Term resistant Backer Rod DMV+ termCORD to use with hot applied sealants
Avoids the 3-way bonding
Specially manufactured for hot applied sealants
Forms the correct hour glass shape of the sealant
Rot resistant, compressible and flexible
White, for better recognition during night shifts
– Closed cell, cross-linked PE foam
– Density between 20 kg/m³ and 35 kg/m³
– Moisture absorption <1 vol.% according ISO 62
– Temperature service range -40°C and short term 200°C
Available diameters and packing:
|rod diameter||recommended joint width||Length lm/Box|
|10 mm||6 – 8 mm||1700 m|
|13 mm||8 – 10 mm||1100 m|
|15 mm||10 – 12 mm||780 m|
|19 mm||12 – 15 mm||500 m|
|22 mm||15 – 18 mm||360 m|
|25 mm||18 – 20 mm||280 m|
|32 mm||20 – 25 mm||190 m|
Proper size selection is important as it controls the depth of the sealant bead. The backer rod must be oversized by 25 to 30% to fit tightly into the joint and function as a bondbreaker to prevent back-side adhesion of the sealant.
The backer rod should be installed with a special designed insertion tool, to avoid any kind of damage of the rod during the installation.
Prior to the placing of the backer rod, clean all joints as per the sealant and the primer manufacturer‘s recommandations.
The application of cold applied sealants shall not begin if there is any sign of moisture on the surface or in the joint.
All surfaces must be clean, dry and free of all foreign matters.
Road construction and high-ways
Ready to use concrete elements
Bridge construction and car parks