minimum mixing time for any given formulation may vary.
The following time values for each rpm serves as benchmark, which should be adjusted
after each modification of rpm.
Size of the UNGUATOR® Jar
Type of formulation
15-30ml
50-100ml
200-300ml
500ml
Suspension
02:00
02:30
04:30
06:10
Soft-in-soft
01:40
02:10
04:00
05:10
Emulsion
02:00
02:20
04:10
05:30
Size of the UNGUATOR® Jar
Type of formulation
15-30ml
50-100ml
200-300ml
500ml
Suspension
03:00
03:50
06:45
09:30
Soft in soft
02:30
03:20
06:10
07:50
Emulsion
03:00
03:50
06:30
08:30
6.6 Selecting the UNGUATOR® Jar Size
The maximum rpm for jar sizes 100ml and greater is restricted. This is a safety feature to
optimize the power exposure for all material, jars, and mixing blades particularly when
using larger UNGUATOR® jars.
6.7 Condition of the ingredients for any formula
Powder
Generally powders should be used as microfine substances.
In order to ensure better wetting of powders in aqueous formulations, micronized
substances should be added only after any liquid constituents.
For a solids content less than 2%, we recommend applying a pregrinding process together
with approx. 30% of the ointment base (see paragraph 6.3.4 - pregrinding program).
27
Tab. 5: Minimum values for mixing time at 2150 rpm in min:s
Tab. 6.: Minimum values for mixing time at 1650 rpm in min:s