Question
Posted on: June 15 2018Prepare Carbomeergel with urea, silicone and paraffin oil?
Answer
What should be prepared here is an "Emulgel". You can best incorporate the fat phase by not only counting on carbomer but adding a strong emulsifier. For both silicone and paraffin oil, the optimal HLB for an O/W near 11 is located. This means that the 2 G emulsifier, which is added , consists of 0.7 g Arlacel C (sorbitansesquioleate) and 1.5 g Tween 80 g.
Tarreer a bowl with pestle (tare weight = T)
Apply in that scale (I) : liquid paraffin and silicone oil and 0.7 g sorbitansesquioleate (Arlacel C) and 1.5 g Tween 80 and mix (possibly slightly warm up)
Take a second bowl, rub the urea into powder and mix with the weighed amount of carbomeergel TMF
Gradually add the Carbomeergel to scale I stir with pestle. Transfer the Carbomer gel, using a panlikker, completely into scale I
Mix violently until a white gel is obtained. Pack.
Note: A treatment with zalfmengmachine can improve the texture, gloss and stability. Do not use ointment roller.