Lithomex

Specially Formulated Brick, Stone and Terracotta Patching Material
Based on Natural Hydraulic Lime.

Repairing damaged stonework begins by identifying and understanding the reasons for decay. The usual reasons are excessive moisture, poor repairs, mechanical damage and natural decay. A major reason for damage is inappropriate repairs. Hard pointing or cement-based repair materials are very damaging to soft stone. Lithomex, a lime-based material, is flexible, porous, and lets the building breathe. Hard cement-based materials trap in moisture and salts. Patching stone can be very effective, affordable and can be reversible. The patching material must match the color and texture of the existing stone. It must adhere well, be breathable and have similar thermal expansion and weathering characteristics. Lithomex fulfills these requirements in most cases and, when applied by skilled craftsmen, will lend itself to a perfect match.
Non-pigmented

Stock Lithomex Colors:

Lithomex can be purchased in 1-quart, 1-gallon or 55 pound units. Pricing is as follows:
1-quart Lithomex non-pigmented and any stock color is $25.00
1-gallon Lithomex non-pigmented or any stock or custom color is $45.00
55 pounds Lithomex non-pigmented is $95.00
55 pounds Lithomex stock color is $145.00
55 pounds Lithomex custom color is $145.00

Lithomex - Brick, Stone & Terracotta Repair Mortar Samples Kit:
(Cured samples only without actual useable material which is contained in The Master Conservator’s Kit)

Contains 24 samples of tinted St. Astier Lithomex (Based on Natural Hydraulic Lime Binders)
Cost is $300.

Click here to order your kit



 

Any of the stock Lithomex brick and stone repair mortars can be blended at different ratios to obtain a new hue that may simulate the color of the material you are trying to match.


The following 24 tiles are in the Lithomex Brick, Stone & Terracotta Repair Mortar Samples Kit:


Non-Pigmented Lithomex


LMBR11 Chocolate Brownstone w/Mica


LMBR8 Light Brownstone w/Mica


LMBR7 Dark Browstone


LMEXST0060 Dark Reddish Brownstone


LMRD13.25 Brick Red Brownstone


LMEXST0021 Slate


LMRD5 Salmon Brick


LMRD13.5 Dark Brick


LMEXBR0013 Buff Brick


LMRD12.5 Deep Salmon Brick


LMTN4 Dark Limestone


LMTN 3 Light Indy Limestone


LMEXTC1002 Orange Terracotta


LM100 Yellow Terracotta


LMEXST0062 Raw Umber Sandstone


LM250 Taupe Sandstone


LMGN2 Serpentine


LMEXST0064 Blue Stone


White Modifier


Red Modifier


Black Modifier


Yellow Modifier


Blue Modifier

 

Examples of blends of Lithomex to create a custom Lithomex material:

Marble Wissahickon Schist
Disclaimer:

Many factors affect how images appear on your computer monitor and how they print on your specific printer. It is suggested that you send us a sample or purchase the stock Lithomex kit so that you may view each tile individually or hold the tiles up to a building to determine a match. If you send us a sample we will call you, free of charge, to make a suggestion if one of our stock lithomex colors is similar to the sample you send.

The Master Conservator's Kit

The Master Conservator’s Kit is a collection of LimeWorks.us products used for on site mock-ups, small repairs and color simulations of Brick, Stone, Terracotta and Lime Mortars when attentively designing appropriate and compatible restoration mortars for the conservation of historic masonry elements/structures:

Master Kit

Contents:

The Graveyard Kit:

Please inquire for suggested recipes and take our class before using the material:

Waterglass is a grain strengthener, fortifier and conditioner put into a weak and friable stone prior to doing a repair with Lithomex.

Lithomex is a brick and stone patching material which comes in marble, Indiana limestone, bluestone, slate and sandstone to make 9 types of stone repairs.

Ecologic™ Mortar(F) is for making lime putty to make a setting mortar.

Platinum whitewash is a bright white mineral paint used for whitewashing stones.

Casein glue is used to make a thin brick and stone attachment mortar for work remaining outdoors.

D/2 Biological Solution is a cleaner for removing biological deposits.

Lime Grout Type I is an injectable grout to fill in voids found in the stone.

Pug Duct Putty is plumbers putty used to create a dam to hold grout in place until it cures.

The cost is $350 for the kit.
Workshops are scheduled with groups of 10 or more each buying a kit.

Examples of work performed using Lithomex:

Before Repairs

After Repairs

After Repairs

 

 

Before - Rough concrete balcony

After - A family crest sculpted in place

 

 

Before - Conshohocken United Methodist
After restoration to the bell tower
After restoration to the bell tower
Repaired brownstone using Lithomex

 

Built in the late 1800's, this New York City style "brownstone" home is the only one of its kind in Phillipsburg, New Jersey. The brownstones were pulling away from the back-up brickwork and each stone varied in its degree of degradation. The ornate faces of carved brownstone had blistered and exfoliated. St. Astier's Lithomex, a stone and brick repair material was used. Even the minute bedding cracks were repaired using a colored St. Astier Natural Hydraulic Lime for consolidation work. The facade was also completely repointed using only St. Astier Natural Hydraulic Lime and sand.

Photos: (Click a photo to enlarge)

 

Project: The Princeton War Memorial
Location: Princeton, New Jersey
Architect: Ford Farewell Mills & Gatsch, Architects, Princeton, NJ
Conservator: Aegis Restauro, LLC, Belle Mead, NJ
St. Astier Product used: Custom Colored Lithomex prepared by deGruchy's Lime Works.US

Documents:

Lithomex Material Safety Data Sheet

Specifications for Brick / Stone Repair (Lithomex)

Lithomex User Recommendations & Data

Lithomex Data Sheet

Lithomex Cut Sheet

Water Ratios and Proper Mixing of Colored Mortars