# My first SMT stencil

#### cmartinez

Joined Jan 17, 2007
7,404

You mentioned you've seen people make SMT stencils out of soda cans, and so I looked around using those keywords. And sure enough, I found a youtube video describing that technique and more.

#### geekoftheweek

Joined Oct 6, 2013
692
Thanks for sharing!! I haven't tried stencils yet, but have found HP Premium Presentation paper works good for PCBs. I does leave fibers behind that need to soak to get them to rub off between traces, but otherwise I've never had a problem due to the paper itself.

#### jpanhalt

Joined Jan 18, 2008
11,088
Here's an little background. A few weeks ago out of curiosity, I searched on what alloy was used for kitchen/Reynolds aluminum foil.

Aluminum foil is made from an aluminum alloy which contains between 92 and 99 percent aluminum. Usually between 0.00017 and 0.0059 inches thick, foil is produced in many widths and strengths for literally hundreds of applications. ...
Every source I checked had pretty much the same blurb. However, I stumbled on a site that mentioned 1235 and on further searching for that alloy specifically, it is said to be the most common alloy used for aluminum foil. It is 99.35% aluminum , 0.05% Mn, 0.06% Ti, and 0.65 % Si or Fe. Those add to more than 100% and are the maximum amounts of each it can contain. 36 gauge aluminum is about 0.005" thick.