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755885

Urethane acrylate methacrylate resin

Synonim(y):

MAU, U-835

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Rozmiar/SKUDostępnośćCena netto
25 g
Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności
706,00 zł

Informacje o tej pozycji

NACRES:
NA.23
UNSPSC Code:
12162002

706,00 zł


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Quality Segment

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.
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Ta pozycja
779342
description

-

description

≥97.0% (GC)

density

0.995 g/mL at 25 °C

density

1.075 g/mL at 20 °C, 1.042 g/mL at 25 °C (lit.)

storage temp.

2-8°C

storage temp.

-

viscosity

3,000 cP(25 °C)

viscosity

-

form

liquid

form

liquid

refractive index

n20/D 1.487

refractive index

n20/D 1.449 (lit.), n20/D 1.450

Quality Level

100

Quality Level

200


Piktogramy

Exclamation mark

Słowo ostrzegawcze

Warning

Hazard Classifications

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

Narządy docelowe

Respiratory system

Klasa składowania

10 - Combustible liquids

Co się dzieje?

WGK 3

Temperatura zapłonu (°F)

>399.2 °F

Temperatura zapłonu (°C)

> 204 °C



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Certyfikaty analizy (CoA)

Lot/Batch Number

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Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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