Museum-Quality White Plaster for Casting and Modelling

DIPON® Casting Model Plaster 80+ Premium is a finely ground, modified natural plaster developed for detailed mould casting, modelling, artistic reproduction and professional creative work.

Its naturally white colour, fine particle structure and creamy consistency help reproduce intricate mould details while supporting excellent air release. The material hardens naturally in air and requires only clean water, making it a convenient choice for artists, hobbyists, educational projects and professional workshops.

Choose Casting Model Plaster 80+ when you need a fast-setting, smooth and dependable white casting material for decorative objects, models, mould work, stucco applications or indoor restoration projects.

Choose This Product When You Need

A finely ground plaster for detailed mould casting
A naturally white material with a whiteness level of at least 82
A smooth and creamy consistency for clean decorative work
Approximately 10 minutes of practical working time
Fast setting for small and medium-sized projects
Excellent deaeration to help reduce trapped air
A material suitable for both flowable casting and thicker modelling
A finished surface that can be painted, sealed or coated after drying

What Makes Casting Model Plaster 80+ Different?

Museum-quality formulation: Developed for high-quality artistic, professional and educational applications.
Fine-grained texture: Produces a smooth mixture capable of reproducing fine mould details.
Naturally white: Achieves clean white castings without requiring additional white pigment.
Excellent deaeration: Helps air introduced during mixing rise out of the material.
Good stability and hardness: Suitable for decorative models, reproductions and moulded objects.
Air hardening: Requires clean water rather than a separate chemical hardener.
Low-odour formulation: Free from formaldehyde, solvents, VOCs and corrosive additives.
Manufactured in Germany: Produced according to strict national quality and safety standards.

Ideal Applications

Decorative mould casting
Trays and small dishes
Candle holders
Figurines and ornaments
Coasters and decorative bases
Relief designs and wall decorations
Model and prototype making
Artistic reproductions
Stucco and application work
Model and mould making
Indoor restoration projects
Teaching, research and supervised craft activities
Mixed-media and resin-art projects

Compatible Colouring and Finishing Materials

Once completely dry, Casting Model Plaster 80+ may be decorated or coated with compatible materials, including:

DIPON® Aqua Blends water-based colour concentrates
Compatible water-based pigments
Acrylic paints
Decorative varnishes
Epoxy resin coatings
Polyurethane resin coatings
Metallic leaf and decorative flakes
Suitable sealers and protective finishes

When to Choose Another Casting Material

Choose epoxy resin or another polymer casting compound when you need a transparent, flexible, naturally waterproof or highly impact-resistant finished object.

Casting Model Plaster 80+ is primarily intended for indoor decorative applications. Pieces exposed to moisture, regular handling or staining should be allowed to dry completely and then protected with a compatible coating or sealer.

Choose a slower-setting casting material when working on a large or complicated project that requires more than approximately 10 minutes of working time.

Quick Specifications

Product: Casting Model Plaster 80+ Premium
Brand: DIPON®
Pack size: 2.5 kg
Material: Finely ground modified natural plaster
Quality: Museum quality
Form: Dry casting and modelling powder
Finished colour: Natural white
Whiteness level: At least 82
Practical working time: Approximately 10 minutes
Fast curing time: Approximately 20 minutes
Careful demoulding: Approximately 30–60 minutes
Approximate drying time: Around 24 hours at room temperature
Further processing: Approximately 36–48 hours, provided the casting is completely dry
Minimum ambient temperature: Do not process below 4°C
Formaldehyde: 100% formaldehyde-free
Solvents and VOCs: 100% solvent- and VOC-free
Country of manufacture: Germany

Mixing Ratio for Flowable Casting

Mixing ratio: 100 g of plaster with 65–70 g of clean water.
Use approximately 65 g of water for a slightly thicker consistency.
Use approximately 70 g of water when greater flow is required for detailed silicone moulds.

Mixing Ratio for Modelling

Mixing ratio: 100 g of plaster with 50–60 g of clean water.
This reduced water ratio produces a thicker, creamier consistency suitable for modelling, stucco and application work.

Example Casting Quantities

100 g plaster: Add approximately 65–70 g water.
250 g plaster: Add approximately 163–175 g water.
500 g plaster: Add approximately 325–350 g water.
1 kg plaster: Add approximately 650–700 g water.
Complete 2.5 kg pack: Add approximately 1.625–1.750 kg water.

How to Mix and Cast

Prepare all moulds, tools and materials before mixing.
Measure the required amount of clean water into a clean mixing container.
Weigh the required quantity of plaster accurately.
Slowly sprinkle the plaster powder evenly across the surface of the water.
Allow the powder to absorb the water for approximately 90–120 seconds.
Mix thoroughly for approximately two to four minutes until a smooth and uniform consistency is achieved.
Scrape the sides and bottom of the container while mixing.
Gently tap, shake or vibrate the container to help trapped air rise to the surface.
For detailed moulds, brush a thin layer of mixture into difficult-to-reach areas before completing the pour.
Pour the remaining mixture slowly into the mould.
Gently tap or vibrate the filled mould again to help release remaining air.

Colouring with DIPON® Aqua Blends

DIPON® Aqua Blends water-based colour concentrates may be used to create light, dark or pastel-coloured castings.

Recommended starting quantity: Approximately 0.5%–2% by weight.
Add the colour concentrate gradually until the required shade is achieved.
Use a lower concentration for lighter or pastel colours.
Complete a small test batch before colouring an important project.
Record the plaster, water and colour quantities when repeatable results are required.

Demoulding and Drying

The casting may normally be removed carefully from the mould after approximately 30–60 minutes.
Handle newly demoulded pieces carefully because the material may still be damp and will not yet have reached its full hardness.
Allow approximately 24 hours at room temperature for the casting to dry.
The white appearance will become stronger as the material continues to dry.
Allow approximately 36–48 hours before painting, sealing, sanding or coating.
Do not continue with finishing work until the casting is completely dry.
Thicker pieces, cool temperatures and humid conditions may increase drying time.

Preparation Notes

Use clean stainless-steel or rust-free tools.
Make sure moulds and mixing equipment are clean and free from contamination.
Prepare everything in advance because the practical working time is approximately 10 minutes.
Always sprinkle the plaster into the water rather than pouring water onto a pile of powder.
Avoid aggressive high-speed mixing because it may introduce unnecessary air.
Do not add more water after the mixture has started to stiffen or set.
Do not attempt to soften setting plaster by mixing it again.
Test unfamiliar pigments, paints, sealers and coatings on a small sample first.

Finishing Recommendations

Allow the casting to dry completely before applying a decorative finish.
Sand rough edges carefully using suitable abrasive paper.
Remove all dust before painting, sealing or coating.
Apply a compatible sealer when additional stain or moisture resistance is required.
Epoxy resin, polyurethane resin, varnish or acrylic paint may be applied after complete drying.
Do not apply an airtight coating while moisture remains inside the casting.

Safety Information

Read the product label and available safety information before use.
Do not inhale or swallow the dry powder.
Wear suitable respiratory protection when measuring or mixing fine powder.
Wear protective gloves and safety goggles.
Work in a clean and properly ventilated area.
Children must only use the product under responsible adult supervision.
Do not eat, drink or smoke while handling the product.
Do not pour dry powder or mixed plaster into toilets, sinks or drains because it may harden and cause blockages.
Allow leftover mixed material to harden before disposing of it according to local requirements.
Keep the package securely closed and away from young children and pets.

Cleaning and Storage

Clean tools immediately after use with water before the plaster hardens.
Do not rinse large amounts of plaster residue into drains.
Store the powder tightly sealed in its original packaging.
Keep it in a clean and dry location.
Protect it from moisture, humidity and contamination.
Use only clean and completely dry tools when removing powder from the package.

Selected by EltoBert Studio

EltoBert Studio supplies carefully selected DIPON® casting materials, epoxy resins, pigments and mould-making accessories for artists, makers and professional workshops. As an official DIPON® distributor in Malta, we help customers choose the correct materials and methods for decorative casting, resin art and creative production.