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Ordered and paid on a working day: usually ships the same day
Delivery to Netherlands: usually within 1 working day
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Premium Alginate for Professional Applications
Alginate 3D Gel is a fast-curing, skin-friendly impression material based on sodium alginate, specially developed for creating detailed 3D impressions of body parts. With a processing time of 3-4 minutes and complete hardening within 5 minutes, this alginate delivers razor-sharp reproductions of skin texture, fingerprints, and facial contours – ideal for body casting, SFX work, and medical training models.
Key Benefits
- Fast curing: Fully cured within 5 minutes, processing time 3-4 minutes depending on mixing ratio
- Razor-sharp detail: Perfectly captures skin lines, fingerprints, and textures for professional results
- Skin-friendly and safe: Dermatologically tested, suitable for all ages including babies, no irritants
- Biodegradable: Environmentally friendly seaweed-based material, easy to remove with water
- Visual color indicator: Pink when mixed, white when fully cured – no more guesswork
- Pleasant strawberry scent: Pleasant working environment, especially for facial impressions and long sessions
Typical Applications
- Bodycasting and lifecasting: Hand, foot and belly prints for memories, pregnancy registration and art projects
- SFX and special effects: Face masks, prosthetics and make-up applications for film, theatre and cosplay
- Medical sector: Training models, orthodontic impressions and prosthetic fitting in podiatry and orthopedics
- Art education and workshops: Sculpture projects, design and creative sessions in schools and studios
- Tattoo Industry: Practice Sleeves for Realistic Skin Reproductions and Portfolio Development
- Erotic applications: Safe, discreet prints for personalized replicas
Technical Features
Alginate 3D Gel is supplied as a powder and mixed with water in a 1:4 ratio (for pouring) or 1:3 (for troweling). At 1:4, the pot life is 3.5-4 minutes, with demolding after 5.5 minutes. For troweling (1:3), the pot life is reduced to 2.5-3 minutes. Use cold water for a longer working time and warm water for accelerated curing. The material is single-use and not reusable.
SAM supplies this alginate under its own brand Silicones and More as a reliable choice for professionals and hobbyists who value consistent quality and technical support.
Professional Support
Do you have questions about mixing ratios, processing techniques, or material selection for your specific project? Our technical team is ready to provide tailored advice for body casting, SFX applications, and industrial projects.
Instructions for use
Step 1: Measure the correct amount of powder and water according to the table below
Step 2: Mix the powder with cold water in a ratio of 1:4 (pouring) or 1:3 (spattering)
Step 3: Stir vigorously until a smooth, lump-free mass is formed
Step 4: Immerse the body part in the gel and hold still
Step 5: Wait ±5 minutes until the gel is completely white and hardens.
Step 6: Carefully remove the body part from the mold
Tip: Use cold water for a longer processing time and warm water for faster curing.
Required Quantities
| Hand type | Cup size | Alginate | Water | Porcelain plaster | Water for plaster |
|---|---|---|---|---|---|
| Baby hand (0-1 years) | 550 ml | 96 gr | 384 gr | 150 gr | 35 gr |
| Children's hand (2-10 years) | 1150 ml | 168 gr | 672 gr | 300 gr | 75 gr |
| Woman's hand/child >10 | 1150 ml | 204 gr | 816 gr | 600 gr | 150 gr |
| Male hand | 1900 ml | 288 gr | 1152 gr | 800 gr | 200 gr |
NOTE: Not every hand position is suitable! Always allow air bubbles to escape.

Important Tips
- Use cold water to extend the working time
- Ensure a smooth mixture by stirring well
- Prevent air bubbles by pouring slowly
- Pour immediately after mixing – Alginate hardens quickly!
- Sealing recommended if the cast is placed outside
Shelf life
✔ Shelf life: 1-2 years in closed packaging, store in a cool, dry place
Product Properties
- ColorWhiteColor of the finished product
- Mix ratio1:4 (e.g. 500 grams of Alginate 3D gel to 2000 grams of water).Mixing ratio A : B
- Tensile strength0.6MPaMaximum tensile force before breaking
- Pot life3minutesWorking time after mixing
- Cure time5minutesTime until full cure
Application
- Use caseLife casting of body partsIntended use
Manuals
- Guide: Casting a hand or body part with 3D-Gel (Alginate) View manual
- Guide: Making an ultra realistic silicone hand View manual
- Guide: making a coloured silicone hand View manual
- Guide: making a glow in the dark silicone hand View manual
Blogs
Want to see how enthusiastic #EnzoKnol is about the SAM Bodycasting kit?
#knolpower WE MAKE A PEACE OF OUR OWN HAND! DIY #2659 Read more…
A first baby hand made of porcelain plaster
A first baby hand made of porcelain plaster from a 3D alginate mold. Read more…
Making bodycastings their way
The "De stormpjes" make bodycastings their own unique way using SAM bodicasting materials! Read more…
Easily create a tattoo practice skin - From your own arm!
Want to learn how to tattoo yourself? Did you know that silicone is very similar to human skin when it comes to tattooing? Easily make a silicone cast of your arm to practice realistically. Read more…
YouTube
Frequently asked questions
What is the delivery time for my order?
Orders placed and paid on working days are in most cases shipped the same day. Weekend orders are processed on the next working day.
Indicative delivery times: Netherlands usually within 1 working day, Belgium and Germany typically 1–2 working days, other countries depending on destination and carrier. These are guidelines, not guarantees: peak periods, public holidays or carrier delays can have an effect.
What is the return policy?
You have 30 days to return after receipt. Email info@siliconesandmore.com within 30 days of delivery with your name and order number. The full conditions are in our return policy.
How can I track my order?
As soon as your order has shipped, you'll receive a track & trace code by email. It can take up to 24 hours before the code is active.
I have a problem with my order – how do I reach you?
Contact us via our contact page or email info@siliconesandmore.com. We're happy to help you quickly.
Can I order as a business?
Yes. Apply for a business account; we review your application within 3 working days. After that you order while logged in and pay on invoice, with payment terms of 14 days after delivery.
EU businesses outside the Netherlands with a valid VAT number order with VAT reverse-charged (0%, intra-community supply). The VAT number is stored in your business account; it cannot be added to an order after it has been placed.