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Safety Information

755885

Sigma-Aldrich

Urethane acrylate methacrylate resin

Synonym(s):

MAU, U-835

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About This Item

UNSPSC Code:
12162002
NACRES:
NA.23

form

liquid

refractive index

n20/D 1.487

viscosity

3,000 cP(25 °C)

density

0.995 g/mL at 25 °C

storage temp.

2-8°C

General description

Urethane acrylate methacrylate resin (UDMA) is formed by reacting 2,4,4-trimethylhexamethylene diisocyanate and 2-hydroxyethyl methacrylate (HEMA). It is mainly used as a dental resin with a higher water uptake than that of bisphenol A-glycidyl methacrylate (Bis-GMA).

Application

UDMA may be combined with triethylene glycol dimethacrylate (TEGDMA) as a resin to develop composite blocks, which can be used for dental computer aided design applications. It may also be used to decrease the water sorption and increase the mechanical strength of the dental composites.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

>399.2 °F

Flash Point(C)

> 204 °C

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

755885-VAR:
755885-BULK:
755885-25G:

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Certificates of Analysis (COA)

Lot/Batch Number
MKCM3835
MKCH6224
MKCD8648
MKBX4622V
MKBS9400V

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Dipentaerythritol penta-/hexa-acrylate contains ≤650 ppm MEHQ as inhibitor

Sigma-Aldrich

407283

Dipentaerythritol penta-/hexa-acrylate

Urethane ≥99%

Sigma-Aldrich

U2500

Urethane

Synthesis and evaluation of modified urethane dimethacrylate resins with reduced water sorption and solubility.
Kerby RE, et al.
Dental Materials : Official Publication of the Academy of Dental Materials, 25(3), 302-313 (2009)
Properties of experimental urethane dimethacrylate-based dental resin composite blocks obtained via thermo-polymerization under high pressure.
Nguyen J, et al.
Dental Materials : Official Publication of the Academy of Dental Materials, 29(5), 535-541 (2013)
Water ageing of urethane dimethacrylate networks.
Pomes B, et al.
Polymer Degradation and Stability, 29(5), 535-541 (2018)

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