Matting agent for Polyester/TGIC powder coatings Jietonda® SA2068 is a matting hardener with TGIC as co-reactant,
which can provide low-gloss of ca.10% (60°), good impact and
exceptional flow properties for exterior durable PES/TGIC powder
coatings. It may also be used in both epoxy and epoxy/polyester
hybrid powder coating with low-gloss finish.
1. Typical properties Appearance | Very fine pale yellow powder | [visual] | Chemical equivalent weight (g/eq) | 92 | [calc.] |
Herein described to be typical properties and do not constitute
specification limits. 2. Characteristics ● Can provides low gloss of ca.10% (60°), exceptional flow and
good mechanical properties such as direct impact for PES/TGIC based
exterior durable powder coatings. ● Curing @ 200℃(metal temperature) are required for both better
flow and impact properties. 3. Use method & levels ● Premix SA2068 with other components of the formula before
extrusion. ● The use level is 1-5% by total weight of formulation, depends
on the gloss required. ● Ca. 1.1-1.2 parts of TGIC per weight part of SA2068 based on
their chemical equivalent weights. Varying their total
concentrations of in the formulation can control different gloss
levels of coating when both ratios were retained at above
fixedness. 4. Package & Storage ● Packaging with PE lined Kraft paper bags. Net weight 25kg per
bag. ● Store in temperature between 2-32℃ or cool dry place. Keep away
from heat and fire. ● Based on our experience the shelf life of SA2068 under above
conditions is at least 2 years. 5. Advisement ● When formulating SA2068, the gloss of coating will be
determined by its concentration and the selected polyester resins.
It is important to select matched resins. ● The powder coating formulated by SA2068 have a bit yellowing
tendency and poor wet-thermal resistance. |