Lime Mortar Concentrate - PHL 3.5
Lime Mortar Concentrate - PHL 3.5
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Repointing Coverage
Repointing Coverage
Brick: 1 Gallon = 30 Square Feet (based on ⅜” x ⅝” joint size).
Stone: 1 Gallon = 60 Linear Feet (based on ⅝” x ⅝” joint size).
Coverage rate estimates are based on materials mixed at a ratio of 1 part mortar concentrate to 3 parts sand. Please note that coverage rates listed are an estimate only.
Need Materials Recommendations?
Need Materials Recommendations?
If you could use a recommendation for materials to sample or use on your project, please don't hesitate to contact us and we'll do our best to help guide you in the right direction!
Restore the timeless beauty and structural integrity of your historic masonry with our PHL 3.5 Lime Mortar.
Preserving a historic building is a labor of love, whether you’re a professional mason or a homeowner dedicated to doing it right. Standard modern cement is often too rigid for older structures, trapping moisture and causing stone or brick to flake and crack over time.
Our PHL 3.5 Lime Mortar Concentrate is designed to respect the original craftsmanship of your building. It offers the same breathability and durability as traditional hydraulic lime, but in a flexible concentrate that you mix with local sand. This ensures your repair doesn't just look authentic—it functions exactly the way historic masonry was intended to.
Why PHL 3.5 is the Right Choice
- Built for Longevity: Unlike Portland cement, this pozzolanic lime blend allows your masonry to "breathe" and flex. This prevents moisture buildup and protects your walls from the damage caused by freeze-thaw cycles.
- The "Goldilocks" Strength: Rated at a 3.5 (moderate) strength, this formula is the versatile middle ground—stronger than our 2.0 for fragile brick, but more flexible than our 5.0 for high-exposure areas.
- Multiple Sizes Available: Choose from quart, gallon, 5-gallon, and bulk pallet quantities to match the scale of your job, from minor touch-ups to major restorations.
- Visual Accuracy: Choose from White, Gray, Light Buff, Dark Buff, or Dark Red to get a seamless match with your existing joints. Color packs are packaged separately with the mortar so you can add less pigment while mixing to adjust the shade of the mortar.
- User-Friendly: We’ve stripped away the complexity. Just follow the mixing ratios for sand and water to get a smooth, workable consistency that’s ready for the trowel.
Best Uses
- Repointing: Filling in aged or receding joints in historic brick and stone.
- Structural Health: Fixing cracks and gaps to stop water infiltration.
- Heritage Restoration: Maintaining the aesthetic and physical integrity of buildings originally constructed with lime-based mortars.
Mixing Instructions:
- Combine one part PHL 3.5 concentrate with 2.5 to 3 parts clean sand.
- Gradually add water until the desired consistency is achieved.
- Mix thoroughly until the mortar is smooth and homogenous. Mortar is ready to use right away.
Safety Precautions:
- Always wear appropriate safety gear, including gloves and eye protection, when handling mortar.
- Follow the manufacturer's instructions and safety guidelines for proper mixing and application.
Invest in the preservation of your historic masonry with our PHL 3.5 Lime Repointing Mortar. Order your quart or gallon concentrate today and experience the difference that quality, authenticity, and breathability can make.
Mortar Mixing Demonstration - Quart-Size Container :
Let customers speak for us
Someone rebuild our concrete steps at the top where they were pulling away from the house, but they did not use black mortar, they did a good job with the craftsmanship, but the mortar looked awful. Thanks to the stain from ProMason our steps look so good!.
The Mortar stain was amazing! Easy to apply and dramatically improved the appearance of our fireplace,. Allowing a DIY correction lof a mismatched, botched professional repair. More color choices would be helpful. Thank you.
I had a problem with the my first order of masonry stain. I was replaced quickly. Great customer service.
The masonry stain is a lifesaver! Love it! Before you freak out over the price it can be dilluted 3x water to stain and do so much coverage. My chaotic multicolor brown brick is now a beautiful warm whitish color. I got the cream masonry stain
I had a chaotic brown, red, cream and gray brick home feom the 70s and wanted to modernize it so I got the cream masonry stain and dilluted it 2x water to stain and did a wash and absolutely love the results. Great product!!!! Would love to show pics?
Great information on the website to select the right mortar for the job I am going to attempt. They also included a print out in the box with further instructions and advice. Fantastic!
Great product! Fast delivery. Ordered on Monday and received on Friday right on time for my weekend project.
I ordered samples for mortar stain, and plan to order gallons of the stain for our project. Ordering was easy and shipping was fast. The stain samples had leaked a little in shipment, but we had plenty to test the stain. The stain itself works perfect and cleans up easily and doesn't have a strong odor, which I was surprised by. I had a question about coverage and reached out to Pro Mason through the contact page. They were quick to respond, helpful and thorough in their reply. Would recommend the products and company to others.
I used the brick stain on two fireplaces. The first one I did using the cream color and it is perfect. For the second one, I used charcoal and it came out a bit dark. (Just like with paint, it starts out light and dries darker.) Because I preferred the color of the wet version of the stain, I decided to go back over it with a paint wash. It was sooooo much harder to do a paint wash! With the stain, it was much easier to get a consistent finish. I am sticking with ProMason for any of my future brick projects!
Really happy to have found this source for good historic masonry repair. I am very happy with the mortar and directions they sent, and their shipping was very fast too. I’m sure I will be a loyal customer for years to come.
Ordered 3 samples of brick stain. I’ve only done a sample of them on a brick yet the coverage on 2 of the 3 was excellent with only one coat with a brush. My middle color was a custom 50/50 mix of the other 2. The 3 rd stain sample didn’t make it to the final brick sampling.
I am entirely new to masonry, but I managed to repoint a section of my 300 year old stone foundation with lime mortar, and I’m very happy with the results. I was not able to find the appropriate mortar locally. Maybe a bit crude, but I bet it’ll hold up another hundred years!
