Zhermack ZA 10 Orange – Orange Platinum Addition Silicone for Mold Making & Casting

Premium Orange Platinum-Addition Silicone for Professional Mold Making and Casting Applications

ZA 10 Orange is a pourable, room-temperature curing, two-component platinum-addition silicone that cures at 23 °C to an orange end product with a Shore A 13 hardness. With a working time of 15 minutes and a curing time of 120 minutes at 23 °C, this product offers a practical combination of detail reproduction, elastic recovery, and demolding. The mixing ratio is 1:1 by weight; the platinum catalyst is contained in the Catalyst component. ZA 10 Orange is suitable for applications where flexibility, tear strength, and reproducible processing are important.

Key Benefits

• 1:1 Mixing ratio: – Equal amounts of Base and Catalyst simplify weighing.
• 15-minute pot life: – At 23 °C, there is time for mixing, degassing, and controlled pouring.
• 120-minute curing time: – The mold can be efficiently demolded at 23 °C.
• Shore A 13 hardness: – The flexible mold supports the demolding of complex details.
• 14 N/mm tear strength: – The cured silicone is suitable for repeated use.
• 350% Elongation at break: – The high elongation provides room when releasing cast parts.

Typical Applications

• Silicone molds for polyurethane resins in prototyping and product development.
• Reproduction molds for acrylic resins in model making, architectural modeling, and product design.
• Casting molds for plaster and coatings in set construction, architecture, and craft applications.
• SFX, prop, and set construction for film, television, theater, and events.
• Industrial models and functional prototypes where elastic demolding is required.
• Art and sculpture reproductions where flexibility and tear resistance are important.

Processing Instructions:

1. Stir Base and Catalyst separately before weighing the components.
2. Weigh both components in a 1:1 ratio. Only use Base and Catalyst with the same batch number; a deviation of up to 5% will not change the result according to the provided information.
3. Mix vigorously until the color is uniform, scraping the bottom and sides of the mixing container.
4. Degas the mixture if necessary to reduce trapped air.
5. Pour within approximately 15 minutes, preferably from a height of about 30 cm.
6. Allow to cure for approximately 120 minutes at 23 °C. At 40 °C, working and curing times are approximately halved; at 4 °C, the working time doubles and curing takes about three times longer.

Technical Characteristics

The mixture has a viscosity of approximately 4,500 mPa·s and a density of approximately 1.10 g/cm³. The cured silicone has a tensile strength of approximately 6 N/mm², an elongation at break of approximately 350%, a tear strength of approximately 14 N/mm, and an operating temperature range of −40 to 200 °C. These are typical values after 24 hours of vulcanization at 23 °C and are not intended as product specifications.

Manufactured by Zhermack S.p.A., a specialist in materials for professional model making and mold-making applications.

Important Warning: Inhibition in Addition Silicones

Note: This is an addition silicone (platinum-cure). These silicones can be inhibited by sulfur, nitrogen, amino compounds, and metal salts. If you are unsure whether gloves, spatulas, models, or 3D printing materials contain these substances, perform a small test first. Inhibiting substances are found in latex gloves, some plastilines, condensation silicones, one-component silicone sealants, and certain 3D printing materials. If in doubt, apply a layer of polyvinyl alcohol (PVA) as a release layer.

Professional Support

For ZA 10 Orange, ensure you use the same batch number, a correct 1:1 mix, and a clean, dry, and grease-free surface. Contact us for technical data sheets, processing manuals, or product advice.