Different methods for rivet applications on tough surfaces
By Rob Ivers
Rob Ivers owns Rob Ivers Inc. (Raymore, MO), a vinyl-graphics training company. He’s taught vinyl-graphics installation since 1993.
Applying vinyl over standard trailer or box-truck rivets is relatively easy. Although there are many rivet types and sizes, standard rivets are characteristically small with smooth tops. However, some varieties that cause more headaches.
In this article, I’ll describe techniques for applying vinyl graphics over standard rivets and screws. Using these techniques, you can achieve excellent installations where vinyl conforms to the rivets; air pockets or bubbles don’t exist; and the adhesive adheres fully to the surface. Most importantly, the vinyl can bond with the surface for years.
A good beginning
I’ve installed vinyl over rivets for more than 30 years. I’ve tried every possible technique and tool and perfected my techniques through experimentation; the Professional Decal Application Assn. and most, if not all, vinyl manufacturers endorse them. These first traditional methods will work for any vinyl graphics installed over standard rivets. The second method, which utilizes two great tools, is applicable to digitally printed jobs protected by a vinyl overlaminate. Understanding and mastering both will help your business.
Cleaning will be discussed in greater detail in a future article. Remember, the surface must be cleaned properly and completely dry. Moisture will collect behind the rivets on a damp vehicle. Fluid behind rivets must be removed by heating the rivet heads and surrounding area with a propane torch until all fluid evaporates. Additionally, the vinyl must be applied dry without the use of application fluids or wetting agents.
Tried and true
The following process will work for any type of vinyl graphic intended for use over rivets: die-cut, computer cut, screenprinted, digitally printed, with or without air egress. Personally, I only use cast vinyl. With the exception digitally printed graphics with a vinyl overlaminate, all must be premasked, including applications coated with a liquid laminate.
To position the graphic, hold it in place with masking tape and make some reference marks (positioning will be another future article topic). Squeegee in the same direction as the graphic’s smaller dimension. If the graphic is 4 ft. wide x 8 ft. tall, squeegee horizontally. If the opposite, squeegee vertically.
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