Flattener is a liquid product with silica flattener added. It is used to reduce the gloss of Poly-Tone, Enamel, Ranthane and Aero-Thane. Adding Flattener in increasing amounts can result in semi-gloss or full military flat, depending upon the percentage added. Flattening is an inexact science; it is always best to spray a sample then let it dry to insure you are achieving the desired flatness.
Quarts and pints.
Four years unopened.
Flattener must be stirred and shaken regularly to in-sure that all the silica is in suspension.
FIRST: Get bigger containers for mixing. Since Flattener always increases the volume of the paint, if you plan on flattening a whole quart or gallon at one time, you will need empty cans or containers big enough to hold the flattened product. For example, if you are going to flatten a quart of Aero-Thane, you will need an empty gallon can with a lid if you plan to store it after flattening.
SECOND: Always do a test spray to insure you are getting the level of flatness you desire. Flatten a small amount, spray, and let it dry. Do this before you commit to painting your airplane. Adjust the amount of Flattener if necessary. Again, flattening is not an exact science. TEST FIRST!
TO FLATTEN POLY-TONE OR ENAMEL TO SEMI GLOSS: Mix four parts paint with one part Flattener (eight fluid ounces of Flattener per quart of paint.) Thin normally.
TO FLATTEN POLY-TONE OR ENAMEL TO FULL FLAT: Mix two parts paint with one part Flattener. (sixteen fluid ounces of Flattener per quart of paint.) Thin normally.
TO FLATTEN AERO-THANE OR RANTHANE TO SEMI-GLOSS:
NOTE: YOU WILL NEED EXTRA CATALYST. Since the flattened paint yields more sprayable product, you will need some extra catalyst. For each can of Aero-Thane or Ranthane, get an extra companion unit of catalyst. For example, for Ranthane, each flattened gallon to be catalyzed will require an extra quart.