DSP-100 User Manual
Page 17 of 25
DSP100_MAN_A
wire at the bottom of the saw slot allows the loop sealant to provide the maximum amount of protection possible
from foreign object penetration. Never use a continuous piece of backer rod over the loop, as this would prevent
the loop sealant from encapsulating the loop wire.
The loop sealant used should be appropriate for the roadway surface that was cut. Generally, epoxy or polyester
based sealants are used for concrete surfaces and polyester or urethane based sealants are used for asphalt
surfaces. However, these are not hard guidelines and specific circumstances will determine which type of sealant
should be used.
Once the loop wire leaves the saw slot it should be twisted at least three times per foot. More is better. The
twists should be kept tight to be most effective in reducing the effects of electrical interference.
