Frequently Asked Questions
We have questions and answers to help you decode the terminology and the fundamentals of mouldmaking and casting.
General Information
Mouldmaking Questions
- Do I have to vacuum de-gas the silicone rubber? Is vacuuming the rubber that important?
- How do I release silicone from silicone?
- How much mold rubber do I need?
- Do you have a rubber that is food safe for casting chocolate and other food items?
- What are the major differences between tin-cure (condensation cure) and platinum-cure (addition cure) silicone mould making rubbers?
Casting Questions
- What is the heat resistance of rigid expanding foams?
- What is rotational casting? Are some resins better for rotational casting than others?
- What is pressure casting? Will it completely eliminate bubbles from my plastic casting?
- Is there a way to improve surface finish when casting a rigid or flexible foam?
- How can I avoid bubbles in my casting?