Use of Fumed Silica as an aid in alt process printing. Platinotype.

[Robert Hall]

Robert Hall submitted a new resource:

(there was a url link here which no longer exists) - Use of Fumed Silica as an aid in alt process printing. Platinotype.

Just a quick pictorial editorial on the use of fumed silica to enhance the max black and improved contrast in printing.This has been found to improve most hand coated processes. Your mileage may vary. Here is 8 ounces of Fumed Silica. It's in a gallon jar and looks to be quite enough to last a lifetime. I got this from Amazon for about $20 including shipping. I would suggest getting a more manageable amount at Bostick and Sullivan. This is enough to last a lifetime as it takes very...

(there was a url link here which no longer exists)

 

[jorj]

Nice summary, Robert.

Word of warning to those ordering this via Amazon: I did too - and was sent hydrophobic fumed silica, even though it was clearly sold as "Aerosil 200" (which is hydrophilic). Cabosil now in hand, I may be able to try again soon...

Moral of the story: stick with Bostick & Sullivan.

 

[michael9793]

Nice summary, Robert.

Word of warning to those ordering this via Amazon: I did too - and was sent hydrophobic fumed silica, even though it was clearly sold as "Aerosil 200" (which is hydrophilic). Cabosil now in hand, I may be able to try again soon...

Moral of the story: stick with Bostick & Sullivan.

difference in price is 500ml (1/2 Qt)for 19.00 from B&S and Amazon is $12.00 for 5 Qts. I'll take the risk I can order a whole lot of times before I would be loosing my money.