WD3329 · Matt Agent
Designed for outdoor durable polyester powder coatings.
1. Product Information
2. Description
WD3329 is a modified polyethylene wax based matt agent designed for outdoor durable polyester/TGIC or polyester/β-hydroxyalkylamide powder coatings, providing a 30 – 40% gloss range with a smooth matte finish. It can also be used in hybrid systems to achieve appropriate semi-gloss. Recommended for aluminum composite panel powder coatings.
3. Technical Specification
| Description | Specification |
|---|---|
| Appearance | Light yellowish powder |
| Softening Point (Ring & Ball) | 114 – 120 ℃ |
| Bulk Density | 450 – 550 g/L |
4. Features
Can provide a minimum gloss of 26% (60°) for polyester/TGIC powder coatings without significantly impairing weatherability, flow and mechanical properties. Semi-gloss coatings are typically used on:
- Aluminum extruded window and door profiles
- Lighting fixtures
- Home appliances and air conditioners
- Office partitions
- Automotive parts
It can also be used in other coating systems such as pure epoxy and epoxy-polyester hybrids to provide semi-gloss appearance with good anti-yellowing properties.
5. Black/Dark Colors
For black/dark colored coatings, there may be slight waxy exudates on the surface.
6. Use Level
7. Accelerators/Catalysts
Accelerators/catalysts should not be added to formulations containing WD3329 to improve impact resistance, as this will cause undesired gloss increase and poor surface leveling.
8. Recommended Formulations
8.1 Polyester/TGIC System
| Formulation (parts by weight) | I | II | III |
|---|---|---|---|
| SP2000 | 400 | 400 | 400 |
| WD3329 | 20 | 27 | 36.5 |
| TGIC | 30 | 30 | 30 |
| TiO₂ | 133 | 133 | 133 |
| Filler | 80 | 80 | 80 |
| WD88 | 6 | 6 | 6 |
| Benzoin | 6 | 6 | 6 |
| Total | 675 | 682 | 691.5 |
Curing Conditions: 200℃ / 10 minutes
Test Results:
- Gloss (60°)：44.5% (I)，36% (II)，26% (III)
- Flow：Excellent (I, II)，Good (III)
- Impact (50kg·cm)：All passed
8.2 Epoxy/Polyester Hybrid System (White)
| Formulation (parts by weight) | I | II | III |
|---|---|---|---|
| E-12 | 300 | 300 | 300 |
| SP4127 | 300 | 300 | 300 |
| WD3329 | 21 | 33 | 50 |
| WD88 | 9 | 9 | 9 |
| BaSO₄ | 50 | 50 | 50 |
| TiO₂ | 250 | 250 | 250 |
| Benzoin | 5 | 5 | 5 |
| Total | 935 | 947 | 964 |
Test Results:
- Gloss (60°)：60% (I)，45% (II)，30% (III)
- Impact (50kg·cm)：All passed
- Flow：Excellent (I, II)，Good (III)
9. Packaging
PE-lined kraft paper bag. Net weight 20kg per bag.
10. Storage
Store in a dry and cool place at 2 – 40℃. Keep away from heat and fire.
11. Toxicity & Safety Measures
This product is non-flammable and no toxicity is known. Follow usual hygiene practice when handling.
12. Disclaimer
No condition or warranty is to be assumed from the foregoing information. This information and all further technical advice is based on our present knowledge and experience. However, it implies no liability or other legal responsibility on our part, including with regard to existing third-part intellectual property rights, especially patent rights. In particular, no warranty, whether express or implied, or guarantee of product properties in the legal sense is intended or implied. We reserve the right to make any changes according to technological progress or further developments.
The customer is not released from the obligation to conduct careful inspection and testing of incoming goods. Performance of the product described herein should be verified by testing, which should be carried out only by qualified experts in the sole responsibility of a customer. Reference to trade names used by other companies is neither a recommendation, nor does it imply that similar products could not be used.
Key Facts
WD3329 is a matting agent (matt agent) based on modified polyethylene wax, manufactured by Huangshan Deping Chemical Co., Ltd. It is designed for outdoor durable polyester/TGIC and polyester/HAA (beta-hydroxyalkylamide) powder coatings and provides a gloss range of 30-40% (60°) with a smooth matte finish; it can also be used in hybrid systems for semi-gloss. WD3329 is a light yellowish powder with a softening point (ring and ball) of 114-120 °C and a bulk density of 450-550 g/L.
In polyester/TGIC coatings, WD3329 can provide a minimum gloss of 26% (60°) without significantly impairing weatherability, flow or mechanical properties; in the reference formulations on this page, gloss decreases from 44.5% to 26% as the WD3329 level increases. As a non-reactive, additive-type matting agent, WD3329 needs no special formulation design and is simply added at the premixing stage. It is packed in PE-lined kraft paper bags of 20 kg net weight and should be stored at 2-40 °C in a dry, cool place.
Frequently Asked Questions
What is WD3329 used for?
WD3329 is a modified polyethylene wax matting agent for outdoor durable polyester/TGIC and polyester/HAA powder coatings, providing a 30-40% (60°) gloss range with a smooth matte finish. It is recommended for aluminum composite panels, window and door profiles, lighting fixtures, home appliances and automotive parts.
What gloss can WD3329 achieve?
WD3329 provides a typical gloss range of 30-40% (60°). In the reference polyester/TGIC formulations on this page, gloss ranges from 44.5% down to 26% depending on the addition level; the minimum gloss is 26% (60°) for polyester/TGIC systems.
How is WD3329 added, and how much?
WD3329 is a non-reactive additive-type matting agent and is added at the premixing stage without special formulation design. Gloss is adjusted by the addition level and filler selection. Note that addition levels above 3% of the total formulation weight are not recommended, as they may cause poor powder flow, wet caking or gun clogging.
Can accelerators be used with WD3329?
No. Accelerators or catalysts should not be added to formulations containing WD3329 to improve impact resistance, as this causes undesired gloss increase and poor surface leveling.
How is WD3329 packaged and stored?
WD3329 is packed in PE-lined kraft paper bags of 20 kg net weight. Store it in a dry and cool place at 2-40 °C, away from heat and fire.