Question 1

What substrate preparation is required before applying Grassello di Calce or Marmorino?

Accepted Answer

Substrates must be smooth, structurally sound, and finished to a Level 5 drywall specification. Apply one to two coats of an acrylic mineral quartz primer (such as Quartz Primer) to ensure uniform absorption and mechanical keying before troweling authentic slaked lime plaster.

Question 2

Can Venetian plaster or Microcement be installed in shower wetrooms and bathrooms?

Accepted Answer

Yes! For shower interiors and direct water exposure, we install a seamless 2-component waterproof Microcement system sealed with polyurethane. For bathroom accent walls outside direct shower spray, authentic lime-based Venetian plaster and Marmorino sealed with hydrophobic olive oil soap (Marseille soap) or cera wax provide excellent moisture resistance.

Question 3

What are the curing and drying times for Italian lime plaster?

Accepted Answer

Lime plaster sets via water evaporation and carbonization (absorbing atmospheric CO₂ to revert back into solid limestone). Allow 12 to 24 hours of drying time between coats. Full carbonization and hardness are achieved over 28 days.

Question 4

Can Exotic Wall Finishes match custom colors for Marmorino and lime washes?

Accepted Answer

Absolutely. We tint our authentic Italian lime plasters using UV-stable inorganic mineral pigments, allowing us to formulate custom color matches for interior designers, architects, and luxury homeowners.

Question 5

How do you maintain and clean polished Venetian plaster walls?

Accepted Answer

Clean polished lime plaster surfaces with a soft microfiber cloth dampened with warm water and natural Marseille soap. Avoid abrasive sponges, acidic cleaners, or solvent-based chemicals. Reapply protective wax every 3 to 5 years in high-traffic commercial environments.

Question 6

What trowels and tools are recommended for burnishing Venetian plaster?

Accepted Answer

We recommend imported Italian stainless steel trowels (such as Pavan trapezoid trowels) featuring pre-ground beveled edges, mirror-polished flexible steel blades, and ergonomic rubber or wooden handles to eliminate black metal marks during burnishing.

EXOTIC PLASTER STUDIO

Gian Carlo
Sagasti

Exotic Wall
Finishes

Marmorino
Tools

Architectural & Technical Q&A

EXOTIC PLASTER STUDIO

Gian CarloSagasti

Exotic WallFinishes

MarmorinoTools

Architectural & Technical Q&A

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Gian Carlo
Sagasti

Exotic Wall
Finishes

Marmorino
Tools