TL-0005 — Adhesion Compatibility of PERM-A-BARRIER® Liquid with Sealants and Caulks Technical Letter (US Version)
Frequently during the design or implementation of an assembly, the designer or contractor will need to select a sealant or caulk that is compatible with PERM-A-BARRIER® Liquid.
PERM-A-BARRIER® Liquid is chemically compatible with all of the following materials with the noted degree of adhesion. Other materials not listed may be compatible but were not tested.
|Material1||Over PERM-A-BARRIER® Liquid||Under PERM-A-BARRIER® Liquid2|
|2 pt. Polysulfide||✔✔✔||✔✔✔|
|1 pt. PU||✔✔✔||✔✔|
|Acrylic + Silicone||✔✔||✔|
|2 Pt. PU||✔||✔✔|
|BITUTHENE® Liquid Membrane||✔✔✔||✔✔|
✔✔✔ Excellent Adhesion
✔✔ Good Adhesion
✔ Moderate Adhesion X Low Adhesion
1Adhesion results with individual caulks and sealants may vary. It is recommended that particular products be pre-tested prior to full application.
2The materials tested under PERM-A-BARRIER® Liquid were allowed to cure in accordance with their manufacturer’s recommendations prior to application of PERM-A-BARRIER® Liquid.
3GCP Applied Technologies (GCP) has tested the above materials for adhesive and chemical compatibility. GCP can not, however, guarantee the in-place performance of another Manufacturer.
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Last Updated: 2020-01-16