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Whip Mix Blog

Cleaning Your Whip Mix Plastic Vac-U-Mixer Bowls

500ml bowl resized 600Keeping your mixing bowls clean and in good condition is an important part of ensuring proper outcomes when mixing gypsums and investments. To clean mixing bowls we recommend using Gyp-Strip, a highly affective gypsum remover that helps remove plaster, stone and gypsum investments from mixing bowls, acrylic dentures, denture flasks, casting rings and non-aluminum articulators. However, there are other industries outside of dental who use our plastic vac-u-mixer bowls and Gyp-Strip is ineffective.

If you are mixing material other than gypsum or investment here are some guidelines & solvent compatibility charts to help you choose a proper cleaning agent.

Materials Which Did Not Affect the Bowl within 1-Year

Calcium Chloride, 2.5%

Citric Acid, 10%

Ethylene Glycol



Hydrogen Peroxide, 10%

Methanol, 5%

Oleic Acid

Soap Solution, USP

Sodium Carbonate, 2.5%

Sodium Chloride, 10%

Sodium Hydroxide, 1%

Sulfuric Acid, 3%



Crude Oil

Note: Any substance not in the following table may cause the bowl to soften, warp or dissolve

Materials Which Will Swell, Soften or Warp the Bowl within One Year 

Acetic Acid, 5%

Ammonium Hydroxide, 10%

Carbon Disulfide*

Carbon Tetrachloride


Ethylene Alcohol, 50%

Ethylene Alcohol, 95%

Formaldehyde, 35%*

Gasoline, Regular

Sulfuric Acid, 30%


*Whip Mix bowl lid may not be compatible

Materials Which Will Dissolve or Disintegrate the Bowls within 1-Year 


Butyl Acetate

Ethyl Acetate

Ethylene Glycol Monoethyl Ether

Ethylene Glycol Monomethyl Ether Acetate

Hydrochloric Acid, 10%

Methanol, 100%

Methyl Ethyl Ketone

Methyl Isoamyl Ketone

Nitric Acid

Phenol, 5%

Note: Any substance not listed in the table above has not been tested

Clean Worn Bowls resized 600Remember, these mixing bowls, even with regular cleaning, are not meant to last a lifetime. If you are seeing any deep scratches, material retention after cleaning or loss of expansion in phosphate investments then it is probably time to replace them.  Otherwise, we highly recommend you replace your bowls every 2-5 years.

Solvent Compatibility testing & charts source: Eastman Chemical Company 

Sarah Brom-Criscola

Sarah Brom-Criscola is a Sr. Marketing Specialist where she oversees digital and content marketing. She earned her Bachelors Degree in Marketing from Eastern Kentucky University and MBA from Bellarmine University.