materials | monum

GLASGRID 150

CLEANING

ACETONE

CAS 67-64-1. Strong solvent and cleaning agent, miscible with water

AMMONIUM CARBONATE

CAS 506-87-6 Stone cleaning material in site, building and art restoration

ARBOCEL

Arbocel Powdered Cellulose is composed of pure cellulose fibers
of hydrophilic nature, which is only partly swollen up by water
without dissolving and is insoluble in most solvents.
Inert filler for cleaning mixtures and poultices preparations applied to

stone surface and fresco to allow supportive and absorptive properties

BAC 50

Quaternary ammonium salt. Broad spectrum of activity against algae,

lichens, slime-forming organisms, bacteria, fungi and yeasts

CITROSOLV

CAS: 5989-27-5 Environmentally safe cleaner and metal degreaser
Used on stone, concrete, porcelain, metal, enamel, plastic
Natural cleaning solvent, degreaser and graffiti remover
Diluted in ethanol for specific cleaning purposes
Non-corrosive and 100% biodegradable

Not for use on aluminium

Chemical Base: d-limonene 94-98%

DEIONIZED WATER

Purified water by reverse osmosis that removes ionic contaminants

EDTA 2Na

CAS 139-33-3, 6381-92-6 Stone cleaning and desalination process

ETHANOL

CAS 64-17-5. Solvent, thinner and cleaning agent. Miscible with water

SEPIOLITE

Absorbing clay mineral composed of hydrated magnesium silicate.

In stone conservation is used to remove ingrained dirt from stone.

Poultice made by mixing Sepiolite with Ammonium Carbonate and

deionized water is applied to surface by hand to thickness 20 mm.

After 24 hours, slight cracks will appear in partially dry poultice,

that should then be removed a little at a time. Wash immediately

freshly exposed surface with distilled water, sponge and brush

CONSOLIDATION

structure, building elements and surface

HYDRAULIC LIME
Leading binder in stonework and masonry structures prevailing centuries and millennia
Buildings repaired using Portland cement mortars showed disastrous consequences:
1. Cement mortars are rigid and crack under stress, transferring fractures into masonry
2. High density, crystal structure cement is non porous. Cement mortars crack allowing

water into the wall with no ability to evaporate. Evaporation occurs through masonry,

spoiling the stone, leaving mortar to collect more water and increase deterioration
3. Chemical action between stone and cement takes place causing salt staining and

in case of some sandstone very rapid spoiling.

Portland cement properties made possible the use of various sand aggregates.

Sands increase mortars density, aggravating water retention problems

Hydraulic lime mortars allow walls to breath better and moisture can evaporate.

Masonry life is increased. Mortars and renders do not set too hard.

Thermal movements accommodate without damage. Expansion joints are avoided

Quick setting, enabling rapid building offer significant degree of flexural strength.

Insulation is improved and cold bridging reduced. Reduced risk of condensation.

No risk of salt staining. Mortars and renders reabsorb CO2 during carbonation

Easy alterations and revisions of masonry are possible.

Lafarge NHL 3.5

medium strength hydraulic lime