SISTA BACKER ROD 3/8 PULG. POR METRO

Waterproof and elastic cylindrical strip of polyethylene foam that is placed inside expansion joints and cracks as backing material.

- Optimizes the use of sealant, as it limits the amount of product applied
- Insulates the bottom of the joint from the negative effects of temperature and humidity variations.
- Ensures that the sealant has the correct shape.
- Prevents the sealant from adhering to a third substrate.
- Easy installation due to its high flexibility and compressibility.
- Inert material physically and chemically compatible with all types of cold-applied sealants.