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Ardex TWP Wall Patch for Vertical Concrete

ARD 12508 Ardex TWP Wall Patch for Vertical Concrete from Carter-Waters
SKU: 106886600

ARDEX TWP Tilt Wall Patch and Finishing Compound for Vertical Concrete Walls


ARDEX TWP is a trowelable Portland cement-based finishing compound used to fill and smooth interior and exterior vertical concrete surfaces such as tilt-up walls, pre-cast or poured in place concrete panels, and other concrete or masonry surfaces prior to sealing or painting. When mixed with water, it renders a creamy, smooth consistency ideal for filling in surface defects such as spalls, gouges, cracks, dents, chips, bug holes or honeycombs – any type, size or shape of surface defect that needs to be filled and smoothed before coating. ARDEX TWP hardens quickly and dries fast without shrinking, cracking or spalling. It is tougher and more durable than traditional gypsum and latex patches, and because it dries internally, it can be sealed or painted as soon as the surface is hard.

  • Use for filling and smoothing interior and exterior vertical concrete or masonry surfaces
  • Portland cement-based
  • Easy to mix and apply
  • Hardens quickly without shrinking

Substrate Preparation:

  • All concrete surfaces must be structurally sound, solid and free of any contaminant that might act as a bond breaker, including the removal of form release, existing sealers or paints, patching compounds, weak or loose areas, dust, dirt or oils. If necessary, mechanically clean the surface down to sound, solid concrete by sandblasting or grinding. Overwatered, frozen or otherwise weak concrete surfaces must also be cleaned down to sound, solid concrete by mechanical methods. Acid etching, adhesive removers, solvents and sweeping compounds are not acceptable means of cleaning the substrate. Sanding equipment is not an effective method for removing curing and sealing compounds. Surfaces must be dry for a successful installation. Surface and air temperatures must be a minimum of 50°F (10°C) for the installation of ARDEX products.

Mixing And Application:

  • Mix each 10 lb bag of ARDEX TWP with 2 1/2 quarts (2.4 l) of clean water. Do not overwater. The use of additional water will weaken ARDEX TWP and lower its durability. Pour the water in the mixing container first, and then add the ARDEX TWP. For best results, mix with an ARDEX T-2 mixing paddle and 1/2” heavy-duty drill. Using mechanical mixing will produce a creamier, smoother consistency without the need for additional water. For smaller quantities, use 2 parts of powder to 1 part water by volume. Use a margin trowel and mix vigorously for 2 to 3 minutes. Mix thoroughly to obtain a lump-free consistency. The pot life of ARDEX TWP is approximately 15 to 20 minutes at 70°F (21°C). If the product begins to set in the bucket, remix before using. Do not add more water. After mixing, apply the compound to the prepared surface with a steel trowel. Apply sufficient pressure to fill in all surface defects. Where necessary, minor touch-up work can be accomplished using a rubber float or slightly dampened sponge once the surface has started to harden. If the material has already fully set, the surface can be smoothed with fine sandpaper or re-skimmed


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