Fast-curing, high-strength polyurethane casting resin for precise molds, models, and prototypes. Cures in just 15 minutes, low shrinkage, excellent detail. Ideal for professionals, engineers, and makers. Read more
Fast-curing, high-strength polyurethane casting resin for precise molds, models, and prototypes. Cures in just 15 minutes, low shrinkage, excellent detail. Ideal for professionals, engineers, and makers.
Size chart
Altropol Polyurethane Casting Resin D70 is a professional-grade, two-component PU casting resin that delivers exceptional results — fast. Whether you're casting a mold, replicating fine details, or building a prototype, D70 ensures high strength, low shrinkage, and crisp precision.
This polyurethane resin cures quickly (as fast as 15 minutes), can be poured up to 40 mm thick (with filler), and works with or without additives.Perfect for industrial use, creative projects, and advanced DIYers.
Ideal for:
Molds, models, and design prototypes
Industrial replicas and technical parts
Sculpture casting and art installations
Fine detail replication
Fast production and repair molds
Why choose Polyurethane Casting Resin D70?
✔ Fast curing – Demolding from 15 minutes ✔ High detail – Excellent flow for sharp edges and complex shapes ✔ Flexible use – Pour with or without filler depending on your needs ✔ Thick castings – Up to 40 mm per layer (with filler) ✔ Precise & stable – Low shrinkage for reliable results ✔ Strong & durable – Shore D 70–80 depending on formulation ✔ Works with silicone molds – Ideal for professional moldmakers ✔ Tested & proven – Popular in industrial and creative sectors
How to you use Altropol PU Casting Resin D70
Step 1 – Shake both components thoroughly to mix in any sediment Step 2 – Weigh parts A and B in a 1:1 ratio by weight Step 3 – (Optional) Mix filler into each component before combining Step 4 – Combine A and B and mix vigorously for 30 seconds Step 5 – Pour the mixture into the mold in a thin stream to avoid bubbles Step 6 – Let cure fully before demolding
Tip: For castings over 30 mm thick: pour in layers and allow each to gel before adding the next to prevent overheating.
Watch the video below to see how it works!
Technical Specifications
Without Filler
Characteristic
Value
Mixing ratio
A:B = 1:1
Processing time
2 minutes
De-molding time
15 minutes
Density
1.08 g/cm³
Shrinkage
0.2%
Glass temperature
60-70°C
Max. thickness per casting
4-30 mm
Hardness
Shore D 70
With Filler
Characteristic
Value
Mixing ratio
A:B:Filler = 1:1:3
Processing time
4 minutes
De-molding time
30-40 minutes
Density
1.6 g/cm³
Shrinkage
0.15%
Glass temperature
60-70°C
Max. thickness per casting
30-40 mm
Hardness
Shore D 80
The more filler, the less heat is generated and the thicker you can pour in one go.
Storage & Shelf Life
✔ Store between 6–28°C in a dry place. ✔ Process opened packages as quickly as possible. ✔ Shelf life : 6 months when stored properly.
Before using the product, shake or mix well to prevent sedimentation!
Safety & Regulations
This polyurethane casting resin contains diisocyanates. From August 2023, EU regulations require certified training for professional use.
Always wear gloves, goggles, and respiratory protection
Ensure proper ventilation
Avoid contact with skin or eyes
See safety data sheets for full H- and P-statements
Warning: Training is required for use of diisocyanates. please consult the official safety data sheets .
PLEASE NOTE: Since August 2023, polyurethane with a diisocyanate content of more than 0.1% may only be used in companies where employees have completed the required training courses.
Companies can register for an online training via THIS link.
The products are generally quite harmless to use, provided that the usual precautions are taken when processing chemical products. For example, neither component may come into contact with food or cutlery. Contact with the skin of one or both components must be avoided, as people with sensitive skin will react to this. For further information, see safety data sheets.
Further important safety information
H-Code hazard statements
H315 Causes skin irritation.
H317 May cause an allergic skin reaction.
H319 Causes serious eye irritation.
H332 Harmful if inhaled.
H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled.
H335 May cause respiratory irritation.
H351 Suspected of causing cancer.
H373 May cause damage to the lung and respiratory system through prolonged or repeated exposure.
H411 Toxic to aquatic life with long lasting effects.
EUH204 Contains Isocyanates. May produce an allergic reaction
P-Code precautions
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P264 Wash thoroughly after handling.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/ face protection/hearing protection.
P284 [In case of inadequate ventilation] wear respiratory protection.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes; remove contact lenses, if possible; continue rinsing.
P337+P313 If eye irritation persists: Get medical advice/attention.
P405 Store locked up.
P501 Dispose of contents/container in accordance with local/regional/national/ international regulations.
Whether you're creating precision molds, industrial prototypes, or detailed art pieces — Polyurethane Casting Resin D70 gives you the speed, strength, and reliability to bring your ideas to life. Order today and experience professional casting results at your fingertips.
Fast curing. High detail. Serious performance. Buy now!
Safety Information
Safety Pictograms
Safety Data Sheets (SDS)
Signal Word
H‑code
Hazard Statement
P‑codes
P‑statements
More information about H and P statements can be found at
UK HSE
and
ECHA.
Handleidingen
Geen handleidingen beschikbaar voor dit product.
Blogs
YouTube
Geen YouTube videos gekoppeld aan dit product.
Our story
Our story began with our father, the founder of Nedform BV. We— Roel, Rutger, and RobCollaris —are his sons and wanted to bring his passion and knowledge to the online world. That's how SAM (Silicones and More) was born—a creative space for everyone.
Whether you're a beginner, an expert, or an enthusiastic DIYer looking for the right tools, materials, and some guidance, you've come to the right place. We've worked with silicones, resins, and casting materials ourselves for years. That's why we not only deliver quality but also genuine support—based on experience.
Orders placed and paid for on weekdays before 4:00 PM are usually shipped the same day. Orders placed after 4:00 PM or on weekends are processed the next business day.
Netherlands: usually delivery within 1 working day Belgium and Germany: delivery within 1-2 working days Other countries: depending on destination and carrier
What is the return policy?
We offer a 30-day return policy as an added service. If you'd like to return an item or if there's something wrong with your order, please email us at info@siliconesandmore.com with your name and order number within 30 days of delivery. We'll help you quickly. The full terms and conditions can be found on our returns page.
How can I track my order?
Once your order has been processed and shipped, you'll receive a track and trace code by email, allowing you to easily track your package. Please note that it can sometimes take up to 24 hours after processing for the track and trace to be active.
I have a problem with my order, how can I reach you?
If you have any questions or run into any problems, please feel free to contact us via our contact page or email us at info@siliconesandmore.com . We'll be happy to help you quickly.
If you want an immediate answer, ask our chatbot. They have extensive knowledge of all our products and can often help you right away!
Can I also order for business purposes?
Yes, business orders are possible . Customers within the EU outside the Netherlands can order VAT-free with a valid EU VAT number (0 percent intra-Community supply).
Enter your VAT number on the shopping cart page , not at checkout.
Go to the shopping cart via the link below and enter your VAT number and email address, after which the VAT will be automatically removed.
Information sheet Polyurethane Casting System D70