Marmoretto is a natural lime Venetian Plaster that is sold as a powder, that can be used to create various effects, from the well-known Tadelakt to smooth and semi-gloss finishes.
The richness and quality of the lime in Marmoretto will enable you to easily apply it and do thin but enduring decorative coats for internal surfaces. It will also enable you to create great finishes with a strong resistance to mould and bacteria. Marmoretto maintains the permeability of the surface thanks to its important resistance to water vapour.
To add extra protection, Impera Italia strongly recommends using a water-based wax, such as Impera Wax.
How to Apply Marmoretto
When applying Mamoretto, you should apply Unifix Primer first and leave it to dry for 4 to 6 hours.
The product needs to be diluted with 30% of water. Keep mixing using an electric mixer until Marmoretto is completely homogenized. Once this is done, let it sit for a few minutes. Then you can apply as many coats as the look requires. If you want to apply a third coat of Marmoretto, you should do it “wet on wet”, when the second layer has not dried completely. This will allow the marble granules to penetrate the previous coat. Once the finish has dried completely, it should be protected with Impera Wax, preferably the following day. The tool for applying Marmoretto is our Venetian plastering trowel.
Impera Italia’s Advice™
The product has excellent workability for around 2 hours after it is mixed. for this reason, we recommend only mixing the amount required for application during this period. After 2 hours, it will begin to harden and become less flexible. If you are looking for a product that will remain workable for an extended period, please take a look at our Marmorino Fino.
Marmorino was applied on as many as 8 coats in ancient Rome. Nowadays Marmorino is still the most used Italian (or Venetian) decorative plaster, but the application became much more simple, only the distinguished look remained the same.
A: This plaster is suitable for exterior and interior applications, but -like any other plaster- due to it’s absorbency it has to be protected with sealers and sealants in wet rooms.
Q: Can you put Marmoretto over tiles?
A: A firm and even substrate should be created before the Marmoretto application can start.
Q: What’s the advantage of using this Marmoretto and not another?
A: This is a highly standardised, industrial-grade Venetian decorative plaster. Natural and traditional, suitable for artistic applications, with possibly the best workability of all similar plasters.
Q: Can it be applied on floors?
A: No, Marmoretto is not suitable for this purpose, please use our microcement for floors.
Q: How durable is Marmoretto, is it scratch proof?
A: It’s a mineral-based plaster that hardens chemically and turns into limestone in about 2 years, but should be protected in high-traffic areas.
Q: How accurate are your colours?
A: Colours are accurate, differences between batches and specified colours is very little to none. Still, we recommend purchasing a tester pot and consulting with your specialist as various methods of application and some protectors can significantly alter the final look and colour!
Q: Do I need a primer/base coat before applying this plaster?
A: To ensure strong bonding always use the specified primer. Primers ensure resistance, bonding, look and durability.
Q: What should be done when the wall has to be redone?
A: Marmoretto should be lightly sanded and primed, in case of a textured effect it should be covered with fillers or gypsum plaster.
Q: Do I need a specialist to apply Marmoretto?
A: For this finish, it’s highly recommended to contact a specialist. Please see the application difficulty!
Q: What’s the shelf life of Marmoretto?
A: 2 years when stored according to the instructions.