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[
SPLICING AND REPAIRABILITY
]
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Pathway Flexon and Ultrachem materials can be easily spliced in the field during expansion joint installation. These
materials are easily repaired in the event of damage after installation. The “Thermowelding” characteristics of these
materials provide splicing and repair material strength equal to or greater than the basic material strength.
FLEXSPAN HEAT SEAL IRON PERMANENTLY REPAIRABLE
Lightweight and portable for use at any plant location. Unlike fluoroelastomer materials, Ultrachem and Flexon
Available for rent or purchase. May be operated easily expansion joint systems are repairable over the life of the
by plant personnel. product. Repairable not just with a mechanical patch but
repairable without degrading the tensile strength of the
REQUIRED joint. This contrasts with the inability to effectively
MATERIALS revulcanize fluoroelastomer products after installation
Heat seal film is required and because of the “aging” inherent with fluoroelastomer
placed between the ends of the and other rubber products.
joint to be spliced. No chemical
prep of the belt or mechanical MECHANICAL
abrasion is required prior to DAMAGE
splicing. This expansion joint at a fossil fired
plant was mechanically damaged
SPLICE accidentally. Normally the joint
VERIFICATION would have to be replaced at the
Sample material and splicing next outage or shutdown
film is supplied to allow depending on the extent of damage.
verification of iron operation at
the joint location in your plant TEAR PROPAGATION
to assure leak proof splices. Ultrachem materials have greater
tensile strength and will not
SPLICING YOUR continue to propagate holes or
EXPANSION tears like rubber materials. This
JOINT BELT benefit allows you to run longer
Joints may be spliced in the without the damage getting worse
vertical or horizontal positions. or generating catastrophic failure of the joint.
The temperatures of the heat
seal iron is electonically HEAT SEAL REPAIR
controlled and heat loss is Using the procedures above, the
minimized with the use of joint may be repaired and will
an insulated back up board. retain original tensile strengths.
No special preparation is
EASY TO necessary. This repair can be
WORK WITH easily made by plant personnel.
No special tools or skills are
required to perform the splice. FIELD
The Installation Manual REPAIRABILITY
completely details the The ability to repair your
procedure. expansion joint materials with
plant personnel gives the plant
THE COMPLETED SPLICE more independence to solve its
In minutes the splice is completed. Compared to hours own problems. Expansion joint
spent vulcanizing rubber expansion joint materials, not to replacement and repairs can now be performed in a
mention the cost on the required factory technician, our fraction of the time and expense normally allocated for
products offers a practical and economic solution. fluoroelastomer repairs.
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