In this video training tutorial, 3M demonstrates to prepare a surface for texture coatings, how to apply texture coatings, and how to apply internial and externial corrosion protection.

http://www.youtube.com/watch?v=nc0xtKe9JwI

As demonstrated in the video, it is very important to properly clean the surface before applying the coatings.  The video also demonstrates using the 3M foam masking tape when a softer edge is required.  Once the surface is cleaned, sanded, and masked, the coatings can be applied.

For a step-by-step process PDF, click 3M SOP Texture and Corrosion Protection