Limestone Patching Mortar Kit
Limestone Patching Mortar KitShipping & returns
- Ships from Olathe, Kansas by UPS, usually within 1–2 business days.
- Rates are quoted live at checkout for your ZIP code.
- Items with a pallet option ship free on the pallet size. For large orders of other items, contact us.
- We deliver to UPS addresses in the continental US.
- Returns or a damaged order? See our Return & Refund Policy.
Part of The Pro Mason System. Clean, repair, protect: see how it works · project guides · FAQ
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Not sure which to pick?
Tell us about your project and the year your home was built, and we'll suggest a good place to start. Ask us here.
Pick the Limestone Kit to repair chipped, worn or missing limestone, with both lime mortars and buff-toned pigments in one box.
| Product | Best for |
|---|---|
| Repair Grout | Hairline cracks, voids and injection in walls |
| Low Build | Shallow wall repairs to 1/4 in. and fine finish detail |
| High Build | Deep wall and overhead repairs, 1/4 to 3 in. per lift |
| Brick Kit | High Build + Low Build, red-toned, for brick walls |
| Limestone Kit (this one) | High Build + Low Build, buff-toned, for limestone walls and trim |
Repairing brick? Use the Brick Kit. Stone steps or other high-wear areas? Use Fast-Repair; pure lime patches are generally too soft there.
- Both lime repair mortars in one kit - High Build for depth, Low Build for the finish.
- Pigments for limestone - Light Buff, Dark Buff and Charcoal packs included.
- Water only - plus pigment; no Portland cement.
- Long working time - carve and sand for more than a week after placing.
How the job goes
- 1. Prepare. Remove loose material and dampen the masonry.
- 2. Build. Mix High Build with water and pigment and build up the missing material.
- 3. Finish. Finish the surface with Low Build, then carve, sand and protect while it cures.
What's in the kit
- 1 gallon High Build, Natural White
- 1 quart Low Build, Natural White
- 1 Light Buff pigment pack with each container
- 1 Dark Buff and 1 Charcoal pigment pack
Safety: lime is caustic. Wear gloves and eye protection.
More about the Limestone Patching Mortar Kit
Limestone sills, lintels, walls and carved trim wear and chip over time. This kit gives you the two lime mortars a limestone repair needs, plus pigments in the buff range, so you can rebuild and finish in one go.
The gallon of High Build is a fine-fiber, lightweight lime mortar that holds on vertical and overhead surfaces and builds up to 3 inches per lift; it can be carved and stamped. The quart of Low Build gives a smooth, creamy finish, from hairline cracks to featheredge, in lifts up to 1/4 inch. We recommend working when it's above 40°F, and protecting fresh work from freezing while it cures.
Both are lime mortars without Portland cement, softer than cement or epoxy repair mortars and breathable alongside the stone. They can be carved and sanded for more than a week after placement, so you can match tooling marks and edges. Mix small test batches with the Light Buff, Dark Buff and Charcoal packs until the color sits right.
These pure lime mortars typically shouldn't be used on steps or flatwork, because they are generally too soft for those areas; use Fast-Repair for stone steps and other high-wear masonry, and High Strength Concrete Patch for concrete flatwork. For brick, the Brick Kit has the same two mortars with red-toned pigments.
Let customers speak for us
Came out beautiful and better than I had hoped
Shipped quickly. Arrived quickly. It mixed easily and adhered to my spalling bricks. So far so good.
The perfect mortar for 126 year old bricks (granite boulder and brick foundation built in 1900). Very happy with the mortar and clear instructions. Thank you ProMason!
Worked perfectly. Stain changed color of existing brick to the tone I was expecting giving it new life and blends with other new finishes.
I haven't had a chance to mix and use the mortar yet. However, the customer service is great. They immediately sent a replacement package of colorant since the original had leaked.
Our project turned out wonderful! What an amazing difference. It completely changed the look of the house!!
Easier to apply than I anticipated.
My first time staining brick and I was nervous on how it might turn out because I was going from dark brown tone bricks to gray tone (before and after photo submitted)Blended my own color combo and It looks amazing.
The stain covers well and a quart did a good amount of surface area. The perfect shade was achieved by mixing 2 colors. It looks great and is a nice brick border update!
The masonry sealer worked great. It was easy to apply and dried perfectly.
So far, so good. It will take time.
I just tried the mortar out. Need to learn a little more about using it as what I applies turned white. Yes it was sunny and hot. I tried keeping it spritzed and ended up shading the work with tarps, but too late. I’ll try again next week since I see a cloudy day in the forecast. Marie
We took down the Wood pan line in our old home. Built in 1880. All the room is red brick. Except for this one spot that it looks like they ran out. Using pro Mason stains, I was able to make coordinate better with the rest of the room. Very happy with the results! It would have been impossible to achieve without being able to dilute and combine the stains to make multiple colors to match the variants in the original bricks.
Working out great so far
This was awesome. It mixed very well, and even though its still curing, it is very hard now. It was also fun to mix up a mortar by hand the same way they used to do back in the day.
I had my steps repointed but they were way to light and slot of cement left on the brick. These stains worked amazing. Darkened the mortar and made the bricks look new!! Love this product! I used dark buff for the mortar and mixed burgundy and dark red for my brick.