Description：
RP620 is a high performance rust preventative package based on calcium salt, which is free from barium and heavy metals.
RP620 is low viscosity and easy to blend. It offers excellent compatibility with most solvent and mineral oil.
RP620 provides outstanding water displacement & separation properties, and rust protection for most metals. It leaves an ultra thin,almost colorless protective film on the metal surface, when blended with carriers.
Features and benefits：
1、Free of barium and heavy metals.
2、Outstanding salt spray protection.
3、Excellent water displacing & separating properties.
4、Non-corrosive to a variety of non-ferrous metals.
5、Leaves a thin, colorless protective film.
6、Excellent compatibility with most solvent and mineral oil.
7、Low viscosity, easy to be blend.
Typical physical and chemical properties
| Appearance |
Dark Amber liquid |
| Specific Gravity @ 25℃ |
1.029 |
| Flash Point, COC, ℃ |
≥120 |
| Viscosity @ 40℃ |
164 |
RECOMMENDED BLEND RATIOS：
A. Oily film
| 4-20% |
RP620* |
| 0-3% |
Glycol ester** |
| Balance |
Mineral oil |
The treat level of RP610 is based on actual demands.
1-3% glycol ester can be added to improve the water displacing property, when the treat level of RP610 is low; there is no need for glycol ester when RP 610 is on a high treat level.
B. Volatile
| 4-12% |
RP 620 |
| Balance |
Solvent |
APPLICATIONS：
RP620 can be used for protection of finished parts in indoor storage for at least twelve months, as well as short period of outdoor exposure.
