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Backer rod or backing tape installation
A. Problems: Cohesive failure due to
incorrect backing materials. Lack of
depth consistency.
B. Solutions: Prevent three-sided adhesion.
Use adaptable packing tools to avoid
inconsistent depth of the rod.
Proper installation of backing materials with
packer tool. (SWRI)
Mixing, applying, and tooling
Problems: Improperly mixed sealants will
never cure and so will never provide the
physical properties required. Improper
selection of gun nozzle. Improper
installation. Incorrect tooling.
Solutions: Use proper mixing paddles and
adequate amount of time. Never use
materials beyond their shelf life. Use proper
tools and nozzles, proper tooling to