This is the Message I recieved after a conversation with Neil at Corbond. Heatlok is also sending information. After researching the permeability of the closed cell foams and combining that information with the manufacturers information plus Nolo's field experience I feel confident with the application. A good knowledgeable applicator is as important as the product for a satisfactory installation.
"CORBOND III will work well in this application. It will not decay underground. I have hundreds of lineal ft underground on my own property around waste lines under driveways, some of which dates back over 25 years. We dug some out to tap into a waste line several years ago. It was perfect. If the temps do not exceed 200 you will be ok.
Caution should be exercised during application to limit lift thickness (max 3”) so the core exothermic temp does not get elevated to where the Pex tubing is damaged. Spray a pad in the trench in lifts to your desired thickness and width, lay in and spray attach the Pex at short intervals. Then spray about an inch over the rest of the tubing. When this has cooled to ambient temp, add lifts of CORBOND to the desired finish thickness – both width and height. Be careful as the tendency is to have holidays under the pipe, and or where the tube may curl up or run close to the trench wall etc. Please call at 888-949-9089 if there are further questions.
Neal Ganser
Corbond Corp"
"CORBOND III will work well in this application. It will not decay underground. I have hundreds of lineal ft underground on my own property around waste lines under driveways, some of which dates back over 25 years. We dug some out to tap into a waste line several years ago. It was perfect. If the temps do not exceed 200 you will be ok.
Caution should be exercised during application to limit lift thickness (max 3”) so the core exothermic temp does not get elevated to where the Pex tubing is damaged. Spray a pad in the trench in lifts to your desired thickness and width, lay in and spray attach the Pex at short intervals. Then spray about an inch over the rest of the tubing. When this has cooled to ambient temp, add lifts of CORBOND to the desired finish thickness – both width and height. Be careful as the tendency is to have holidays under the pipe, and or where the tube may curl up or run close to the trench wall etc. Please call at 888-949-9089 if there are further questions.
Neal Ganser
Corbond Corp"
