PRODUCTS

LR-2257 Liquid Epoxy Resin



General

Razeen® LR 2257 is a low viscosity epoxy resin based on Bisphenol A modified with
aromatic glycidyl ether.

 

Applications

Razeen® LR 2257 can be cured with polyamines, polyamidoamines or their adducts for solvent-free coatings, self-leveling and mortar floors, concrete injections, structural adhesives, trowelling compounds and impregnation systems. In combination with unmodified epoxy resins, like Razeen® LR 1150 and Razeen® LR 1100 the viscosity of the end formulation can be reduced.


Properties

Due to the low viscosity and the full crystallization resistance Razeen® LR 2257 is a
most suitable epoxy resin in formulating solvent free systems yielding,

  • Very good processing properties
  • Good mechanical performances
  • Good surface penetration
  • Medium chemical resistance / good acid and solvent resistance
LR-2257


Specific Key Data

Property Value Test method
Appearance Clear, no contamination JCTM-001
Color, APHA 100 max ASTM D-1209
Epoxy value 5.20 – 5.50 eq/Kg ASTM D-1652
Weight per epoxide 180 – 192g/eq ASTM D-1652
Viscosity @ 25oC (77oF)* 500 – 700 mPa.s ISO 12058-1
Hydrolysable Chlorine 400 ppm max JCTM 195
Specific key data are individually checked throughout, guaranteed and included in certificate of analysis.

 

 

Typical Key Data

Density at 25oC (77°F) 1.15 g/cm3 ISO 1675
Flash point ≥ 138oC ISO 2719

Typical key data are spot-checked; the values are typical for the product and are indicated for
information only. The values are not included in certificate of analysis.

As-supplied form

 Liquid

Odor

 None

Shelf life (at storage temperature between 2-40°C)
(see expiry date on original container))

 6 years

Hazardous decomposition products
(when disposed of in fire)

 Carbon monoxide, carbon dioxide,
Nitrogen oxides and other toxic
Gases and vapours

Disposal

 Regular procedures approved by
Local authorities

 

Packaging & Storage

Razeen® LR 2257 is supplied in bulk and in 220 kg. steel drums. This product should be
stored in a dry place, preferably in the sealed original container; at temperatures
between 2°C and 40°C (temperatures should never be allowed to drop below 0°C). The
product should not be stored exposed to direct sunlight.

 

Tariff Number

39073000

 

Handling/Safety Precautions

Mandatory and recommended industrial hygiene procedures should be followed
whenever our products are being handled and processed. For additional information
please consult the corresponding product safety data sheets.

Note

Razeen® is a registered trademark of JANA or an affiliate thereof.

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