Matting hardener is a type of additive used in TGIC (Triglycidyl Isocyanurate) powder coatings to reduce the gloss level
and create a matte or satin finish. It is typically added to the powder coating formulation during the manufacturing
process.
Matting hardeners work by interfering with the light reflection on the surface of the coating, resulting in a lower gloss level.
This is achieved by incorporating fine particles or additives that scatter the light, preventing it from reflecting directly off the
surface.
The specific type and amount of matting hardener used will depend on the desired level of gloss reduction. Different matting
agents can be used to achieve different levels of matting, from semi-gloss to full matte finishes.
It is important to carefully select the matting hardener to ensure compatibility with the TGIC powder coating formulation and to
achieve the desired performance and appearance.
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.
Matting Agent for Polyester/TGIC powder coatings
Characteristics
1.It 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.
2.Curing @ 200℃(metal temperature) are required for both better flow and impact properties.
Use method & levels
1. TC-70 with other components of the formula before extrusion.
2. The use level is 1-5% by total weight of formulation, depends on the gloss required.
3. Ca. 1.1-1.2 parts of TGIC per weight part of TC-70 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.
Package & Storage
1. Packaging with PE lined Kraft paper bags. Net weight 25kg per bag.
2. Store in temperature between 2-32℃ or cool dry place. Keep away from heat and fire.
3. Based on our experience the shelf life of TC-70 under above conditions is at least 2 years.
4. Advisement
● When formulating TC-70, 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 TC-70 have a bit yellowing tendency and poor wet-thermal resistance.
Anticorrosion Pigments, Inkjet Receptive Coating, Matting Agent