Nicpro 140oz Silicone Mold Making Kit - Flexible 15A Platinum Rubber

In this review of the Nicpro 140oz Silicone Mold Making Kit the conclusion is straightforward: this kit is best for crafters who want a large, easy-to-use silicone supply for resin, soap, candle and medium 3D mold projects. The kit's single biggest advantage is the workable 1:1 mix ratio and low viscosity formula that largely self-degasses, making clean, detailed molds practical without a vacuum chamber. Beginners and experienced makers will both appreciate the included tools and the food grade, platinum-cured silicone that cures to a soft, flexible 15A shore hardness.

Key Features

• Complete kit: Includes 140oz (8.75 lb) silicone plus 15 wooden sticks, 10 gloves, ten 8oz graduated cups, two tablecloths and instructions so you can start immediately.
• Safe material: The silicone is food grade, translucent and platinum-cured, offering a non-toxic, odorless option suitable for candle and soap molds.
• Easy 1:1 mixing: The equal-part mix ratio by weight simplifies measuring and reduces mistakes for reliable batch preparation.
• Fast cure and working window: Roughly 30 minutes working time and a 3-5 hour cure at room temperature gives quick turnaround for most small to medium molds.
• Self degassing: Low viscosity helps trapped air rise and break without vacuum degassing, producing fewer bubbles in finished molds.
• Flexible finish: At 15A hardness the cured silicone is very elastic, which aids demolding detailed resin and soap pieces without damage.

Who It's For

This kit is aimed at hobbyists and small-studio makers who make resin art, cast candles, pour soap or build 1-piece and 2-piece 3D molds and want a large initial supply. The included mixing cups, gloves and sticks make it a good pick for beginners who prefer a ready-to-use set without sourcing extra tools.

Those who need very fast commercial throughput, extremely high heat resistance, or who routinely make very large, thick molds should consider alternative silicones tuned for industrial speed or different hardness ranges. Users who require guaranteed cure in cold shop conditions should allow extra time or control ambient temperature.

Pros & Cons

Pros

• Good value: large 140oz quantity and many accessories make it economical for repeated projects.
• Easy to use: 1:1 mix ratio and low viscosity reduce common mixing errors and bubble issues.
• Food grade and odorless: safe-feeling material suitable for candle and soap molds.
• Flexible cured rubber: 15A hardness helps demold delicate details without tearing.

Cons

• Cure variability: some users report longer or inconsistent cure times depending on mold size and room temperature.
• Durability concerns: a few customers noted mixed experiences with long-term durability on heavy-use molds.

Specifications

Kit weight	8.75 lb (140 oz)
Silicone type	Platinum-cured, food grade translucent silicone
Mix ratio	1:1 by weight
Shore hardness	15A
Working time	About 30 minutes at 23 C (73.4 F)
Cure time	Approximately 3-5 hours at room temperature (varies by size)
Included accessories	15 wooden sticks, 10 pair gloves, 10 8oz graduated cups, 2 tablecloths, instruction paper

Our Verdict

The Nicpro 140oz Silicone Mold Making Kit is a practical, cost-effective choice for hobbyists and small studios that need a generous supply of versatile, flexible silicone. Its 1:1 mixing, low viscosity and included tools reduce setup friction, and the platinum-cured, odorless formula suits soap and candle work; buyers should account for possible cure-time variability with larger or thicker molds.

Frequently Asked Questions

Can I color the silicone?
Yes, the translucent silicone can be mixed with mica powder or pigment to achieve custom colors before pouring.

Is vacuum degassing required?
No, the low viscosity is designed to self-degas if given enough time, so vacuum degassing is generally unnecessary.

How long until molds fully cure?
Typical cure is 3-5 hours at about 23 C (73.4 F), but larger or thicker molds may take longer and room temperature affects final cure time.