Instructions / Assembly

Backer Rod
Cracks over 1” in depth and over 3/4” in width shall be pre-filled
with bituminous treated hemp, jute roving or a non-shrinking, non-
absorbent material with a melting point higher than sealant
temperature. Backer rod should be 25% wider than crack so that it
does not slip down or float out of the crack after installation of
sealant.
Melting Equipment
Crack-Rite™ Boxless DF may be melted in direct fired or oil
jacketed kettles equipped with thermometers to control sealant
temperature within the recommended application range. The sealant
must be agitated continuously during the melting and pouring
process. Crack-Rite™ Boxless DF can be reheated several times to
the application temperature range of 325° - 400°F, but it is
recommended to add new blocks prior to the reheat process.
Material Temperature Recommendations
Crack-Rite™ Boxless DF will flow readily when heated to the
following temperature range:
Recommended pouring temperature 325-400°F
Safe heating temperature 400°F (205°C)
Maximum heating temperature 550°F (274°C)
It is not recommended to heat sealant to more than 20°F below
the safe heating temperature.
Material Limitations
Crack-Rite™ Boxless DF may experience degradation if sealant is
heated for a long period of time over 550°F. Sealant will either
become very thin or it will gel and become stringy. Degraded
material should be removed immediately from melter and discarded
in accordance with all Federal, State and Local Regulations. No
crack sealing material shall be applied in wet cracks or where frost,
snow or ice is present. The pavement temperature shall be above
40°F (4°C) at the time of installation.
Important: Application of sealant to damp or improperly cleaned
surfaces may result in a low degree of adhesion which can cause the
sealant to pull out of the cracks/joints.
Method of Application
Crack-Rite™ Boxless DF is a low viscosity, self-leveling sealant
that can be applied by a pressure feed wand system, wheeled pour-
pots, (complete with rubber shoe and control valve) or hand-held
pour-pots. Joint sealant shall be applied uniformly from bottom to
top and shall be installed without formation of entrapped air or
voids. Cracks and joints should be filled full and tight. To minimize
tracking by vehicle tires and/or plow abrasion, sealant height should
not exceed 1/8” above the pavement. Unless otherwise directed, the
cracks shall be filled to refusal or not more than 1/8” below
pavement surface. Care should be taken to minimize or eliminate
lumps or unnecessary surplus of sealant on pavement.
Cure Time
Crack-Rite™ Boxless DF will exhibit no tracking within 20
minutes after being installed at 77°F ambient temperature. If vehicle
traffic must pass over crack sealant prior to curing, Boiler Slag,
Black Beauty or equivalent should be applied to crack/joint to
minimize tracking.
Packaging and Availability
Crack-Rite™ Boxless DF is packaged in 25lb. cubes.
Average Coverage 1/2" x 1/2" Joint Size
Sealant required per 100 lineal feet /11.5 lbs.
Weight per gallon = 9.2 lbs.
Commercial
Industrial
Crack & Joint Sealant
25lb. cube – No more box labor or
disposal! Save time & money
www.daltoncoatings.com, [e-mail]