SBSFlashings & Penetrations
SOPRAMASTIC BLOCKS
SOPRAMASTIC BLOCKS are the premoulded polyester blocks in the SOPRAMASTIC BLOCK system. They form details around penetrations. Assembly must use the mastics and substrate conditions specified by SOPREMA to create the sealing system as designed.
Let’s discuss this productThe specifications.
- Manufacturer
- SOPREMA
- Type
- Accessory
The documentation.
Refer to official documents for dimensions, installation and system requirements.
TDS - SOPRAMASTIC BLOCKSBR - SOPRAMASTIC BLOCKLC - Leed Index CertificationOfficial product page — SOPREMA
Manufacturer documentation takes precedence for design and installation.



