Casting tool marks, bite marks and gun
marks is very important that they are photographed with a scale
inserted prior to casting. With bite marks use an ABFO-2 scale.
It is best to use side lighting to enhance the marks. When casting
tool marks, bite marks and
any type of impressions of this type it is best to use brown
Accutrans to cast with. Tool
mark examiners prefer the color
brown over any other colors
that are available. The reason is the contrast that it provides.
tool marks or bit marks use a standard mixing tip
or the spreader tip to apply
the Accutrans directly to the
surface to be cast. Be sure
to spread it around to eliminate
air bubbles that might be present in the
casting material when the product
is put down side by side an air pocket will be formed and this
has to be eliminated by moving the product around using the
tip. This will also help pushing it down into the tool and bite
marks. You can also apply the brown Accutrans to the tool marks
or bite marks using a tongue depressor or spatula to spread
the product over the area to be cast.
Casting Tool Marks (Click here to view video demo)
Casting Bite Marks
Casting Gun Barrel
gun barrel is a simple process as using the Accutrans process
whether it is a rifle barrel revolver barrel or semiautomatic
handgun barrel. If someone has tried to change the interior
of the barrel by putting steel down the barrel to change or
scratch the inside of the gun barrel making comparison more
difficult, this will be able to show what they’ve done.
Use the Accutrans
gun with brown Accutrans products
and a standard mixing tip. Place your
index finger at the rear of the
barrel so you will be able
to feel the product when it comes out of the barrel when it
is full. Do
not block the air flow or completely cover the barrel. Insert
the mixing tip in the other end
of the barrel and begin putting the product into the barrel.
When the barrel is full gradually remove the tip and keep applying
the product at the end of the barrel to make a small ball which
will be used to grab and remove the Accutrans from the gun barrel.
At this point you need to be patient and make sure it is thoroughly
setup before you try to pull it out of the barrel.
Note: If you try to soon it will break off, and if this happens
apply more of the brown Accutrans to the area broke off and it
will attach to the product left inside of the barrel.
When it is
fully set up grab the ball on the end and began pulling it
feel it starting to release,
keep pulling with constant pressure and it will come out. You
are now able to see the lands and grooves in the barrel.