Post - Polish & Post - Texture Disk Cleaning Processes

 A.  Two – Step  Acid/Alkaline Cleaning

Acid Cleaners are not recommended for soap–type texturing fluids. When applied the soap ingredient is converted to fatty acid on oily water insoluble liquid. This liquid is not easily removed from the disk surface in subsequent alkaline cleaning steps.

Acid cleaning can also fix residues of oily materials on the surface;, such as fatty acids, hydrocarbon oils and silicone oils. The acid cleaner will make them more strongly attached to the surface. If an acidic cleaner is used in the brush-cleaning step, the oily substances will smear or spread on the PVA and the disk surface will be more difficult to remove completely with the subsequent alkaline cleaning.  

However, if you would like to use the “two – step” cleaning process, then you can use the following acidic cleaners: 

NuKlean AC 202,  NuKlean AC 205,  NuKlean AC 207,  NuKlean AC 207, NuKlean AC 209           

Our acidic cleaners can be used in spray, immersion, ultrasonic and scrub stations.

They are formulated to clean soap containing texturing fluids.

For the alkaline cleaning step you can use:

NuWet DM 36,  NuWet DM 41,  NuWet DM 49,  NuWet DM 50, NuWet DT 67,  NuWet DT 75,  NuWet DT 78

 These are heavy duty alkaline cleaners for difficult to remove organic residues, and particulates.

Our cleaning products can be tweaked to meet your cleanliness requirements. Or, we can custom formulate a new cleaner for you exclusively.

B.  Alkaline Cleaning 

Mildly alkaline products can be used in the post-texture spray and immersion steps.

These products will remove the texturing fluids containing soaps without converting the soap into fatty acid, as well non-soap fluids. It is important to remove most of the texturing slurry in the early stages of cleaning. These products are buffered.

Mild alkaline buffered cleaners:

NuRinse BR 33,  NuRinse BR 54,  NuRinse BR 55

Then, stronger alkaline cleaners can be used in the pre-sputtering cleaning step. These products will remove organic residues, diamond particles and swarf. They are non-chelated.

High alkalinity cleaners:

NuWet DM 30,  NuWet DM 41, NuWet DT 64,  NuWet DT 67,  NuWet DT 72,  NuWet DT 78

Ni/P  Plated Disks,  Post – Polish

 Removing Aluminum oxide slurry can be accomplished with acidic cleaners such as:

 NuKlean AC 205,  NuKlean 209

 Or, mild alkaline cleaners such as:

 NuRinse BR 33,  NuRinse BR 54,  NuRinse BR 55,  NuWet DM 42

 Colloidal Silica can be removed with:

 NuWet DM 42,  NuWet DM 43

Glass Disks

Post – Polish Cleaning

Alkaline cleaners are most effective in removing the polishing slurry.  The following products can be used.

NuWet DM 33,  NuWet DM 36,  NuWet DM 41,  NuWet DM 50

Post – Texture Cleaning

Alkaline cleaners are most effective in removing texturing slurries, including particulates.  You can use the following:

 NuWet DM 41,  NuWet DM 46,  NuWet DM 50,  NuWet DM 300

 As a pre – sputter cleaner you can use our unique acidic cleaner  NuKlean GD 11.

 Removing Unusual Contaminants From Glass Disks

 We can custom formulate cleaners to remove specific contaminants from your disks.