Eco Cast Sealer 100ml for Gypsum, Plaster, Jesmonite

Eco Cast Sealer & Surface Leveller, Medium Gloss Finish, 100ml

Eco Cast Sealer is a thick, water-based sealer made for gypsum, plaster, Jesmonite and eco casting powder crafts. Its 2-in-1 formula seals porous surfaces while helping to fill tiny pinholes and smooth minor surface imperfections before the final finish.

Applied with a brush, it produces a natural matt to medium gloss appearance and deepens the look of pigments, terrazzo chips and marble effects. The sealed surface is easier to keep clean and offers added protection from dust, handling marks and occasional light moisture. It is a useful resin-free finishing option for home crafters, studios and small craft businesses.

Key Features

• Seals porous casting surfaces
• Helps cover tiny pinholes and minor imperfections
• Leaves a smooth matt finish
• Enhances colours, terrazzo and marble patterns
• Helps reduce dust, stains and handling marks
• Water-based, quick-drying and low-odour
• Suitable for gypsum, plaster, Jesmonite and eco cast items

Suitable For

• Trinket trays and jewellery dishes
• Coasters and decorative trays
• Candle holders and plant-pot covers
• Terrazzo and marble-effect castings
• Ornaments and other indoor décor

How to Use

1. Make sure the casting is fully cured, clean and dry.
2. Shake well before use.
3. Apply a thin, even coat with a soft brush.
4. Allow approximately 30–60 minutes to dry.
5. Apply another thin coat if needed. For a glossy finish, apply a compatible gloss varnish separately.

Technical Information
Product type: Water-based sealer and surface leveler
Finish: Matt - Medium Gloss
Application: Brush-on
Drying time: Approximately 30-60 minutes
Pack size: 100ml

Package includes: 1 × Eco Cast Sealer bottle

This product provides light surface protection but does not make castings fully waterproof, heatproof or food-safe. Test on a small area before full application.