Chem-Crest ProPass (1 Gallon)

Chem-Crest ProPass (1 Gallon)

A powerful, phosphate-free citric passivation concentrate and deoxidizer cleaner, available in a convenient 1-gallon bottle.

Product Overview Chem-Crest ProPass is expertly formulated to enhance and protect your metal components. This advanced solution is designed to remove surface contamination, significantly increase corrosion resistance, and eliminate discoloration, tarnish, scale, and oxides. It serves as a superior, safer alternative to traditional nitric acid passivation methods and is certified to pass rigorous citric acid passivation evaluations, including ASTM A967. For tailored advice on integrating Chem-Crest ProPass into your specific processes, please contact a Crest representative.

Key Benefits

• Removes Contaminants: Effectively eliminates light oils, scales, oxides, and other common contaminants from part surfaces. For optimal performance and to extend the life of the solution, pre-cleaning parts ultrasonically before passivation is recommended.
• Enhances Corrosion Resistance: Forms a passive, protective layer on metal surfaces, guarding against future corrosion and environmental damage.
• Restores Appearance: Efficiently removes tarnish, discoloration, and scale, restoring the metal's original luster and finish.
• Safe and Compliant: A phosphate-free and less hazardous alternative to nitric acid, ensuring a safer work environment and easier compliance.

Operating Conditions For optimal results, follow these guidelines:

• Recommended Dilution: Use a 10–20% concentration by volume for standard passivation. For heavy descaling applications, a 25% concentration is recommended.
• Operating Temperature: Heat the solution to 150°–180°F (65°–82°C).
• Passivation Times:
  • 140°–160°F (60°–71°C): Minimum of 4 minutes
  • 120°–140°F (49°–60°C): Minimum of 10 minutes
  • 70°–120°F (21°–49°C): Minimum of 20 minutes
• Rinsing: A thorough rinse is crucial after passivation. Use water heated to 100°–150°F (38°–65°C) for best results.
• Custom Recommendations: Contact your Crest representative for product-line-specific advice to optimize your process.

Substrate Compatibility Chem-Crest ProPass is highly versatile and safe for use on a wide range of materials:

• Metals: Compatible with brass, bronze, copper, stainless steel alloys, zinc, and aluminum.
• Non-Metals: Safe on glass, ceramics, and most plastics.
• Special Note for Ferrous Metals: Non-stainless steel surfaces are susceptible to flash rusting after treatment. They must be immediately protected with a suitable rust inhibitor.

Availability Chem-Crest ProPass is available in the following sizes to meet your operational needs:

• Case of (4) x 1-gallon plastic bottles
• 5-gallon pails
• 55-gallon containers

Physical Data

• Flash Point: None
• Specific Gravity: 1.05
• pH (2% solution): 2.6 ± 0.5
• Solubility in Water: Complete
• Volatiles: N/A (These values are typical and do not constitute formal specifications.)

Storage and Disposal

• Storage: Store in a cool, dry place. Avoid freezing conditions to maintain product integrity.
• Disposal: Dispose of the product in accordance with all applicable Federal, State, and Local regulations. The product concentrate contains no substances regulated under SARA Title III, Section 313.

Safety Precautions Consult the Safety Data Sheet (SDS) for comprehensive handling instructions, safety information, and personal protective equipment (PPE) recommendations before use.

Please Note: Chemicals and equipment items are shipped from separate locations.

Disclaimer: All statements, technical information, and recommendations contained herein are based on tests or other information available to us, which we believe to be reliable, but the accuracy and completeness thereof is not guaranteed and are made without representation or warranty. They are presented for your own investigation and verification. Products discussed are sold without warranty, expressed or implied, in law or fact and upon the condition that the purchasers make their own tests to determine the suitability of such products to their particular purpose. We shall not be liable for any injury, loss, or damage direct or consequential, arising out of the use or the inability to use the product. It is the user's obligation and responsibility to determine that any use of the product or the information may infringe on patent rights.