Key Features and Benefits

BC 2533 is an amine blocked di- nonylnaphthalene di-sulphonic acid solution in alcoholic solvents.

Suggested Applications

Curing of saturated polyester with HMMM resins.

Compatibility

HMMM resin:   Good.
Epoxy resin (E.E.W. 450 – 550):   Good.

Specifications

pH:   6.5 – 7.5.
Clarity:   Clear.
Colour (Gardner):   7 max.
Solid Content:   33 ± 2%  

Solubility

n-Butanol:   Good.
Isopropyl alcohol:   Good.
Ester, Ketone:   Good.

Curing Schedules

Suitable for stoving finishes with stoving schedules ranging from 160°C for 20 minutes to 280°C for 50 – 70 seconds.

Recommendations for use

To be used at 4 to 10% on mass of melamine formaldehyde resin solids.

This information provided in this Data Sheet is based on our own research and is reliable. However, it is only intended for general guidance of users and the company does not accept any responsibility for the results obtained with their products.
This supersedes all earlier data sheets.

© 2025 Nycil Limited | All Rights Reserved.