may include foam reduction or foam control agents such as foammaker u2122 bubble breaker u2122 and 1 and 2 octanol antistatic compounds preferably water soluble antistatics such as larostat 264a made by mazer chemicals may be added to prevent dust from being drawn to the surface the mask composition may also include sequesterants typically less than 1 the coating solutions are made by conventional means which typically comprise mixing the components of the masking material at substantially atmospheric pressure so as to form a homogeneous solution heat may be applied to speed preparation of the coating solution after formation of the homogeneous solution the ph may be adjusted as discussed above in a particularly preferred embodiment the ph is adjusted to ph 7 9 by the addition of sodium hydroxide or other ph adjusting reagents the coating compositions are conveniently formulated as aqueous water based solutions or emulsions the aqueous formulation generally lacks toxic solvents and is therefore relatively easy to handle and work with and is readily disposed of without adverse environmental impact thus it is generally desirable to avoid the inclusion of any reagents e g oil organic solvents etc that impose difficulties in handling and or disposal preferred coating compositions are therefore aqueous compositions substantially or completely oil free and free of organic solvents the coating masking material is applied by one.