ADDITOL® XL 109/50LG is a phenolic paint additive supplied as a low-viscous liquid with approximately 50% active substance in a solvent mixture. It is designed to prevent surface defects in oxidatively drying paints, such as icing, wrinkling, and shrinkage, while enhancing through-drying, leveling, and hardness. This additive is specifically effective for paints based on oil and alkyd resins.
Here are some key points from the technical datasheet:
- Specifications:
- Iodine Colour Number: <= 60
- Colour/Appearance: Brown
- Density (Liquids): Approximately 0.93 g/cm³ at 20°C
- Flash Point: Approximately 37°C
- Special Properties:
- Acts as an antioxidizing agent for oxidizing paint systems, inhibiting or retarding crosslinking reactions initiated by air oxygen in paint film surfaces.
- Acts as an antiskinning agent, impairing too quick drying of the surface and preventing surface defects.
- Enhances gloss, leveling, and film hardness.
- Suggested Uses:
- Used to prevent surface defects in oxidatively drying paints.
- Enhances through-drying and uniform drying over the whole layer of the film.
- Can be used in combination with Additol XL 297 for superior performance in antiskinning, drying, and gloss.
- Processing:
- Added to finished paint at ambient temperature.
- Should not be subjected to higher temperatures, as it will inactivate the additive.
- Storage:
- Packed in original containers, it has a storage stability of at least 730 days at temperatures up to 25°C.
It's important to note that the level of Additol XL 109 in the paint can vary depending on the type of defect being addressed, ranging between 0.1 - 2% on solid resin oil or alkyd. Higher quantities may retard surface drying, so the level should be carefully adjusted based on the specific requirements of the application. Additionally, the datasheet highlights that the content of non-volatile matter cannot be determined by usual methods, and excessive quantities of Additol XL 109/50LG can significantly impact oxidative drying.
