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Pricelist: General Price List (USD) Pricelist
MB Stone Care MB-14 Refine Honing Powder

MB Stone Care MB-14 Refine Honing Powder for Marble & Calcite Stone

MB-14 Refine is a professional honing powder for natural stone restoration on marble, travertine, limestone and other calcite-based stone. Used wet at low speed, it flattens and refines the surface to a matte finish and eliminates mild grinding swirls, preparing the stone for polishing. Six grits from 80 through 800 let you step through a full honing sequence, and each grit is stocked in 1 lb, 2 lb, 8 lb and 25 lb sizes. It is rated 1 of 5 on the manufacturer difficulty scale but is sold for professional use only.

Features

  • Honing powder for marble, travertine, limestone and other calcite-based stone
  • Six grits available: 80, 150, 250, 400, 600 and 800, so a full honing progression runs on one product line
  • Produces a flat matte finish; the exact sheen shifts slightly with the grit chosen
  • Eliminates mild grinding swirls and prepares the surface for a subsequent polishing step
  • Used wet at low speed - countertops at no more than 900 RPM (600 RPM preferred), floors at no more than 175 RPM
  • Dosage is economical: 1/2 teaspoon covers 2-3 sq ft of countertop, 2 oz covers 10-12 sq ft of floor
  • Packed by weight, not volume, in 1 lb, 2 lb, 8 lb and 25 lb sizes per grit
  • Rated 1 of 5 on the manufacturer difficulty scale, the easiest tier in the MB Stone Care powder range
Part NoGritSize
MB-14-80-1801 lb
MB-14-80-2802 lb
MB-14-80-8808 lb
MB-14-80-258025 lb
MB-14-150-11501 lb
MB-14-150-21502 lb
MB-14-150-81508 lb
MB-14-150-2515025 lb
MB-14-250-12501 lb
MB-14-250-22502 lb
MB-14-250-82508 lb
MB-14-250-2525025 lb
MB-14-400-14001 lb
MB-14-400-24002 lb
MB-14-400-84008 lb
MB-14-400-2540025 lb
MB-14-600-16001 lb
MB-14-600-26002 lb
MB-14-600-86008 lb
MB-14-600-2560025 lb
MB-14-800-18001 lb
MB-14-800-28002 lb
MB-14-800-88008 lb
MB-14-800-2580025 lb
  1. Clean the surface to be honed of all debris, sand and dirt.
  2. Strip any topical coating or crystallizer from the surface. Honing powder must reach bare stone.
  3. Mask and protect any adjacent surface that splatter could damage.
  4. Countertops: work 2-3 sq ft at a time using about 1/2 teaspoon of powder, laid down in a circular pattern smaller than the pad, then add enough water to make a heavy cream-like paste.
  5. Fit a hog's hair pad to a right-angle grinder or polisher, place it on the product, and keep the speed at no more than 900 RPM - 600 RPM works best - under as much pressure as the machine will take before it stalls.
  6. Floors: work 10-12 sq ft at a time with 2 oz of powder, using a floor machine weighing 130-160 lb and turning no faster than 175 RPM, releasing enough water from the tank to form a heavy cream-like paste.
  7. Follow a consistent, pre-determined working pattern, the same way you would with diamond pads, so the finish comes out even.
  8. Keep the slurry wet by adding water as needed, and add more MB-14 as needed. Never run this powder dry.
  9. Keep working the slurry until the desired finish is reached.
  10. Rinse well, then squeegee the water off a countertop or pick it up from a floor with a wet/dry vacuum.
PropertyDetail
BrandMB Stone Care
Product NameMB-14 Refine Honing Powder
Product TypeWet honing powder for natural stone
Technical Rating1 of 5 (1 easy, 5 difficult)
Best Used OnHoned marble, travertine, limestone and other calcite-based stones
Application MethodWet at low speed
Resulting FinishMatte, varying slightly with the grit selected
Grits80, 150, 250, 400, 600, 800
Countertop Dosage1/2 teaspoon per 2-3 sq ft
Floor Dosage2 oz per 10-12 sq ft
Countertop Machine Speed900 RPM maximum, 600 RPM preferred
Floor Machine130-160 lb, 175 RPM maximum
Available Sizes1 lb, 2 lb, 8 lb, 25 lb per grit
Packed ByWeight, not volume
DeveloperMB Stone Professional®
What does honing powder actually do?

It creates a flat, even finish and eliminates mild grinding swirls, preparing the stone for a later polishing step. The surface must already be properly prepared before honing powder is applied.

Do I need a machine to use MB-14?

Yes. Honing has to be done with a suitable polishing machine to get a uniform finish - a rotary polisher for countertops or a floor machine for floors.

Can I use it dry?

No. Honing powder must never be run dry. It is always applied wet so the surface is not damaged.

Will it leave a glossy or matte surface?

Matte. The exact level shifts slightly depending on which of the six grits you use. A glossy result requires a separate polishing product.

Can MB-14 remove medium scratch patterns?

No. This honing powder does not remove scratch patterns, and it is not designed to address severe chemical etching or deep scratches.

How much powder should I buy?

The manufacturer guideline is roughly 1 lb per 50-75 sq ft. Each grit is stocked in 1 lb, 2 lb, 8 lb and 25 lb sizes.

Which grit should I start with?

Grits run 80, 150, 250, 400, 600 and 800. Coarser grits cut faster on a rougher surface; finer grits refine toward the final matte finish. Work through the sequence rather than jumping grits.

Does the surface need stripping first?

Yes. Any topical coating or crystallizer must be removed, and all debris, sand and dirt cleaned off, before the stone is in a ready-to-hone state.

⚠ WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov. Always wear appropriate PPE.