Phrozen Engineering Elastomer EL400 Resin
- Excellent resilience and reboundability.
- Bend over 60,000 times with 391% stretch.
- Durable for long-term & continuous testing.
- Suitable for rubber-like and lattices prototype.
- 40% Bayshore resilience.
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Shipping & Tariff
- Please expect a standard lead time of approximately 1 week.
- Currently, the Phrozen US Store only ships to the mainland United States. For non-contiguous states and other U.S. territories, please purchase through our Global Store.
- No refunds will be provided if a customer refuses to collect or returns their product(s) due to related costs.
- Customers are responsible for customs clearance in all countries.
- For more information, please refer to our Shipping page.
Return & Warranty
- According to the Consumer Protection Act, you have the option to request a refund within a period of 13 days. However, please note that the refund does not cover the shipping fees and tax/VAT charges. To initiate the refund process, you need to submit a request to the Phrozen Support Center within this 13-day timeframe. It is important to ensure that the product is returned in its original condition, and the entire batch order must be sent back. For more details, please refer to our Refund Policy page.
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All products purchased from the official website of Phrozen are warranted under different terms. Phrozen offers a one-year warranty for all our products except consumables and components; this includes the LCD screen and the FEP film. LCD screens for the Sonic Mighty 8K, Sonic Mini 8K, Sonic Mega 8K, Sonic Mini 4K, and Sonic 4K are covered under a 3-month warranty. For more details, please refer to our Warranty page.
*Kind reminder: We would suggest pairing our printers with Phrozen's resins to prevent surface paint damage. If a problem occurs, please feel free to contact our support team.
Precautions
Precautions
- Make sure to preserve resin at room temperature. Store in dark and ventilated conditions.
- After printing, please keep used resins in a closed & opaque bottle.
- Avoid mixing used resin with new resin.
- Keep resin away from kids and away from direct sunlight exposure.
- Wear gloves and masks when using resins.
- If this chemical contacts the skin or eye, wash with plenty of water.DO NOT dump resin.
- Please cure it and treat it as general plastic garbage.
Resources
Resources


Ultra-High Elasticity
With an ultra-high 391% elongation at break, EL400 combines rubber-like elasticity and hardness, offering excellent flexibility and stability to realize your innovative designs.

Excellent Resilience and Reboundability
The EL400’s 50–55% Bayshore rebound rate* makes returning to its original shape after deformation seamless. Ideal for durable prototypes for long-term testing and repeated use.

Incredibly Tear-Resistant
In the Ross bending fatigue test at 23℃,models printed with EL400 exhibit suoerior reliability,withstanding over 60,000 cycles with a tear strength of 39.1 kN/m.