Gel Air Fresheners: Why a 1.2 Percent Carbomer Gel Is Not an SAP Job
SAP makes an opaque particle gel that weeps fragrance. Use it for bead gels and bulk refills, always with xanthan, and test at 45 C for 30 days.
Hard Water at 380 mg/L: The Formulation Adjustment Most Gel Lines Skip
A pack plant in the Middle East filled two batches on consecutive days, one with softened water and one with mains water at 380 mg/L as calcium carbonate. The softened batch hydrated to a firm gel in 12 minutes. The mains batch took 26 minutes, never fully smoothed out, and produced packs that relea…
