Epoxy is one of the most versatile materials for craft projects, repairs, model making, and industrial applications. But if you want to use epoxy for a specific purpose, it's important to understand its properties.
Is epoxy waterproof? Can you use it around food? How heat-resistant is it, really?
In this article, we answer the most frequently asked questions about epoxy. This will help you work more safely and efficiently – whether you're making jewelry, producing casting molds, or sealing surfaces.
Yes – epoxy is completely waterproof once it has cured.
This is precisely why epoxy is often used for boats, waterproof casting molds, and as a protective coating on wooden or metal surfaces. After curing, it forms a hard, impermeable barrier against moisture.
Waterproof properties:
Tip: Always allow the epoxy to fully cure (usually 24–48 hours) before contact with water. For long-term outdoor use, consider using an additional sealer.
That depends on the type of epoxy. Most epoxy products are not food-safe by default , but there are exceptions.
Standard epoxy (such as casting or modeling epoxy):
Food safe epoxy :
Important: At Siliconesandmore.com we do not recommend using standard epoxy ( such as Apoxie Sculpt ) in food applications unless explicitly labeled as food safe.
Yes – but up to a certain temperature.
Heat resistance depends on the type of epoxy you use. For example:
Apoxie Sculpt :
NB:
Do you need an epoxy for high temperatures? Always check the technical specifications beforehand.
|
Characteristic |
Performance of epoxy |
|
Waterproof |
Yes, after complete curing |
|
Food safe |
Only if specifically stated |
|
Heat resistant |
Up to 160°C (depending on type) |
Apoxie Sculpt
Perfect for sculptures, jewellery, model making – waterproof, self-hardening and heat resistant up to 160°C.
Epoxy casting resins
For casting, sealing, and laminating. Some variants offer additional chemical and moisture resistance.
Not sure which epoxy you need? Contact our experts for personalized advice.
Epoxy is a powerful material—waterproof, durable, and heat-resistant—but not every type is suitable for every application. By understanding the properties of your epoxy, you'll get the most out of your project.
Whether you are casting a sculpture, restoring an object or making a jewelry set: the right epoxy makes all the difference.
Discover our full range of epoxy products and Apoxie Sculpt for professional results.
Waterproof. Heat-resistant. Built to perform.
Order now at Siliconesandmore.com
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