Functional Additive
Category:
Functional Additive
Product Overview:
Reduce melt viscosity, enhance coating fluidity, remove gases, and improve the surface performance of the coating film.
Keywords:
Functional Additive
| Product grade | Use | Main features | Dosage |
| WF100 | Flow aid | Reduce melt viscosity, enhance coating fluidity, remove gases, and improve the surface performance of the coating film. | 0.5–1.5% |
| WK300A | Hardening agent | Smokeless, highly abrasion-resistant, used in powder coatings to enhance film hardness. | 0.3–0.8% |
| WK304 | Bonding Additive | With certain conductivity, it can release the electrostatic charge accumulated on the surface of metallic-effect pigments in the electrostatic spray field, effectively addressing the issue of pigment buildup at the spray gun nozzle caused by static accumulation. | 0.5-1.0% |
| WK304A | Bonding Additive | Effectively raises the bonding temperature, prevents caking and nozzle blockage, does not affect gloss, and does not cause fogging. | 0.3–0.8% |
| WK308 | Charge regulator | Polar fatty acids can effectively regulate the charge of powder coatings, reduce the Faraday effect, and improve the powder-coverage rate in edges, corners, and recessed areas. Improve film leveling and eliminate defects such as yellowing. | 0.1–0.5% |
| WK308A | Antistatic agent | Polar fatty acid esters can effectively regulate the charge of powder coatings, reduce the Faraday effect, and enhance the coating efficiency in edges, corners, and recessed areas. Improve film leveling and eliminate defects such as yellowing. | 0.1–0.5% |
| WK309 | Frictional charging agent | Quaternary ammonium salts overcome the Faraday effect and enhance the powder deposition rate at edges, corners, and recesses. | 0.6–1.0% |
| WK310 | Degassing agent | Effectively improves wettability on the substrate and pigment dispersibility. Partially replaces benzoin, providing degassing, defoaming, and anti-yellowing effects. Improved the anti-caking and flow properties of powder coatings. | 0.5–1.5% |
| WK311 | Hardening agent | Microfine high-density polyethylene wax. It can provide a coating with excellent leveling and a smooth appearance. It exhibits excellent dispersibility, enhancing the wetting and dispersing properties of pigments and allowing for recoating. | 0.3–0.8% |
| WK311A | Hardening agent | Micro-powdered modified polyethylene wax. It provides excellent surface smoothness and scratch resistance, enhancing the surface protection of powder coatings. It exhibits better dispersibility and can be blended in afterward. | 0.3–0.8% |
| WK313 | Hardening agent | Microfine polytetrafluoroethylene wax. It can provide a coating with excellent leveling and a smooth appearance. It exhibits excellent dispersibility, strong wear resistance, high smoothness, and excellent temperature resistance. | 0.3–0.8% |
| WK314 | Hardening agent | Micro-powdered modified polypropylene wax. It can provide a soft, smooth coating. Has little impact on coating recoating and screen printing. | 0.3–0.8% |
| WK315 | Degassing agent | By reducing the melt viscosity of the system and improving its wettability on the substrate and dispersibility of pigments, a smoother surface can be achieved. Effectively helps powder coatings better degas and eliminate bubbles on various porous substrates (such as cast iron, cast aluminum, galvanized steel sheets, etc.). Improve the abrasion resistance and smoothness of powder coatings. | 0.3–0.8% |
| WK315A | Degassing agent | By reducing the melt viscosity of the system and improving its wettability on the substrate and dispersibility of pigments, a smoother surface can be achieved. Replace part of the benzoin to achieve better degassing and anti-yellowing effects. Thanks to its own smoothness, it enhances the anti-caking and flow properties of powder coatings and prevents clogging of spray gun nozzles. Improve the abrasion resistance and smoothness of powder coatings. | 0.3–0.8% |
| WK316 | Degassing agent | Micro-powdered polyamide-modified polyethylene wax. Improve the hardness and scratch resistance of powder coatings. Improves wettability on porous substrates, aids degassing and defoaming, results in a smoother surface, and can assist in matte finishing. | 0.3–0.8% |
| WK319 | High-efficiency wire breakage agent | Effectively addresses cracking and fish-eye defects on welded joints, dead-end grooves, and untreated workpieces. Suitable for a variety of powder coating systems, including both high-gloss and matte powders. | 0.5–1.5% |
| WK320 | Adhesion promoter | Significantly enhances the adhesion and flexibility of the coating to the metal substrate. Greatly enhance the impact resistance of coatings and effectively address cracking and bursting phenomena in coatings. | 0.5–1.5% |
WK321 | Adhesion promoter | Enhances adhesion (bend impact) on substrates such as cast iron, cast aluminum, steel, aluminum alloys, galvanized surfaces, and glass; while also improving interlayer adhesion. Effectively enhances the adhesion between the coating and the substrate, increases T-peel strength, and improves corrosion resistance. It can address the issue of residual oil and rust stains on the workpiece surface caused by inadequate pretreatment, which in turn leads to gas release during baking and results in reduced adhesion of the coating film. | 0.5–1.5% |
WK330 | Antioxidant | Effectively inhibits thermal degradation and oxidative degradation of polymeric materials. Widely used in systems such as polyester, polyurethane, and polyethylene, it offers outstanding processing stability and long-lasting protective effects. | 0.3–0.8% |
WK331 | Antioxidant | Significantly inhibits yellowing of powder coatings caused by prolonged exposure to high temperatures during gas or electric baking, and is suitable for a variety of powder coating systems. At a baking temperature of 180–230℃, the coating surface exhibits only a slight increase in color difference. | 0.5-1.0% |
WK332 | Gas-resistant and yellowing-resistant agent | Prevent and mitigate yellowing caused by oxidation of powder coatings by oxidizing gases during baking and curing in gas ovens. Suitable for various powder coating systems, including TGIC and HAA. At a baking temperature of 180–250℃, the coating surface exhibits only a small increase in color difference. | 0.5-1.0% |
WK350 | Anti-caking agent | Hydrophobic silica promotes powder flow and effectively prevents powder agglomeration. | 0.1–0.5% |
WK6001 | High-temperature resistant additive | Acrylic resins containing carboxyl groups can react with epoxy resins, resulting in a high crosslinking density and excellent performance in terms of weather resistance, high opacity, high-temperature resistance, and resistance to yellowing. These resins are particularly suitable for the formulation of high-temperature-resistant powder coatings. | 5-10% |
Styrax | Degassing agent | High purity and superior yellowing resistance compared to conventional benzoin. Eliminate pinholes and bubbles. | 0.3–0.5% |
Styrax NL | Degassing agent | Modified benzoin effectively eliminates pinholes in powder coatings and exhibits better yellowing resistance compared to conventional benzoin. | 0.3–0.8% |
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