Lithomex Brick and Stone Repair Material:
Lithomex is a specially formulated brick, stone, and terra cotta surface repair/ simulation material based on Pure Natural Hydraulic Lime and aggregates. Due to the presence of Natural Hydraulic Lime, Lithomex is porous allowing the composite repair to breathe. Furthermore, Lithomex comes in a neutral white or custom colored mortar supplied in 55 lbs (25kg) bags, which you can add mixing water too. Additionally, it is also available in units of 3 lbs or 15 lbs containers for smaller orders.
Environmental Requirements:
Users must follow the Manufacturer’s instructions when storing and handling materials to protect them from damage and moisture. In this regard, it is recommended to take necessary precautionary measures to assure excessive temperature changes do not occur. For instance, do not apply a patching mortar below the minimum ambient temperature of 45 degrees F and above the maximum of 85 degrees F. Furthermore, it is required that these temperatures are maintained for a minimum of 48 hours prior to the application and continue until Lithomex cures (for curing information please see the tech documents under “Data Sheets”). Likewise, during hot weather protect the repair from uneven and excessive evaporation during dry and hot weather. Finally, it is suggested to provide tarping over the outside of all scaffolding.
Research Articles
Available in natural and 24 Stock Colors.






























































Excellent product. I do preservation work on historic sandstone grave markers in Southern Illinois that have a distinctive tan color. The Berea Sandstone Lithomex has excellent texture and workability but tends toward the grey rather than tan color. I compensate by adding 1 t. of yellow color tint and 1/8 t. of red or brown per cup of mix. I wish there was a version of this in a tan color.
It was easy enough to use but not trivial. This was our first time using it and we were very careful. We have some training (a CCUS class) but not in this product. We learned by reading how others used a similar product.
This stuff is fantastic. A concrete brick wall was severely damaged by water trapped under thick layers of paint. After I removed the paint I had no idea what to do with them. I did not want to make hundreds of replacement bricks. When asking about another issue Daniel suggested Lithomex for surface repair of the bricks. It worked great. I was even able to restore some details on the corner bricks with the Lithomex. Here are some pictures of the project. One shows the work in progress o the brick resurfacing. The next shows the column with replacement bricks (dark) and the Lthomex repair (white). The last two show the final wall with Lime paint.
Shipping was fast. Product performed as expected! Thanks
I’m a long-time customer and can say that Lithomex is the product of choice for cemetery monument repair (see my review from a few years ago).
I’d like to comment on my most recent interaction as I think it demonstrates the good customer service this company provides. Long story short: I ordered some Lithomex but was sent the wrong color. So, I emailed and they immediately sent out the ordered material (or so we thought). Well, lo and behold I again received the wrong color. So, this time I called and sent them photos. They again immediately sent out the correct color (this time for real). I offered to pay for one of the incorrect colors as I could use it but they said no. Thus, I now have a very long supply of Neutral. These folks are the kind of people you want to do business with.