Pipeline Protection Products, Underground Tapes,
Polyethylene Encasement For Ductile Iron Pipe
Pipe Coatings, Pipe Tapes, Cathodic Protection, Safety Products.




  1. A top plastic sheet formed with an igloo shaped dome and entry tunnel for the lead wire.
  2. A special elastomeric compound in the plastic dome, which is firm enough to resist flow at all normally encountered application and operation temperatures, but soft enough to mold itself around and completely cover the irregular welded profile.
  3. On either side of the dome is a double row of parallel, flexible serrations to assist with conforming abound small diameter pipe.
  4. A base of Royston Tac-Coat, a black unbacked elastomeric tape with exceptional adhesive properties, for bonding firmly to the metal surface, when used with Royston Roybond 747.

What is Royston Handy Cap?

The Royston Handy Cap is a prefabricated assembly specifically designed for Cathodic Protection leads to pipes and tanks. When pressed by hand into position over the anode lead wire weld, it forms a thick, highly resistant electrical insulation seal over the weld, the end of the lead wire and the surrounding area of the pipe or tank.

Construction: Molded plastic cap filled with corrosion resistant compound on a base of thick elastomeric tape.
Application Temperature
Service Temperature
Shelf Life
Plastic Sheet
Sheet Thickness
Plastic Dome
4" X 4"
2.75" x 4" (serrated)
10 mils
1.625 diameter/ 0.8" height
125 mils
2.1 ± 0.4 oz

-20 °F to 120°F
(-29 °C to 49C)

-40 °F to 185 °F
At least one year


Northtown Company - 5202 Argosy Ave., Huntington Beach, CA 92649 - Phone: 714-897-0700 - Fax: 714-897-0600