505 Blue Ball Rd. #160 <br />Elkton, MD 21921 <br />p: 410-392-2300 <br />e: info@aquafin.net <br />e: technical@aquafin.net <br />w: www.aquafin.net</p> <p>Technical Bulletin</p> <p>Recoating & Repairs with 1K & 2K/M <br />Recommended Procedures for Recoating and Repair Applications of AQUAFIN®-1K and <br />AQUAFIN®-2K/M <br />Recoating or repair of AQUAFIN-1K and/or AQUAFIN-2K/M applications may be required under certain conditions, including: <br />•C <br /> ompleting a multi-layer application when the recoat window between coats has been exceeded (missed) <br />• P erforming localized repairs due to punctures or similar types of damage (e.g. in zoo ponds or aquariums) <br />•M <br /> aintaining continued waterproofing performance when signs of surface wear are evident <br />Repairing and Recoating Existing AQUAFIN-1K Applications with AQUAFIN-1K: <br />1. Remove all loose, unbonded, or damaged areas of AQUAFIN-1K by mechanical means. <br />2. Mechanically abrade the surface of existing AQUAFIN-1K using a wire wheel attached to an angle grinder. <br />3. Thoroughly clean the existing surface and completely remove all residue by pressure washing, hydro blasting, or wiping with water and a wet sponge. <br />4. Immediately prior to reapplication, pre-dampen the existing AQUAFIN-1K surface, ensuring no standing water remains. <br />5. Apply the first fresh coat of AQUAFIN-1K by brush, working it thoroughly into the existing substrate. Follow all written instructions on the current <br />AQUAFIN-1K Technical Data Sheet. <br />6. (Optional 2nd Coat) Apply a second fresh coat of AQUAFIN-1K as soon as the first coat has set, but remains ”green“ [typically 4 to 6 hours at 68°F <br />(20°C), 60% RH]. The second coat must be applied within 24 hours. <br />Recoating Existing AQUAFIN-1K Applications with AQUAFIN-2K/M: <br />1. Mechanically abrade the surface of existing AQUAFIN-1K using a wire wheel attached to an angle grinder. <br />2. Thoroughly clean the existing surface and completely remove all residue by pressure washing, hydro blasting, or wiping with water and a wet sponge. <br />3. Allow the surface of AQUAFIN-1K to dry completely. Do not pre-dampen the AQUAFIN-1K surface prior to applying AQUAFIN-2K/M. <br />4. Apply the first fresh coat of AQUAFIN-2K/M by brush, working it thoroughly into the existing surface of AQUAFIN-1K. Follow all written instructions on <br />the current AQUAFIN-2K/M Technical Data Sheet. <br />5. (Optional 2nd Coat) Apply a second fresh coat of AQUAFIN-2K/M, as soon as the first coat has sufficiently hardened [typically 4 to 6 hours at 68°F <br />(20°C), 60% RH]. The second coat must be applied within 24 hours. <br />Notes: Inspect the surface of existing AQUAFIN-1K for any damage prior to applying AQUAFIN-2K/M. Repair all damaged areas following instructions <br />for “Repairing and Recoating Existing AQUAFIN-1K Applications with AQUAFIN-1K” in this Technical Bulletin before proceeding. Allow freshly applied <br />AQUAFIN-1K to dry for at least 24 hours, then apply AQUAFIN-2K/M within 72 hours. <br />Repairing and Recoating Existing AQUAFIN-2K/M Applications with AQUAFIN-2K/M: <br />1. Remove all loose, unbonded, and/or damaged areas of AQUAFIN-2K/M by mechanical means. <br />2. Clean the surface of existing AQUAFIN-2K/M and completely remove all residue by pressure washing or hydro blasting. <br />3. Allow the surface of AQUAFIN-2K/M to dry completely. Do not pre-dampen the existing AQUAFIN-2K/M surface prior to reapplication. <br />4. Apply the first fresh coat of AQUAFIN-2K/M by brush, working it thoroughly into the existing surface of AQUAFIN-2K/M. Follow all written <br />instructions on the current AQUAFIN-2K/M Technical Data Sheet. <br />5. (Optional 2nd Coat) Apply a second fresh coat of AQUAFIN-2K/M, as soon as the first coat has sufficiently hardened [typically 4 to 6 hours at 68°F <br />(20°C), 60% RH]. The second coat must be applied within 24 hours. <br />Additional General Notes: <br />• P lease defer to EOR (Engineer of Record) or design professional for the project and follow Aquafin Technical Data Sheets, ACI and ICRI guidelines, <br />and common concrete practices. <br />• Every construction project is unique; no two are exactly the same. Likewise, concrete slab and masonry wall characteristics will vary between projects. <br />Site-specific conditions may require specialized surface preparation procedures or the use of particular application techniques. In the event of atypical <br />conditions or project constraints, please contact Aquafin Technical Department for guidance. <br />•A <br /> ll concrete and masonry substrates must be strong, solid, stable, and of load bearing capacity. <br />•A <br /> reas designated to receive repairs must remain structurally sound and stable during demolition and surface preparation work, and these conditions <br />must continue throughout the course of the repair work. Any areas of concern or uncertainty should be discussed immediately with the site <br />Superintendent and brought to the attention of the EOR. <br />Check our website for the latest version of this technical document. Only the current version is legally binding - and only for the intended market. In cases of uncertainty <br />contact our technical department for further information before starting any applications. <br />www.aquafin.net <br />Page 1 of 2 <br />(11/13/25-EK,SB,AC)</p> <p>Recoating & Repairs with 1K & 2K/M <br />•A <br /> ll active leaks must be plugged/stopped prior to the application of AQUAFIN-1K and/or AQUAFIN-2K/M. Contact Aquafin Technical Department or <br />your local Aquafin Representative for product recommendations, which may include the use of MORTAR-LN for crack and joint treatment and/or Aquafin <br />Injection Grouts for active leaks causing water accumulation. <br />• For AQUAFIN-1K, AQUAFIN-2K/M, or any liquid-applied waterproofing system to perform effectively, the membrane must remain continuous. Spot <br />repairs, as outlined in this Technical Bulletin, are acceptable. However, for these repairs to be effective, the existing AQUAFIN-1K or AQUAFIN-2K/M <br />application should extend over the entire wall and/or floor surface(s). <br />• Like all cementitious waterproofing products, variations in temperature, humidity, substrate moisture, air movement, application methods, and finishing <br />techniques, will contribute to the end look of the finished product. Consistency in areas mentioned above typically yield a relatively uniform result. <br />However, color uniformity of AQUAFIN-1K and/or AQUAFIN-2K/M is not guaranteed. <br />•A <br /> lways refer to the most current published Technical Data Sheets available online for up-to-date information. <br />• Please contact Aquafin Technical Department for any questions about recoating and/or repair procedures with AQUAFIN-1K, AQUAFIN-2K/M or any <br />other Aquafin products.</p> <p>Check our website for the latest version of this technical document. <br />www.aquafin.net <br />Page 2 of 2 <br />(11/13/25-EK,SB,AC)</p>
