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Adhesives

                      Adhesives


The most common adhesives used in the industry are sprays.  There is
a mist spray and a web spray.  Both should be banned by the Government
as unsafe for your health.  Sprays are nasty.  If you believe second
hand smoke is bad for your health, adhesives in your lungs are worse.  They
also make a mess of your shop, slow production, degrade print quality and are
expensive to deal with.

Liquid adhesives that are painted or rolled on the platen avoid most of the problems
with sprays, and most importantly do not end up in your lungs.  However,
the liquid must semi-dry before use, and has a short life before you have to
stop making money printing so you can clean off the old liquid adhesive and
apply a fresh coat.

The best option is Double Tape.  Double Tape is a thin plastic sheet with adhesive
on both sides and then paper on one or both sides.  The paper is removed
from one side, and the Double Tape is applied to the platen.  Then the
other piece of paper is peeled off.  When the adhesive becomes loaded
with lint like any adhesive, then the platen is sprayed heavily with water.  The
screen printer then puts the flat of both hands on the platen and rotates the
hands causing the lint to roll up in little balls.  The lint can then
be dusted off.  Removing the lint keeps the platen smooth for better quality
printing.  The platen can be flash cured, if too wet, to dry the platen.  When
Double Tape is left unattended for a period of time, it may appear to lose
its adhesive quality, but flash curing brings the adhesive quality right back.  Once
the Double Tape has been treated with water to remove the lint, loading and
removing garments becomes faster.  There will be sufficient adhesive
quality to hold the garment in place, but the adhesive will not be nearly as
strong as a new piece of Double Tape or any time a platen is sprayed with adhesive.  Printers
typically report getting about 1200 prints per sheet which makes Double Tape
far more economical than a spray.  Also, Double Tape should be cut down
to a little larger than the image size rather than covering the entire platen.  That
saves money, and avoids fighting adhesives when loading and removing garments.

Sweatshirts and towels are a special case.  Spray adhesives will get in the fabric
and often transfer to the fabric.  Lots of lint comes out of both, and
quickly fills any adhesive making it ineffective.  For those reasons,
both should be secured to the platen with a Sweatsheet.  A Sweatsheet
is a thin aluminum sheet that has been printed with the direction of the grain.  There
are tiny teeth on one side that look like Velcro®, but they are not Velcro®.  The
Sweatsheet is adhered to the platen with an adhesive.  Sweatshirts are
drawn over the Sweatsheet in the direction of the grain.  Once located
where designed for printing, the sweatshirt is pushed against the grain locking
the sweatshirt in place.  Printing is against the grain so the sweatshirt
does not move.  Once printed, the sweatshirt is pulled in the direction
of the grain to unlock the garment.  Then the sweatshirt can be removed
from the platen.  Lint will accumulate in the teeth of the Sweatsheet
quickly, but can be brushed out easily with a lint brush.  The Sweatsheet
avoids putting any adhesive in the air, making a mess of the shop, or spending
any more money on adhesives.  The Sweatsheet is not recommended for T-shirts
or products other than sweatshirts, other forms of fleece that can be printed
and towels.

All products are 100% Made in USA, except mesh. No mesh is made in USA. There is NO Odor from any products we sell, or risk to children and pets. All products are green. The greatest health hazard is spray adhesive, but we offer Double Tape which eliminates spray adhesive, costs less, produces better print quality and allows you to print faster. We can tell you how to reduce your electric bill, sales taxes and more. We will help you improve your business.