The Rise of Aromatherapy Plaster Stones

Aroma diffuser stones (also called gypsum fragrance stones) are one of the fastest growing categories in home fragrance and handmade crafts. Made from porous plaster that absorbs essential oils and releases fragrance slowly and naturally, they are a flameless, eco-friendly and beautiful alternative to candles, reed diffusers and synthetic air fresheners.

For handmade aroma stone businesses, the right silicone mold makes all the difference. Cheap rigid molds produce rough, chipped stones with blurry details. Our food-grade silicone molds are specially engineered for plaster casting — they capture every fine detail, release cleanly every time, and last for hundreds of casting cycles.

Popular Mold Design Collections

We offer over 150 plaster diffuser stone mold designs, updated regularly with the latest home fragrance and decor trends. All molds are made from premium platinum-cured silicone, safe for gypsum, wax and resin crafting.

Key Advantages of Our Plaster Molds

✅ Ultra-Fine Detail Reproduction

Our high-precision mold making captures every delicate line, petal edge and texture pattern. Your finished plaster stones will come out with crisp, clean relief details that look professionally carved — no blurry edges, no fuzzy patterns. This is what makes handmade aroma stones look premium and worth higher prices.

✅ Effortless Clean Demolding

Made with soft, flexible platinum silicone with a naturally glossy inner surface, our molds release plaster stones smoothly without sticking, chipping or cracking. No need for release agents or grease in most cases. Simply flex the mold and the stone pops out intact, saving you time and reducing product waste.

✅ Gypsum-Resistant & Durable

Ordinary silicone can degrade and discolor from repeated contact with gypsum plaster. Our special formula silicone is alkali-resistant and engineered for plaster work. Each mold can be reused for hundreds of casting cycles while maintaining detail and shape. Thick 3-4mm walls prevent bulging and warping.

✅ Food Grade & Multi-Use

100% food grade platinum silicone, BPA-free and odorless. While designed for plaster aroma stones, these molds also work perfectly for candle making, soap, resin crafts, chocolate and baking. One mold, multiple uses — great value for small craft businesses.

✅ Consistent Size & Shape

Precision engineering means every cavity is identical, so every stone you make is the same size and weight. This is essential for product listings, packaging, pricing and professional brand presentation. No more uneven, misshapen pieces.

Where You Can Use Aroma Stones

How to Make Plaster Aroma Stones

Making beautiful diffuser stones is simple with our silicone molds. Follow these steps for perfect results every time:

Wholesale & Custom Solutions for Businesses

Whether you run a small handmade aroma stone business, a craft supply shop or a home fragrance brand, we have the right solution for you.

Bulk Wholesale

Over 150 stock designs available for immediate shipment. Tiered volume pricing — the more you order, the lower the unit price. Stock items ship within 48 hours worldwide via DHL, UPS, FedEx or sea freight.

Custom Mold Design

Want your own exclusive aroma stone shape or branded logo mold? We develop custom silicone plaster molds from your design, logo, sketch or 3D file. Low minimum order quantities, fast turnaround and exclusive design protection. Perfect for building your signature product line.

• Logo embossed molds — add your brand name or logo to every stone
• Custom shape development — unique 3D designs exclusive to your brand
• Fast turnaround — 3D design proof in 2-3 days, sample mold in 5-7 days
• Low MOQ — custom molds start from just 1 piece for prototyping
• Full confidentiality — your design is never sold or shown to others

Contact Us

Company: Huizhou Renshan Silicone Products Co., Ltd.

Address: Zengchao Group, Xintang Village, Qiuchang, Huiyang District, Huizhou City, Guangdong Province, China

Business: Silicone plaster diffuser molds, aroma stone molds, custom OEM/ODM, wholesale, import & export

Main Markets: North America, Europe, Middle East, Southeast Asia, Australia