Why It Matters
Water-soluble cutting fluids, grinding coolants and stamping lubricants entrain air and foam over in the sump; design calls for silicone and non-silicone defoamers
Solution Approach
Water-soluble cutting fluids, grinding coolants and stamping lubricants entrain air and foam over in the sump; design calls for silicone and non-silicone defoamers RawSource supplies the base chemicals that go into these programs. We can help with product selection, grade matching, and sourcing from multiple origins for supply security.
Typical Selection Workflow
1
Process & Requirement Definition
Map the unit operation and define the functional, purity, and regulatory requirements the chemical input must meet.
2
Chemistry & Grade Selection
Match the solvent, intermediate, acid or base, catalyst, or specialty additive to the process and downstream compatibility.
3
Trial & Specification
Validate performance at bench or pilot scale, and set the grade, treat rate, and packaging to match throughput and handling.
4
Quality & Supply Assurance
Lock the spec with a CoA and secure multi-origin sourcing for supply resilience and consistent lot quality.
Recommended Chemistries (4)
Food-Grade Silicone Antifoam Emulsion (10-50% Active)
CAS 63148-62-9
Silicone Fluids & Oils
Defoaming / Foam Control
Insoluble PDMS droplets spread at the air/coolant interface and lower local surface tension below the foam lamella, rupturing the bubble film in water-soluble fluids
Full Details
Food-Grade Silicone Antifoam Emulsion (10-50% Active)
CAS 63148-62-9
Silicone Fluids & Oils
Defoaming / Foam Control
Higher-active silicone compound for knockdown of stable foam in recirculating sumps where small dose rates are needed
Full Details
Isopropyl Alcohol (IPA)
CAS 67-63-0
Solvents
General-purpose cleaning solvent
1219 (ISOPROPANOL) · Class Low-surface-tension alcohol gives a fast non-silicone foam knock-down where silicone carryover onto machined parts (paint/plating adhesion) must be avoided
Melting Point: -88 °C Boiling Point: 82 °C at 760 mmHg Density: 0.785 at 20 °C
Full Details
Polypropylene Glycol (PPG-26) Flotation Frother
CAS 25322-69-4
Glycols & Polyols
Non-silicone defoamer and process aid
PPG-26 is polypropylene glycol, a propylene-oxide homopolymer (it contains no ethylene oxide). Its inverse-solubility cloud-point behavior lets it enter and destabilize foam lamellae as a silicone-free defoamer base, used where silicone carryover onto plating/paint-sensitive parts must be avoided
Full Details
Related Product Families
● Available
PPG & Non-Silicone Process Aids
Polypropylene glycol, glycol ethers, and non-silicone defoamers for applications where silicone contamination is prohibited
DefoamingSolvency
5 chemistries
View family
● Available
Industrial Solvents
Ketones, alcohols, aromatics, and glycol ethers for parts cleaning, degreasing, and manufacturing processes
SolvencyCleaning
15 chemistries
View family