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Introduction & Specs
Cas No. 5285-60-9
Chemical Name 4,4′-Methylenebis(N-sec-butylaniline)
Molecular Formula C21H30N2
Molecular weight 310.476 g/mol
Melting Point 143.5℃
Flash Point 272.3±18.6 ºC
Introduction MDBA’s structure consists of two N-sec-butylaniline groups linked by a methylene bridge, which contributes to its unique chemical behavior and functionality.
Application MBDA can be applied in rigid and flexible foams, coatings, adhesives, sealants, and elastomers. It can also be applied in spray polyurea, and a range of metal and concrete repair compounds.

One of the primary applications is in the manufacturing of high-performance adhesives and coatings. These formulations benefit from the compound’s capability to enhance adhesion strength and durability, particularly in demanding environments where exposure to moisture, heat, and chemicals is a concern. The use of MDBA in coating formulations improves resistance to abrasion, impact, and chemical exposure, thereby extending the lifespan of coated surfaces.

MDBA is also utilized in the production of composite materials. When used as a curing agent in epoxy resins, it facilitates the formation of highly cross-linked networks that provide excellent structural integrity.

Typical use levels are 1-5% of polyol.

Sales Specification

ITEMS SPECIFICATION TYPICAL COA
Appearance Light yellow to dark amber liquid Conform
AHEW 153-161 Conform
Purity 99.0%min 99.50%
Color 6-13, Lron Cobalt Colorimetry 8
MDA 0.03% max Conform
Moisture 0.05% max 0.03%
Packing Available in 200KS/Drum, bag, etc.
Storage Store away from fire, heat, and light. Store in original container protected from direct sunlight in a dry, cool and well-ventilated area, away from incompatible materials and food and drink. Once opened, use immediately if possible. Do not allow prolonged contact with air after opening to avoid affecting product quality. Store and transport as flammable chemicals and corrosives.
Shelf Life 12 months from production date.

 

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