Off Set powder

[printerdw]

Has anyone ever used Corn Starch for set off powder?

 

[Xlb]

Ink Additive

Ink Additive

Powered Laundry Starch / Magic !!!!

 

[Dan Roll]

Any particulate material will do, just remember you are breathing the stuff. Most commercial spray powders are corn starch, I am wary of inhaling much of the other types of products.

 

[BillJ]

The only problem is particle size. Most units are designed for a particular size. Corn starch from the market is probably not graded by size.

 

[BacoUK]

the rule of thumb is to use a spray powder which has a diameter of one-tenth of the GSM of the stock, eg 200 GSM use a 20 micron diameter powder

each type of natural starch has a different diameter, so you will find that the best suppliers such as Archem in the UK use corn, wheat, samolina, potatoe etc

printers nearly always use too much powder but even so the cost is minimal for a stack of paper, so why use rubbish, invest in an an ultra-low dust product which will save time in press cleaning and give trouble free running on Weko and Graphix spray guns

 

[printerdw]

Well since we got or new press with an IR dryier I use very little powder now and useing 20 micron powder works great.