Silicone Mold Making Kit 5lb Super Elastic Silicone - Fast Cure

In this review of the Silicone Mold Making Kit 5lb, the bottom line is simple: crafters who need a fast-curing, highly elastic molding silicone will find strong value here. The kit's biggest selling point is its quick 1:1 mixing and 5-7 hour room-temperature cure, which speeds project turnaround while still producing detailed, precise molds. The reviewer found it especially useful for small to medium resin and soap projects where a smooth, bubble-free surface and long-lasting yellowing resistance matter.

Key Features

• Quick curing: The 1:1 weight mix ratio cures at room temperature in about 5-7 hours, so molds are ready the same day for many projects.
• Precise replication: The formulation captures fine detail and complex shapes, making it suitable for both flat patterns and 3D originals.
• Exceptional elasticity: After curing the silicone is very soft and stretchy, allowing molds to be used repeatedly without tearing.
• Self-deaeration: Low viscosity helps bubbles dissipate within an hour, often avoiding the need for a vacuum chamber for small pours.
• Yellowing resistance: The material maintains appearance and resists yellowing for many uses, extending the life of finished molds.

Who It's For

This kit is best for hobbyists and small-batch makers making resin jewelry, coaster molds, soap and candle molds, or small decorative casts who value a fast cure and accurate detail. The easy 1:1 mixing is friendly to beginners and the elasticity benefits those removing undercuts or intricate pieces.

Professional moldmakers with large-volume requirements or those who need very long working times might prefer a slower-curing or flowier industrial silicone. Also, buyers expecting very large single pours should check volume needs carefully since this kit is positioned for small to medium projects.

Pros & Cons

Pros

• Fast 1:1 cure at room temperature lets makers finish molds quickly.
• Soft, highly elastic cured rubber that stretches and stands up to repeated use.
• Good self-deaeration and a smooth, low-roughness surface when cured.
• Improved yellowing resistance yields longer-lasting, cleaner-looking molds.

Cons

• Some users report occasional curing issues, so ambient temperature and accurate mixing matter.
• Size may be small for those who expected very large mold volumes in a single kit.

Specifications

Product type	Liquid silicone mold making kit
Weight	5 lb (80 oz)
Mix ratio	1:1 by weight
Cure time	About 5-7 hours at room temperature (above 18 C)
Elasticity	Soft, high elasticity suitable for repeated use
Surface finish	Bubble-free, smooth jade-like surface after cure
Common uses	Resin molds, soap, candles, plaster, clay, jewelry

Our Verdict

The Silicone Mold Making Kit 5lb offers a well-balanced mix of speed, detail fidelity, and durability that makes it a smart choice for hobbyists and small-batch makers. Its quick 1:1 cure and self-deaeration simplify workflow, and the soft, elastic cured rubber holds up well over many uses, delivering good value for typical craft applications.

Frequently Asked Questions

How long does it take to cure?
The silicone typically cures in about 5-7 hours at room temperature above 18 C, with warmer temps speeding cure time.

Does it need a vacuum chamber to remove bubbles?
For most small pours the low viscosity and self-deaeration remove bubbles within an hour, so a vacuum is not usually required.

What can I cast with these molds?
It is suitable for resin, soap, candles, plaster, clay and small to medium decorative casts where fine detail is needed.