If you are looking for a reliable alternative to Sartomer® CN1970 that does not compromise on performance, SINOMER® UVU62001SP-3D is worth a close look. This aliphatic polyurethane acrylate oligomer combines toughness, flexibility, and low shrinkage – properties that make it suitable for everything from industrial coatings to precision 3D printing.
Most UV‑curable oligomers force you to choose between hardness and flexibility. This one does not. SINOMER® UVU62001SP-3D is engineered to deliver:
High tensile strength and tear resistance – ideal for parts that undergo mechanical stress.
Excellent flexibility – the film stays elastic even after full cure.
Low shrinkage – maintains dimensional accuracy, critical for dental models and 3D printed parts.
Good adhesion to metals, wood, plastics, and even natural or artificial nails.
Low yellowing – thanks to its aliphatic backbone, it stays clear and color‑stable over time.
Moderate viscosity – easy to formulate into inks, coatings, and photopolymer resins.
Because it is a 100% solids oligomer (no solvents), it fits perfectly into environmentally friendly UV and LED curing processes.
The product’s versatility comes from its balanced property profile. Here are the main application fields where SINOMER® UVU62001SP-3D has proven its value.
For dental labs and device manufacturers, precision and biocompatibility are non‑negotiable. This oligomer is used in photopolymer resins for SLA and DLP printers to produce:
Dental models with fine detail and low warpage
Surgical guides that require toughness and edge strength
Temporary try‑in restorations that need good aesthetics and wear resistance
Low shrinkage ensures that printed parts match the digital design. The low yellowing property also helps maintain a natural tooth‑like appearance.
Beyond dentistry, the same low‑shrinkage, high‑toughness profile makes it a solid base resin for functional prototyping, jigs and fixtures, and end‑use parts that must withstand repeated handling or light impact. It blends well with other monomers and photoinitiators to fine‑tune viscosity and cure speed.
When an adhesive needs both bond strength and flexibility, SINOMER® UVU62001SP-3D is a good candidate. It works well in:
Laminating adhesives for flexible packaging
Electronic assembly where vibration damping is needed
Structural bonding of dissimilar materials (metal to plastic, etc.)
The resulting adhesive layer resists cracking under stress and does not turn brittle over time.
For metal substrates – from industrial equipment to decorative items – this oligomer provides:
Excellent abrasion resistance (tested by RCA wear)
Toughness against scratches and impact
Low yellowing even after prolonged UV exposure
It can be used as a primary resin or as a modifier to upgrade the flexibility of harder, more brittle systems.
Wood topcoats and sealers benefit from the oligomer’s adhesion and weatherability. It forms a clear, flexible film that moves with the wood substrate, reducing the risk of cracking from humidity or temperature changes. Outdoor wood applications also profit from its UV stability.
In the cosmetic UV gel market, adhesion to natural and artificial nails is a common challenge. SINOMER® UVU62001SP-3D offers:
Strong adhesion without harsh solvents
Flexibility – the cured gel does not chip or peel easily
Clarity and non‑yellowing – important for clear topcoats and light‑colored gels
As an encapsulant or conformal coating, this oligomer protects sensitive electronics from moisture, dust, and mechanical stress. It can also be used in composite matrices where a balance of stiffness and impact resistance is required.
Property | Typical Value |
Chemical type | Aliphatic nonpolar urethane methacrylate |
Appearance | Slightly yellow, transparent viscous liquid |
Color (Pt-Co) | ≤ 100 |
Viscosity @ 25°C | 5,500 – 9,500 mPa·s |
Acid Value | ≤ 2.0 mg KOH/g |
Functionality | 2 |
Tg | 50–58 °C |
Tensile Strength | 22–28 MPa |
Elongation at Break | 65–75 % |
Young's Modulus | 400–450 MPa |
Yellowing tendency | Very low |
Substrate adhesion | Metals, wood, plastics, nails |
Recommended curing | UV or LED |
For full specifications (exact viscosity, tensile strength, elongation, etc.), please request the official TDS.
Packaging options: 20 kg or 200 kg drums
Storage conditions: Keep in a dry, clean, well‑ventilated warehouse. Avoid direct light and heat. Protect from leakage, rain, and direct sunlight during transport.
When stored properly, the product remains stable for at least 12 months.
If you are currently using CN1970 or a similar aliphatic urethane acrylate, switching to SINOMER® UVU62001SP-3D gives you:
Comparable or better mechanical properties (toughness + flexibility)
Lower shrinkage for higher precision parts
Excellent adhesion across multiple substrates
A cost‑effective alternative without sacrificing quality
It has already been validated as a drop‑in replacement in many industrial formulations – from dental 3D printing resins to metal and wood coatings.
Samples are available for qualified customers. Contact our technical team to discuss your specific application and receive a sample tailored to your process.
