Lime putty

This creates a product that is normally referred to as hydrated lime. Once the water and lime agent are thoroughly mixe the product is heated to a high temperature that helps the mixture to thicken. American Clay offers a pure high-calcium Lime Putty to be used in conjunction with our line of award-winning earth plasters. Technical Data Sheet. Other articles from lancasterlimeworks.

The virtues of slaked lime are many and the versatility of uses unparalleled. This product is aged for a minimum of two months and has exceptional plasticity that is beneficial in dry mortars such as those used for tuck pointing. How to make quicklime?

Hydrated Lime is easier and less costly to incorporate, transport and store, and dolomitic hydrates are most frequently used for masonry mortars and stuccos. What is hydraulic lime mortar? It can be used by trained homeowners, however, because of the issues with color, repairability and its natural properties we recommend only trained installers work with Lime Putty.

Niagara Lime Putty. Slaking quicklime for a long period of time enhances the workability and body of lime used in construction and restoration applications. CaO ) - (MgO ). We manufacture lime putty by adding water to the finest quality Cumbrian quick lime , a process known as slaking. The slaked quicklime is then left to mature for at least three months. Lime putty , when blended with sand aggregates and stone dust will create lime mortars and renders, and when diluted makes limewashes.

Hydrate Lime vs Lime Putty – Mixing As the market increasingly becomes aware of the use of building lime for historic masonry restoration there will always be challenges in making sure everyone understands the decisions they are making, why, and most importantly, the materials they are working with. Lime putty based on high calcium lime, aged for at least months in putty form, is favored by decorative plasterers for its unique working characteristics. Traditional lime mortar is a combination of lime putty and aggregate (usually sand). A typical modern lime mortar mix would be part lime putty to parts washe well grade sharp sand.

This energizes the calcium in the mortar. We recommend using an Imer Mixer or our drill beater to “knock up” the mortar before using. Each bucket comes with water on top that must be removed before knocking up.

A given amount of hydrated lime occupies far more volume as a dry powder than it does after mixing with water. Thus, when lime is measured as a dry powder, less is actually put into the mixture than is used if the lime is measured as putty. When wette dry hydrate lime will typically contract, on average, to of the original dry volume. A common method for mixing lime mortar with powdered lime is as follows: Gather your ingredients, san lime , and water Measure out your ratio of sand to lime , for example buckets of san and bucket of lime for a 3:ratio. Mix the dry ingredients thoroughly so all the sand is coated with lime ,. This product has exceptional plasticity that is beneficial in dry mortars such as those used for tuckpointing.

Natural Pigments Aged Lime Putty is a high-purity lime putty product that is fully slaked and screened for immediate use. Mortar, Plaster or lime wash. Lime putty is fabulicious, and you can use it in plaster, as a lime wash, or in lime mortars. You can also buy lime putty in tubs or bags, depending on where you live.

They suggested using a mix of one part putty to three parts sand for coarse stuff, one part putty to three parts sand for the second coat, and putty alone or one part putty to one part fine sharp sand. Lime Putty should be stored in a sealed bucket with at least inch of water on top of the putty to protect it from exposure to the air. In cases where the substrate is very tightly boun or when the greatest transparency is desire factory produced Lime Putty is preferable over powdered lime. Lime putty mortar also exhibits extensive autogeneous healing, a phenomenon unique to high lime mortars , which heals microcracks that form during stress by stitching the mortar back together naturally with free lime particles in the mortar.

US Heritage Group , Inc. Our custom mortar matching and laboratory services are specifically set up to handle heritage mortars and restoration samples. Our Traditional Lime Putty is produced in Italy from to lumps of high purity calcitic limestone (CaO).