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Grassello Di Calce 10 lbs - Aged over 11 years

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Original price $39.50 - Original price $39.50
Original price
$39.50 - $39.50
Current price $39.50

10 Lbs, Aged over 11 years

High calcium lime putty ideal for producing lime putty mortar, lime plaster, renders, stucco, restoration work and green building. 

Our Traditional Lime Putty is produced in Italy from 5" to 10" lumps of high purity calcitic limestone (CaO>98%). It is fired at low temperatures (<1000° C.) in indirect flame, natural draft, continious production vertical kilns fueled by wood waste from an adjoining lumber mill. 


Grassello may contain some particles of dehydrated lime!

Occasional small pieces of dried (carbonated) lime putty inevitably fall off the equipment which transfers the slaked lime from the vats into the buckets, A VERY MESSY BUSINESS!  This is a testament to the ARTISANAL production of our lime putty and in no way these inclusions are detrimental to the quality and performance of our lime putty. 

These lime “aggregate" particles are actually WELCOME in restoration where they resemble the underburnt/over burnt lime particles inclusions often present in original historic lime mortars.

GRASSELLO can be screened or filtered in order to remove these particles and be suitable for lime paint, fresco and fine plaster finishes. Or select our CREMA DI CALCE  (Micronozed Lime Putty).

Color = bright white (L = >97 )

pH = 12.4 

Chemical composition:  Ca(OH)2

Limestone Purity:

CaO + MgO= >98%

MgO = < 0.10%

CO2 = 1.5%

SO3 = < 0.15 %

Impurities :

(SiO2, Al2O3, Fe2O3) = <0.5 %

Product Information Sheet

Lime Putty SDS

Guide of Suggested Mix Ratios

Questions & Answers

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  • I am using Grasello di Calce to make mosaics and I need time to place mosaics in the Calce. Also, is this product pre-mixed? If not, what are the proportions to let it dry very slowly.

    Grassello Di Calce is a pure aged lime putty imported directly from Italy. Depending on the specific application it is normally mixed with a fine sand of some kind, unless a lime-wash is being made.