Product Description
Backerseal provides watertight secondary sealing in applications:
1) behind conventionally installed liquid sealant and backer-rod or, 2) behind
directly field-applied low-modulus liquid sealants.
- When installed with
directly-applied liquid sealant, a binary sealant system (combination of two
technologies with performance that exceeds that of the individual components) is
created.
- Backerseal consists of
P foam infused with EMSEAL’s microshpere-modified, hydrophobic
acrylic.
- Backerseal is supplied
in precompressed rolls in widths from 3 mm (1/8”) up to 25mm (1 inch) and in
shrink-wrapped lengths (sticks) in widths from 30mm (1 1/4 inches) up to 250 mm
(10-inches).
- Supplied precompressed
to less than the joint size with a mounting adhesive on one side. It is
inserted into the joint and adhered to one joint-face.
- It then expands to seal
the joint.
- Sealing against the
substrate is achieved through a combination of the pressure-sensitive adhesive
impregnation, and backpressure from the expanding foam.
Sika EMSEAL data sheetshttps://nzl.sika.com/content/dam/dms/nz01/7/emseal-pds-backerseal-tech-data-wall-joint-sealant-emseal.pdf