A Matt Hardener for a urethane powder coating system is a type of additive that is used to create a matte or low-gloss finish
on the coated surface. It is typically mixed with the urethane powder coating material before it is applied to the substrate.
The matt hardener works by reducing the glossiness of the coating, resulting in a more muted or satin-like appearance. This
can be desirable for certain applications where a glossy finish is not desired, such as in automotive or industrial coatings.
When selecting a matt hardener for a urethane powder coating system, it is important to choose one that is compatible with
the specific powder coating material being used. Different hardeners may have different properties and require specific curing
conditions, so it is important to follow the manufacturer's instructions for proper use.
Overall, a matt hardener for a urethane powder coating system can be a useful tool for achieving a desired finish on coated
surfaces.
PHYSICAL PROPERTIES
· Specific gravity : 1.2 ~ 1.8g/cm3 up to colors
· Particle size distribution: 100% less than 100 microns (depending on the specific indicators art effects may be, according to
the special requirements of painting adjusted)
· Level of liquidity: 24 ~ 27 mm
CURING CONDITIONS
180 °C ~ 200 °C (work piece temperature), 10-15 minutes
AVERAGE COVERAGE
8-12 square meters / kg, thickness 60 microns (100% of the powder coating utilization rate)
PACKING
Outside carton lined with two layers of polyethylene bags, each containing 20 kg net weight.
STORAGE AND TRANSPORT
Stored in less than 30 °C, ventilated, dry, clean room, not near the fire source, heating, avoid direct sunlight, the product in
the transport should be to prevent rain, sun, prolonged sun exposure. Storage products in line with the above conditions, since
the date of production, effective storage period is 6 months. Over the storage period may be re-tested and the results were
consistent with, can still be used.
HEALTH AND SAFETY
Coating powder is a non-toxic products, but should be avoided in the course of inhalation of dust. Proposed operators wear
appropriate dust mask, glasses. If possible, try to avoid long-term skin contact with powder coating.
| Mechanical property |
| Testing items | Inspecting index |
| Impact strength | >50kg/cm |
| Bending resistance | Pass 2-5 millimeters |
| Adhesion CHECKED TEST | Pass100/100, passes 0 levels |
| Cupdrawing:Erichsen, ISO1520 | Pass 3-7 millimeters |
| Pencil hardness | Pass H-2H |
| Chemical resistance and weather resistance |
| Salt spray test | The cross section of corrosion less than 2MM |
| Hot and damp resistance test | Without air bubbles, loses the light slightly |
| Acid resistance | Without air bubbles, the surface without damage |
| Alkali resistance | Without air bubbles, the surface without damage |
| Heat resistance | The color change is lower than E=1.5 |
| Solvent resistance | Without air bubbles, the surface without damage |
| Uvioresistant | Gloss higher than 80% lower than the
Munsell color change level |
| Water tolerance of | No bubble, not falling, losing light |
Anticorrosion Pigments, Inkjet Receptive Coating, Matting Agent
