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Non-Professional Services Agreement between July 6, 2021 <br />City of San Leandro and Redwood Painting Company, Inc. Exhibit A Page 21 of 24 <br />a.Any damaged areas, faulty areas, or discontinuities (pinholes) found <br />during holiday detection within a 24-hour (within recoat window) period of <br />application shall be corrected as follows: <br />1)Damaged or Faulty Areas (i.e., impact damage, off-ratio application): <br />Clean area thoroughly, extending at least 6 inches beyond damaged <br />area with MEK dampened cloth. Do not apply excessive MEK to repair <br />area, the intent is to clean only. Allow MEK to thoroughly dry. When <br />thoroughly dry to touch, spray area with coating to the specified <br />thickness, feathering material into existing coating. In the event that the <br />damaged area exhibits a discolored substrate substandard to the <br />specified requirements, these areas shall receive the same degree of <br />surface preparation required by the original project specifications prior <br />to application of the coating material. <br />2)Discontinuity (Pinhole) Repair: Clean the immediate area around the <br />detected discontinuity with MEK dampened cloth (do not apply <br />excessive MEK to pinhole area, the intent is to clean only), allow MEK <br />to thoroughly dry. Hand apply (putty Knife, etc.) a small amount of <br />mixed material directly to the pinhole. For pinhole repairs, hand mix <br />and thoroughly blend a small amount (normally 2 or 3 ounces at a <br />time, for each applicator) of Part A and Part B in correct ratios. <br />b.Any damaged areas, faulty areas, or discontinuities (pinholes) found <br />during holiday detection inspection after 24 hours of coating installation <br />(exceeding recoat window) shall be corrected as follows: <br />1)Damaged or Faulty Areas (i.e., impact damage, off-ratio application, <br />etc.): Abrade the surface using a power grinder and/or power steel <br />grinding brush down to and including exposed bare concrete to <br />roughen the surface and to prepare the substrate to the original <br />standard. Abraded areas shall extend at least 6 inches (15 centimeter.) <br />beyond damaged or faulty area. After abrading the surface, vacuum or <br />blow down with clean, dry compressed air thoroughly to remove all <br />loose particles. Clean the area thoroughly, extending at least 6 inches <br />(15 centimeter) beyond the damaged area with MEK dampened cloth <br />(do not apply excessive MEK to pinhole area, the intent is to clean <br />only), allow MEK to thoroughly dry. When thoroughly dry to touch, <br />spray area with coating to the specified thickness, feathering the <br />material into the existing prepared coating. <br />2)Discontinuity (Pinhole) Repair: Abrade (hand sand or power tool clean) <br />the immediate areas around the detected pinhole (1/2 inch radius from <br />edge of discontinuity) to establish a roughed surface, and to prepare <br />the substrate to the original standard, followed with vacuuming or blow <br />down with clean, dry compressed air to remove loose particles. After <br />dust removal, wipe abraded area with MEK dampened cloth. Do not <br />apply excessive MEK to pinhole area. The intent is to clean only. Allow <br />MEK to thoroughly dry. Hand apply (putty Knife, etc.) a small amount <br />of mixed material directly to the pinhole. For pinhole repairs, hand mix <br />645