Products : Aqua Mix® : Stone Restoration : Aqua Mix® KnockDown®

Aqua Mix® KnockDown®

A non-acidic honing powder that removes light surface scratches, moderate acid etching and wear patterns to produce a flat, even and honed finish. It is excellent for safely honing polished marble, limestone or travertine to a smooth honed surface when a honed, unpolished finish is desired.

  WHERE TO BUY Not all products are sold at all stores. Please call the distributor to ensure product availability.
Have a question?


Key Features

  • Removes scratches, acid etching and traffic wear patterns
  • Produces an even, flat, honed finish
  • Safe, acid-free formula


Environmental Consideration

Complies with all Federal EPA and SCAQMD standards for VOC.

Suitable Tile Types

Limestone, marble and travertine.

General Surface Prep

Test a small area according to application instructions to determine desired results.

Health Precautions

MAY BE HARMFUL IF SWALLOWED. MAY IRRITATE EYES AND SKIN. Wear skin and eye protection. Contains nonreactive mineral powders. If in eyes, flush with water for at least 15 minutes. If on skin, wash with soap and water. If irritation persists, seek medical attention. If swallowed, DO NOT induce vomiting, seek medical attention. KEEP OUT OF REACH OF CHILDREN.

Limitations to the Product

  • Do not allow product to come in contact with any non-recommended surface.
  • Not intended for use as a pre-polish powder

Application of Product

USE CHEMICAL-RESISTANT GLOVES, such as nitrile, when handling product.

Read entire label before using. Test in a small inconspicuous area to determine desired results. Sweep or vacuum surface. Protect baseboards, carpet, etc. with protective plastic and/or blue painters tape. Surface must be free of existing sealers or coatings. Liberally apply KnockDown® to the stone surface. Add water to form a slurry. Refinish using a weighted floor machine fitted with a natural hair or synthetic fiber tan floor pad or use a hand polishing machine. If lippage is present, use two pads, double stacked. Keep slurry wet while buffing. Add KnockDown® as needed. Harder stones will require a thicker slurry. Buff area until the desired level of hone has been achieved squeegee slurry from a small area to check for desired results prior to removing slurry. Rinse well and use a wet vacuum to remove all excess compound.

Cleaning of equipment

Clean tools with water before material dries.

Handling & Storage

  • Close container tightly after each use
  • Store in original container only
  • Store in and use in temperatures between 45° F to 85° F (7° C to 29° C)
  • Store in areas inaccessible to small children
  • Do not reuse empty container, wrap and discard in trash or recycle

Product Maintenance

Properly applied product requires no special maintenance.

Warranty Information

Product Warranty

Obtain the applicable LIMITED PRODUCT WARRANTY at or send a written request to Custom Building Products, Inc., Five Concourse Parkway, Atlanta, GA 30328, USA. Manufactured under the authority of Custom Building Products, Inc. © 2017 Quikrete International, Inc.

Coverage Chart

Coverage depends on the hardness of the stone and method of application.

SIZE Min Coverage Max Coverage
1 lb (.45 kg) 100 ft² (10 M²) 200 ft² (19 M²)

© 2021 Custom Building Products. All Rights Reserved. Privacy