How to: Quartz Primer

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Download Quartz Primer MSDS sheet. (Word doc)

Composition:
Pure acrylic resin specified for alkaline products (plasters and cements) with a fine quartz sand additive and special emulsifier to keep the quartz sand in suspension.

Packaging:
5-litre polyethylene containers

Theoretical yield:

5 Gal: 1000 – 1500 sq. ft.
1 Gal: 200 – 300 sq. ft.

Where to use Quartz Primer:
Quartz Primer is used in four situations:
1. When the substrate is dusty.
2. To strengthen a fragile surface that has, for example, old paint which is adherent, yet soft.
3. On plaster to separate a slightly acid material such as gypsum from an alkaline material such as lime.
4. To make the absorption of the wall uniform when it has several different substrates. For example, if you want to apply stucco to a wall which has been previously painted with acrylic paint then later had its defects repaired with plaster, it is recommended that you use Quartz Primer-when the surface is already coated in acrylic paint, a primer is not absolutely necessary, but we do advise using the Quartz Primer before applying Marmorino Classic or Marmorino Velvet .

-Quartz Primer makes the surface rougher, allowing a better adhesion.

-It is not necessary to use a primer if you are applying a lime-based plaster over an already existent lime-based substrate.

-You can always use a normal acrylic primer, but we strongly suggest using Quartz Primer on all very smooth surfaces (dry-wall, gypsum plaster, old marmorino, wood). By using a primer with quartz, the surface becomes rougher, increasing the contact surface area by two and a half times thereby increasing the adhesiveness of the plaster to the substrate. It also makes it much easier to apply the first coat of plasters such as Marmorino Classic.

How to use Quartz Primer:
Dilute by adding 40-50% water, mixing well and applying it as you would a paint using a roller or paintbrush.