Heat the area of the item you wish to treat using a hair dryer or heat gun (on low). Apply thin coat of MODERN COSMO in even strokes, using a 1-inch natural bristle brush. Multiple coats can be applied. Avoid wood and plastic as MODERN COSMO MAY discolour. QUICKLY wipe off rubber surfaces as the product can degrade rubber if left on too long.
For firearm barrels, attach bore brush to cleaning rod, liberally dip in product and push through, from bore to muzzle. Remove brush and pull rod back through. Yes, obviously, remove the bolt.
Reattach brush on rod and cover with patch. Brush some Modern Cosmo onto patch and push rod back through. This will force product into the rifling. NEVER pull the brush back through. Apply product to brush again and run two more times, heating and rotating the barrel between passes. Inspect and repeat as necessary.
For longer barrels, this is where that irrigation syringe comes in handy. Draw some melted product into the syringe and gently release into the barrel from the muzzle before you push the rod through from the bore.
You can use MODERN COSMO to “cap” barrels and chambers. Pinch a small amount of non-melted MODERN COSMO and roll into a little ball, and press into the chamber. Repeat for the muzzle.
For pesky crevices and hard to reach areas, such as bolts, heat area, brush product on and then apply heat to coax product in.
Wipe off excess product, unless you enjoy the aesthetic. Allow to dry.
Wrap in wax paper and store item.