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
This product did exactly what I had hoped for. I had a brick look tile floor that I wanted to distress to a German schmear type of look. I originally left too much on for my liking… my schmear was a little too schmearing!! But Goo Gone Graffiti Remover and a scrub brush did the trick. So happy I found this product. First pic is final results, second pic is original floor, and third was the too much in the middle.
I mixed dark buff, white clay and water (each 1 part ratio). The result was awesome and so easy to use. Applied to stone and grout to soften the gray tone of the creekstone fireplace to appear more beige/soft tan. Love it and highly recommend!
Pro Mason Supply made getting the correct product easy, they offered details and assistance if needed. The offer for support after the sale helped me decide they would be my best option. My house was built in 1870, so it requires specific repair material.
I am confident that if I need additional assistance, Product Mason will provide it.
Pro Mason was very easy to work with. Products showed up on time and worked well on the application.
Great product, it really exceeded my expectations. It was easy to apply and the new color looks original. I can't tell it was applied to the brick 60 years after they were manufactured. I wouldn't hesitate to recommend it to friends and family.
Fast service and great selection.
Such a treasured find for DIYers seeking specialized high quality mortar and reliable service. They offer lime-mortar concentrates designed for old block stone foundations that need to breathe, especially important in climates subject to freeze-thaw cycles. Reasonable shipping times and costs. So far the 3.5 concentrate has set-up very well, and we just ordered some additional 5 gallon bulk boxes.
Cant wait to work on my house. I received it quickly . Thanks guy
The repointing product, the details on use and the delivery process was absolutely stellar. I couldn’t have asked for better.
Finally able to get the right mortar for repairs my 150 year old brick house!
Great to be able to buy small quantities so easily.
The people here went out of their way to help me find the right mortar, answered all my questions and even asked for pics to get it right. I will send them my business even if I could get it down the street I will order what I need from them. Keep up the great customer service.
I like the 1gallon size for special projects because it is easy to handle with very little mess.
Excellent service, lprompt shipping!
After researching lots of companies that make stain for brick I decided to contact Pro Mason for their professional advice. I went with a 4oz sample of antique gray, as suggested, and applied it to my exterior orange brick chimney. It went on nice and easy, has excellent coverage, and dried to a perfect match to my gray vinyl siding! I am currently waiting for the gallon size I ordered to finish the project.
I highly recommend this company for their customer service, shipping, and their quality products.
So far so good
