Modern Masters - Venetian Plaster Topcoat

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This trowel applied clear protective topcoat is intended for use over Venetian Plaster finishes in high traffic areas where washability is imperative or for rooms that experience high humidity. Dries to a satin sheen.

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Dry Times – Dry time is approximately 2-4 hours. Dry time depends on thickness of application, temperature and humidity. (Drying times were recorded at 70°F and 50%RH): Note: Lower temperature and/or higher humidity will lengthen the dry and cure times. 

Protection – After being polished, the Venetian Plaster should be treated with care. It is not scrubbable or water resistant, but it is easily repaired. To provide extra protection in bathrooms or high traffic areas, apply Modern Masters Venetian Plaster Clear Topcoat (VP300).Other protective topcoats cannot be used to protect the Venetian Plaster. 

Coverage – One gallon/3.78 liters will cover approximately 150 to 200 square feet/13.5 to 18 square meters. 

Clean Up – Clean tools with soap and warm water immediately after use. Do not reuse containers and properly dispose of empty containers.

Surface Preparation – The surface should be free of imperfections, sealed with a primer-sealer and have a low sheen. If it is not, fill cracks and nail holes, then seal with a primer-sealer. We recommend Zinsser’s Bullseye® WATER-BASE. (Hint: Tint the primer-sealer to a color similar to the color chosen for the Venetian Plaster). 

Basic Tone on Tone Application – 

Step 1 – Skim Coat: Apply a skim coat of Venetian Plaster with a Japanese Trowel or Blade at a low trowel angle (2 finger space) and scrape off excess at a high trowel angle (3 to 4 finger space). Let dry 1 hour. 

Step 2 – Texture Coat: Apply a texture coat of Venetian Plaster with a low trowel angle and light pressure using a skip trowel technique. This technique will produce peaks that should be “knocked down” by smoothing lightly with a low trowel angle. Let dry for 1-2 hours. 

Step 3 – Skim Coat: Repeat the process done in step one and let dry for 1 hour. 

For suede and stone looks, burnishing/polishing is not needed. 

Burnish/Polish: For a marble-like finish, sand the dry Venetian Plaster in a circular motion with 400 grit dry sandpaper (a palm sander can be used). For a higher sheen, dust off with a soft rag and sand with 600 grit dry sandpaper. Dust off with a damp soft rag. 

To get a very high sheen, after sanding, burnish the surface by rubbing vigorously with your trowel or the flat side of a clean putty knife. This is not recommended for light colors. 

Taping – Use high quality, low-tack tape when taping over surfaces that have been previously painted. 

We make it our mission to ship your order in a timely fashion. Due to the nature of our business and the wide variety of our product offerings we sometimes encounter stock issues. Should there be any issues getting your order shipped we will contact you to update you on the situation. 

All in stock items ship within 24 business hours. If you need your order shipped sooner than that please contact us directly before placing your order.

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Material VOC – MAX. VOC 50 g/L. This product meets SCAQMD Rule 1113 - Architectural coatings; Faux Finishing category - Trowel Applied Coatings 

Handling & Storage – Close tightly all containers when not in use. Store in a cool dry place away from direct sunlight. Do not store or apply in temperatures below 55°F/13°C. Do not freeze. If Venetian Plaster Tint Bases become frozen, allow to completely thaw and come to room temperature before use. Stir thoroughly before use.

Disposal – Dispose of unused or unwanted product in accordance with local laws regulating water-based coatings. 

Health & Safety – Use in a well-ventilated area. Avoid contact with eyes. Wash hands thoroughly with soap and warm water after use. Do not take internally. When sanding, use a properly-fitting, NIOSH approved respirator per the manufacturer’s instructions. Warning! If you scrape, sand, or remove old paint, you may release lead dust. LEAD IS TOXIC. EXPOSURE TO LEAD DUST CAN CAUSE SERIOUS ILLNESS, SUCH AS BRAIN DAMAGE, ESPECIALLY IN CHILDREN. PREGNANT WOMEN SHOULD ALSO AVOID EXPOSURE. Wear a NIOSH-approved respirator to control lead exposure. Clean up carefully with a HEPA vacuum and a wet mop. Before you start, find out how to protect yourself and your family by contacting the National Lead Information Hotline at 1- 800-424-LEAD or log on to 

Skin contact: Thoroughly wash with soap and warm water before the coating dries. Individuals with sensitive skin may require gloves. 

Eye contact: Rinse with clean water for 15 minutes. Seek medical attention. 

Inhalation: To help prevent irritation, use only in well ventilated areas. If irritation occurs, move to fresh air. If irritation persists, seek medical attention. 

Ingestion: Do not induce vomiting. Seek medical attention. 

Read the Material Safety Data Sheet for Additional Health and Safety Information. 

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