NACURE® DNNSA Catalysts - King Industries, Inc.
NACURE® DNNSA Catalysts - King Industries, Inc.
NACURE® DNNSA Catalysts - King Industries, Inc.
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<strong>DNNSA</strong> Catalyst Use Levels<br />
As with any catalyst, <strong>DNNSA</strong> catalysts use levels are dependent on a variety of factors and<br />
conditions including cure time and temperature, whether the catalyst is blocked or unblocked,<br />
substrate and film thickness.<br />
The following chart, provides good starting point use levels by type based on a 30 minute cure<br />
schedule for a typical binder resin/HMMM ratio of 75/25 at various cure temperatures. The<br />
percentage of catalyst shown is as supplied based on total resin solids.<br />
Do not over catalyze. Using too much catalyst can be a costly mistake and one that can cause<br />
film properties to suffer significantly.<br />
A ladder study of catalyst levels should be conducted to optimize performance.<br />
Starting Point <strong>DNNSA</strong> Use Levels<br />
3.5<br />
Catalyst Use Level, % by Weight<br />
3<br />
2.5<br />
2<br />
1.5<br />
1<br />
0.5<br />
0<br />
Blocked <strong>DNNSA</strong> <strong>Catalysts</strong><br />
NACURE 1051<br />
1 2 3 4<br />
125°C 150°C 175°C 200°C<br />
Temperature<br />
N-1051 Blocked <strong>DNNSA</strong><br />
7<br />
KING <strong>DNNSA</strong> 2013