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How to Make A Stencil

by Alicia Guillette on Mon, Oct 26, 2015

A stencil is an impervious material such as plastic, cardboard, or metal with lettering, a design or a pattern cut out of it. The material is typically made into thin sheets. The thin sheets may be placed on just about any surface or product from wood crates, cardboard boxes and containers to walls, furniture, and decor. After placing the stencil on the surface, a substance such as ink or paint is applied over the design or lettering. The substance “seeps” into the cut out “holes.” Stencils are both the resulting design, lettering or pattern and the intermediate object.

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Red and white stenciled letters
on blue paint
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Black stencils
on yellow paint

The stenciling process can only handle one color of pigment at a time. This means, multicolored designs must be stenciled several times, allowing for drying after each process.

stencil4

Three part stencil: 
1. Red diamond, 2. White graphics, 3. Black numbers

 

#1 A template is used to create an outline for the image

Simple letters and numbers can be punched out on a stencil machine. For custom graphics, custom fonts, and large letters and numbers, images must be converted by software. This allows the images to be interpreted on a plotter in order to cut the stencil.

stencil-punched

Punch style stencil maker

stencil-plotter

Plotter style stencil maker

Because of the nature of stencils, certain images and letters generate islands, which are sections of material that are inside of the cut out holes. To avoid islands, the stencil must contain "bridges" to allow for the middles of letters such as A, a, B, b, D, d, O, o, P, p, Q, q, or R.

PartsOfStencil

#2 Stencil is cut on a material of choice

Material options run the gamut from acetate, Mylar and vinyl to paper, cardboard, plastic, wood and metal. Depending on the material, the stencil may be reused repeatedly in order to rapidly produce the same letters or design. Opting for a reusable stencil is also a great way to save money. It is important to note that in order to be reusable, the stencil must remain intact after a design is produced and the stencil has been removed from the work surface.

#3 Apply pigment

Spray paint is the most common industrial application for stenciling. However, other substances can be used such as ink, paint or pigment powder. Whichever substance you decide to use, proper stencil application technique is critical, as soft edges can appear when the stencil is too far away from the surface underneath. 

stencil1

Example of soft edges 

For a really crisp line, adhesive stencils can be made. Unfortunately, this type of stencil has a short life span. They are single use.

If you liked learning about stencils then you might like this guide

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This post was written by Alicia Guillette

Alicia Guillette, is now the third generation of family involved at Valley Box Company. Starting in 2006, she has taken Valley Box into the digital age by developing a new web presence, implementing enterprise resource management tools and expanding the product line to include material handling equipment.

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