Knowde Enhanced TDS
Identification & Functionality
- Chemical Name
- CASE Ingredients Functions
- CAS No.
- 57-55-6
- EC No.
- 200-338-0
- Technologies
- Product Families
- Mechanism
- Complexation with Fe3+
Features & Benefits
- CASE Ingredients Features
- Features
- HALOX® RC-980 is a low-odor, water misciblepaint additive which converts red rust to black iron oxide.
- Advantages
- HALOX® RC-980 does not contain tannic acid or phosphoric acid. It can be post-added to most vinylidene chloride binders used in rust conversion primers. It is less soluble and less acidic (pH 4-6) than tannic acid. HALOX® RC-980 provides better salt spray and cyclic corrosion performance and is non-flammable.
Applications & Uses
- Applications
- Compatible Polymers & Resins
- Recommended Loading Levels
- 3-6% as supplied on total formula weight for W/B coatings.
- 7-10% as supplied on total formula weight for S/B coatings.
- Formulation Tips & Additional Guidelines
Water Based Paint : It is recommended that you adjust the pH of the resin to pH 3.0 to 4.0 before adding it to the grind to avoid shock. HALOX® RC-980 has a pH between 3.5 and 4.5. Do not pre-mix the resin with co-solvent as this may cause gellation.
Filler Pigments : Using TiO2 in rust converter formulations will cause the black iron oxide to appear grayish in color since TiO2 has a high refractive index. Avoid CaCO3 or any fillers which are unstable under acidic (pH < 6) conditions.
Stability : PVDC resins are not inherently heat stable. Check the stability of the paint formulations periodically at room temperature. Consult your resin supplier for further guidelines on stabilizing PVDC paints. As with any other additives, you should monitor the stability of HALOX® RC-980 in your paint formulation.
Compatibility : HALOX® RC-980 is compatible with most acidic based paints. We do recommend you always check compatibility with your formulation.
Foaming : If foaming occurs, HALOX® recommends testing Foamaster NXZ (Cognis), Additol VXW 6210N (Cytec), or Surfynol 104A (Air Products).
Solvent Based Paint : When working with alkyds such as Reichhold’s Beckosol 11-035 you may see longer dry times with HALOX® RC-980. HALOX® suggests bumping up your drier package to compensate for this and speed up oxidative drying. Long oil alkyds are NOT recommended when using HALOX® RC-980.
Application : Rust converter paints can be applied by brush or spray depending on the viscosity of the final paint. HALOX® recommends you apply at least 75 microns of the rust converter paint containing HALOX® RC-980.
Substrate Preparation : Brush off loose rust and mill scale. This will allow the primer to bond more effectively to the rusted surface. Substrates: HALOX® RC-980 will convert rust only on corroded or rusty steel.
- Applications
- Water Based Latexes
- Water Based PVDC
- Water Based Coatings
- Solvent Based Coatings like Medium Oil Alkyds, Cationic 1K Epoxies, and Cationic 1K Acrylics
- Post-add to low pH water-based vinylidene chloride paints
Properties
- Appearance
- Straw yellow liquid
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Color (Lovibond) | 2 | — | — |
| Flash Point (PMCC) | min. 218 | °F | — |
| Freeze Cycle | Freeze Stable | — | — |
| pH (Neat) | 3.5 - 4.5 | — | — |
| Specific Gravity (at 25°C) | 1.07 | — | — |
Regulatory & Compliance
- Certifications & Compliance
Storage & Handling
- Shelf Life
- 12 Months