Best Ways to Apply Fluid Film Bulk

For the NAS product, we recommend the use of an undercoating gun. Here is a link to the bottle and gun we tested from Eastwood, which was very cost effective and worked well.

We have also found that standard airless paint spraying equipment will apply Fluid Film well, as long as it is has the ability to spray latex paint without thinning. Here is a link to a Wagner Paint Crew Sprayer, which was also tested and passed with flying colors.

Fluid Film could also be brushed or rolled on, just like you would with a paint.

Proper tip size is important when spraying Fluid Film. In general, the type of material sprayed determines the airless spray tip size. Since Fluid Film is about the viscosity of a latex house paint, a similar tip size is recommended.

There are 3 numbers used to describe a tip size. For example, if a tip size is 515, those numbers refer to both the fan size and the orifice size.

The fan size of a 515 will be 10 inches wide, if sprayed one foot from the surface being sprayed. The first number is always ½ the actual fan width. The last 2 numbers refer to the actual size of the orifice. These numbers represent thousandths of an inch, example 515 is .015 inches.

With a constant fan width, a larger orifice size will apply more paint. For example, a 517 would have an orifice of .017 and would apply more paint than a 515. We recommend a tip size of 313 - 515 for applying bulk NAS Fluid Film.