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Description
Ottochem CR Blue is a mildly alkaline, ammonia-free ultrasonic cleaning concentrate formulated for the jewelry trade. It quickly removes buffing and polishing compounds — Tripoli, rouge, and white diamond — from gold, silver, platinum, brass, copper, and rhodium without harsh fumes. Its blend of sequestrants, surfactants, and emulsifiers delivers strong cleaning performance while remaining economical and biodegradable. Available in 1 Quart, 1 Gallon, and 5 Gallon sizes to suit any shop volume.
Features
- Biodegradable, non-ammoniated concentrate formulated for tough cleaning jobs
- Fast removal of buffing and polishing compounds (Tripoli, rouge, white diamond)
- Safe for gold, silver, platinum, brass, copper, and rhodium
- Optimized for heated ultrasonics; can be premixed or mixed directly in-tank
- Economical 5–10% use concentration
- Mildly alkaline formula — no harsh fumes
Specifications
| Formula Type | Mildly alkaline concentrate |
|---|---|
| pH | 11–12 |
| Ammonia | Ammonia-free |
| Biodegradable | Yes |
| Use Concentration | 5–10% by volume (10:1 to 20:1 water to concentrate) |
| Ultrasonic Temperature | 120–140 °F (49–60 °C) |
| Ultrasonic Power | 50 watts per gallon recommended minimum |
| Compatible Metals | Gold, silver, platinum, brass, copper, rhodium |
Available Options
| Part # | Size |
|---|---|
| 123.600 | 1 Quart |
| 123.601 | 1 Gallon |
| 123.602 | 5 Gallon |
Directions & Mixing
| Standard Use Ratio | 5–10% by volume (approx. 20:1 to 10:1 water to concentrate) |
|---|---|
| Strong Mix | Up to 1:8 (1 part concentrate to 8 parts water) |
| Ultrasonic Temperature | 120–140 °F (49–60 °C) |
| Ultrasonic Power | 50 watts per gallon recommended minimum |
| Make-Up | Add concentrate to water in the tank or premix; stir and heat to operating temperature |
| Rinse | Always follow with a clean water rinse |
| Bath Maintenance | Maintain concentration by periodic additions as soil load increases |
Recommended Dilutions
| Ratio | Application |
|---|---|
| 20:1 (5%) | General purpose cleaning |
| 10:1 (10%) | Polishing & buffing compound removal |
Applications
- Post-buff cleaning prior to finishing or stone setting
- Pre-cleaning prior to plating
- Shop maintenance cleaning of tools and fixtures
Notes
- Caution: Mildly alkaline (pH 11–12). Avoid prolonged skin and eye contact; wash hands after handling.
- Exercise caution with porous or chemically sensitive stones; test before use when in doubt.
- Use appropriate PPE and follow equipment manufacturer guidelines.
Specifications
- Brand
- Otto Frei
- Part #
- 123.600
- Type
- Cleaning Solutions
- Country of Origin
- United States
- Dimensions
- 3.5 in x 3.5 in x 10 in
- Formula Type
- Mildly alkaline concentrate
- pH
- 11–12
- Ammonia
- Ammonia-free
- Biodegradable
- Yes
- Use Concentration
- 5–10% by volume (10:1 to 20:1 water to concentrate)
- Ultrasonic Temperature
- 120–140 °F (49–60 °C)
- Ultrasonic Power
- 50 watts per gallon recommended minimum
- Compatible Metals
- Gold, silver, platinum, brass, copper, rhodium
Documents
Specs, manuals, and certificates for this product. All files open in a new tab.
California Prop 65 Warning:Cancer and Reproductive Harm. www.P65warnings.ca.gov.
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