FST™ closed-cell duct sealant provides superior pressure-blocking power in the toughest environments. It stops methane and other gases to keep electrical systems intact. FST™ Duct Sealant is stronger, more chemically resistant, and cures 50 times faster than open-cell aerosol foams. The FST™ seal has excellent adhesion to PVC, rigid steel, EMT, IMC, fiberglass and polyethylene conduits. FST™ is a proven solution that has been used for years to protect switchgear, panels, riser poles, combiner boxes, meters, and all types of electrical and telecommunication apparatus. It creates a semi-permanent seal and is reenterable.
A properly constructed FST™ seal is pictured on the left, installed in a transparent tube to show the structure of the seal inside the duct. Damming strips are wrapped around the cables to create a void into which the two-part liquid FST™ mixture is injected. The damming strips help contain the FST™ mixture at the mouth of the duct while it expands and hardens into a strong, resilient seal. The damming strips also separate cables so that the expanding foam can flow around them to prevent leakage between them. Inject the sealant with a high-ratio caulking gun for immediate protection of high-value network assets.
The photos below show some of the field uses for the Polywater® FST™ Foam Duct Sealant.
|Catalog #||Package Description||Units/Case|
|FST-250KIT1||1 - 8.5-oz two-part FST™ Foam Sealant caulking tube (cat# FST-250)
3 - mixing nozzles
4 - 24" foam damming strips (cat# FST-DAM)
1 - 12" abrasive strip
1 - pair disposable gloves
1 - positioning rod for foam dam
1 - pre-treating wipe (cat# HP-P158ID)
1 - resealing cap
1 - instruction sheet
TOOL-250 NOT INCLUDED - SOLD SEPARATELY
|FST-250KIT||Same as FST-250KIT1 in a case of 6||6|
|FST-250||1 - 8.5-oz two-part FST™ Foam Sealant caulking tube
1 - mixing nozzle
1- resealing cap
|MXR-30T-10||10-pack of mixing nozzles for FST-250||1|
|TOOL-250||1 - high-ratio caulking gun||1|
|FST-DAM||1 - 24" foam damming strip||24|