Supplier’s information
Page 242 OmniTrax Product Guide
roadway crossing, the use of a pneumatic caulking gun using quart cartridges may be preferred. A
source of supply for caulking, sausage and pneumatic guns, and a part number for the pneumatic
type is:
Albion Model 702-G01
Albion Engineering
Philadelphia, PA
Tel. (215) 535-3476
This gun requires an external air supply, such as the compressor used to clean out the slots.
For very large jobs, sealant pumping equipment may be required. A source of supply is:
Graco Inc.
Minneapolis, MN
Tel. (612) 378-6000
Backer rod
This is a closed-cell polyethylene rod used as a slot filler and separator from the cable, and also as
a bond breaker for the sealant. It can usually be purchased locally in long rolls from building supply
companies or via the local sealant supplier. Select backer rod with a slightly greater OD than the
width of the slots i.e., 3 to 6 mm (1/8 to 1/4 in.) wider than the slots.
Sources of supply, if local sources are not available, include:
Concrete sealers
In some cases the user might want to provide a moisture sealer to the asphalt or concrete in order
to extend its life. If hydrocarbon-based materials (i.e., containing petroleum distillate) are
employed it is possible to damage the sealant or cable. Do not use Hydrozo 30 M waterproofing
compound, as it can penetrate the cable and possibly affect operation. Alcohol-based or water-
based materials are preferred from this standpoint, and in any case they should not be applied in
such quantities that they lie in the slot recess and allow direct cable exposure. Considerations are
alcohol carrier materials dry quickly in windy conditions, and water-based materials are affected by
humidity while drying. Some materials and sources of supply are:
Note Consult the manufacturer for detailed information before ordering the
backer rod.
W.R. Meadows
Elgin, IL
Tel. (708) 683-4500
Garvin Construction Products
128 Cambridge Street
Charlestown, MA 02129
Tel. (617) 242-2525
Alcot Plastics
29 Commerce Cres.
Acton, Ont.
Tel. (519) 853-3228
Harry Lowry & Assoc.
11176 Penrose Street
Sun Valley, CA 91352
Tel. (818) 768-4661
Coastal Construction
660 North West 85th St.
Miami, FL
Tel. (305) 757-2121
Smalley & Co.
861 South Jason Street
Denver, CO 80223
Tel. (303) 777-3010
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