[johnsutw]

The manufacturer uses the IOB system, not the HLB system.

The IOB value  is: 0.274

I was informed by the manufacturer’s technical specialist that one could approximate HLB by multiplying the IOB by 10.

IOB 0.274 x 10 = HLB 2.74

I have no further info on how to use IOB in formulating.

John
BulkActives

[johnsutw]

I have just placed an order for cholesterol NF, which was not easy as it is not in stock where I live. Thanks for the Skinmimics info, will definitely explore that more

[johnsutw]

James from promix replied:

“we will not be able to modify the shaft to fit the Dremel as this will be too thin to machine.
Also the shaft will become weak and dangerous at high speed”

So, the Dremel is now definitely not an option

Will now look for a high torgue and high speed electric drill, and use tonyh‘s 

idea of using the “Speed Controller, Variable AC Motor Rheostat” (from his post above)

[johnsutw]

Again, thanks for the detailed info!!!

[johnsutw]

Bobzchemist

, I have emailed promixmixers.com, because they state they can customize shafts, and asked if they can do their 25S12 shaft (1/4″ wide  -12″ long)  with a 1/8 inch
taper at the end.

Will post updates here.

MakingSkincare, what sort of torgue would be best for viscous emulsion?

So far I have only focusssed on speed.

Steve Schmidt from DisperseTech wrote

“Usually we try to reach a tip speed of 5000 feet per minute. So a 4″ blade would need about 5000 rpm, a 2″ - 10,000, a 1″ 20,000.”

Dremel 3000: 125W to 130W with 10,000-33,000rpm.
Dremel 4000 : 175W with  5,000 - 35,000rpm

Cat Scientific X120: 140 Watt with 5000 – 35000 rpm
Cat Scientific Unidrive X1000:  650 Watt with 4000 – 33000 rpm

I am still looking for a variable speed electric drill that has high torgue AND high variable speed RPM.

[johnsutw]

Thanks!

[johnsutw]

Thank you, Robert!

A Dremel is not a must, but it is the only small tool I have found with this RPM range, I will follow your suggestion!

Regards,
John

[johnsutw]

 ‘Philosophy’ solved the stability issue by simply selling l ascorbic acid powder separately (‘ turbo booster c powder’) and getting customers to mix it themselves with a water based serum or cream. Something many DIY skin care enthusiasts were doing well before Philosophy started selling their powder.

[johnsutw]

tonyh, this is the post that led me to this forum;-)

I was looking for a hand held homogenizer at a reasonable price, and came across the
CAT X120. At US$357.00 I thought it was quite reasonable, but then realized that it is just for the drive, and that the Shaft and Generator Assembly will cost an additional US$450.

I then started searching on Google for cheaper alternatives, and ended up here.

I do have a question, and hope someone can help.

I had not quite given up on finding a DIY hand held, variable speed, high shear mixer/disperser, and contacted Jim, at Gardco.

He replied “Most cosmetic companies use a small 1-5/8 inch dispersion blade with a 12 inch 3/8 diameter shaft.”

SO, I then got excited, and contacted Dremel to ask what size shaft their Dremel Pro 3000 (Variable speed from 5,000 to 32,000 RPM) takes.

Big disappointment, they wrote:

“The Dremel high speed rotary tools will only accept a shaft size that is 1/8″ - 1/32″.”

So, the Gardco shaft is too big.

My question:

Does anyone know of a shaft (and disperser blade) that will fit in a 1/8″ - 1/32″ socket?

OR

Does anyone know of a variable speed rotary tool (5,000 to -30,000 RPM, that can fit a 3/8 diameter shaft?

This setup is really intended for the DIY Skin care crowd, for making small fresh batches of about 50 to 100 gram of product.

[johnsutw]

However,Pinnell claims that efficacy of l ascorbic acid in skin is pH dependent, less than pH3.5

Source: Pinnell, S. R., Yang, H., Omar, M., Riviere, N. M., DeBuys, H. V.,
Walker, L. C., Wang, Y. and Levine, M. (2001), Topical L-Ascorbic Acid:
Percutaneous Absorption Studies. Dermatologic Surgery, 27: 137–142.
doi: 10.1046/j.1524-4725.2001.00264.x

[johnsutw]

Hi all, 

My name is John, from New Zealand, but living in Taiwan. 

I came across this awesome website whilst googling for cheaper alternatives to professional homogenizers (the search I did was “cosmetic mixing blades for electric drills”).