Composimold CMLT20 ComposiMold-LT (Original) - 20oz (567g) - Yellow
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Product Information
Full details
This 20oz tub of ComposiMold-LT is a reusable mold-making material ideal for hobbyists, craft artists, and beginners in sculpting and modeling. Its primary benefit is the ability to create multiple casts from a single mold, significantly reducing material waste and cost. A potential caveat is that it requires melting and pouring, which involves careful temperature management. Key features include its non-toxic, microwaveable, and reusable nature, making it a versatile and safe option for various art projects with plaster, cement, epoxy, and polyurethane.
All features
| Colour | Yellow |
|---|---|
| Model Part Number | CMLT20 |
| Brand | ComposiMold |
Extended Product Information
FAQs
How many times can ComposiMold-LT be reused?
ComposiMold-LT is designed to be reused over 35 times, making it a very economical choice for mold making.
Is ComposiMold-LT safe for children?
Yes, it conforms to ASTM D4236 and contains no harmful chemicals, making it safe for use in art projects under adult supervision.
What is the best way to melt ComposiMold-LT?
The most convenient method is microwaving in short intervals, stirring between each, until fully liquid. A double boiler can also be used for more controlled heating.
Can I use ComposiMold-LT with food items?
No, ComposiMold-LT is intended for art and craft applications only and is not food-safe.
What temperature should I cast with?
While ComposiMold-LT is versatile, it is best to check the recommended temperature range for your specific casting material. Generally, it performs well with materials up to around 300°F (150°C), but testing is advised for higher temperatures.
How do I store my ComposiMold-LT molds?
Store your molds in a cool, dry place away from direct sunlight to prevent degradation and maintain their flexibility.
Can I mix different colors of ComposiMold?
While not explicitly stated for CMLT20, generally mixing different batches or colors of the same ComposiMold product should be possible, but test small amounts first if color consistency is critical.
Troubleshooting
ComposiMold-LT not melting evenly
Ensure consistent heating by stirring frequently during microwaving and using short, intermittent heating cycles. Avoid overheating.
Bubbles in the mold
Pour the melted ComposiMold-LT slowly and steadily to minimize air entrapment. Gently tap the container after pouring to release trapped air. Consider vacuum degassing if issues persist with complex originals.
Difficulty demolding the original object
Ensure the ComposiMold-LT is fully solidified. If the original object has undercuts, apply a mold release agent before pouring the ComposiMold-LT. Gently flexing the mold can also help.
Mold is sticky after cooling
This can sometimes occur if not fully cooled or if certain casting materials have a reaction. Ensure the mold is completely cool before handling. If it persists, a light dusting of cornstarch or talcum powder can reduce tackiness.
Reduced reuse cycles
Avoid extreme temperatures during melting and casting. Clean molds gently after use and store them properly to maintain material integrity.
Pros and Cons
Pros
- Highly reusable, reducing long-term costs.
- Safe and non-toxic, suitable for educational and home use.
- Easy to prepare using a microwave.
- Compatible with a broad spectrum of casting materials.
- Allows for detailed mold creation.
- Reduces material waste significantly.
Cons
- Requires melting, which necessitates careful handling and temperature control.
- Initial cost may be higher than some single-use mold materials.
- May not be suitable for very high-temperature casting materials without testing.
- Can be sticky when hot, requiring caution during the melting and pouring process.
- Learning curve for optimal melting and pouring techniques.
Setup, Compatibility & Care
Setup:
- Prepare your original object: Ensure the object you wish to mold is clean and free of debris.
- Melt ComposiMold-LT: Place the desired amount of ComposiMold-LT into a microwave-safe container. Microwave in short intervals (e.g., 30-60 seconds), stirring between intervals, until fully melted and liquid. Alternatively, use a double boiler setup.
- Create the mold: Place your original object into a mold box or container. Carefully pour the melted ComposiMold-LT over the object, ensuring it is fully submerged. Allow it to cool and solidify completely (typically 15-30 minutes).
- Demold: Once solid, carefully remove the original object from the ComposiMold-LT.
Compatibility:
ComposiMold-LT is compatible with a wide range of casting materials including:
- Plaster
- Cement
- Epoxy resins
- Polyurethane resins
- Wax
- Soap
- Low-melt metals (testing recommended)
Care:
- Cleaning Molds: After use, clean molds with mild soap and water. Ensure they are completely dry before storing.
- Storage: Store molds in a cool, dry place away from direct sunlight.
- Reusing ComposiMold-LT: Unused melted ComposiMold-LT can be re-melted and reused multiple times. Scraps can also be melted down and added to new batches.