Solubility failures – haze, separation, ring formation – trace to solvent mismatch, dosage overload or matrix interference. Systematic troubleshooting resolves most issues without reformulation.
Key Highlights
- Confirm concentrate solubility class against your solvent system
- Reduce dosage below solubility ceiling before changing formula
- Emulsifier addition solves oil-in-water applications
Diagnostic Sequence
- Verify concentrate solubility class on TDS (PG-soluble, oil-soluble, water-soluble)
- Check dosage against solubility ceiling – haze often means oversaturation
- Test in actual matrix: proteins, fats and VG alter solubility vs base solvent
- If ceiling-limited: request higher-concentration grade (less carrier)
- If matrix-incompatible: emulsifier or solubilizer addition
Prevention at Specification Stage
Specify solubility requirements when requesting samples: state your base system (PG/VG ratio, oil content, water activity). matai TDS documents solubility class per SKU, and the technical team recommends grades matched to customer matrices.
When to Request a Different Grade
Concentrates exist in carrier variants – a PG-heavy grade that hazes in max-VG may have a VG-compatible sibling. Asking for the alternative grade usually resolves solubility without reformulation.
Frequently Asked Questions
Why is my e-liquid hazy?
Usually concentrate dosage exceeding PG solubility capacity in VG-heavy bases. Reduce dosage, increase PG fraction, or request a VG-compatible grade.
How do I fix oil flavors in beverages?
Emulsifier systems (gum arabic, modified starch) or switch to water-soluble flavor grades.
Next step: Match grades to your matrix via technical support.