Home Raceway, Duct, Conduit Conduit Conduit Accessories Foam Duct Sealant
American Polywater® FST™ Foam Duct Sealant
Protect Your Cable Runs with Closed-Cell Foam
![]()
Close Window
American Polywater FST Foam Duct Sealant
This requires one or more of the following: javascript enabled, Flash Video Player, and Quicktime or Windows Media Player |
Running cable run in a hostile environment is no easy task. Sometimes conduit, no matter how rigid, is simply not enough protection for your cables. Water, gas, and even rodents can get into the conduit and damage your wires if the conduit is not properly sealed. FST Foam Duct Sealant plays a key role in such applications by completely sealing conduit, equipping it to handle events that most open-cell canned foams can't protect against. |
- Great adhesion to metals, plastics and, PVC, for a firm grip and tight seal
- Easy to remove in case the need for a new cable run arises
- 8.5 oz tube works with a regular caulking gun for easy application
- Foam tolerates cable movement, allowing for removals if necessary
- Quickly expands and cures even in the presence of water, reducing application time
- Once cured, foam is strong, resilient and chemically resistant
- Made in the USA

FST-250KIT includes:
- (1) 8.5-oz Two-Part Foam Sealant, caulking tube style (FST-250)
- (4) 24" Foam Damming Strips (FST-DAM)
- 3 Mixing Nozzles
- 1 Pair Disposable Gloves
- 1 Positioning Rod for foam dam
- 1 Pre-Treating Wipe (HP-P158ID)
- 1 Resealing Cap
- 1 Instruction Sheet
Foam Duct Sealant Specifications (PDF) ![]()
| Cured Properties | |
|---|---|
| Appearance | Light yellow color with small, even cells |
| Closed Cell Percentage | 98% |
| Density | 6 lbs/cubic ft. |
| Compressive Strength (ASTM D1691) | 330 psi |
| Tensile Strength (ASTM 1623) | 270 psi |
| Flexural Strength (ASTM D790) | 460 psi |
| Seal Strength Water | 40 feet intermittent - 15 feet continuous |
| Seal Strength Air | >5 psi |
CURE RATE - Reaction Time (minutes)
| MATERIAL | 40° F (4° C) | 70° F (21° C) |
| Foaming, Expansion Complete | 8 - 9 minutes | 4 - 5 minutes |
| Hard, Non-Sticky Skin Formation | 15 - 18 minutes | 7 - 9 minutes |
| PART # | DESCRIPTION | PRICE |
| AP-FST-250 | FST Duct Sealant 8.5 oz Caulking Tube Style | |
| AP-FST-250KIT | FST Duct Sealant 8.5 oz Caulking Tube Style - KIT | |
| Accessories | ||
| AP-FST-DAM | 24" Foam Damming Strip | |
| AP-HP-P158ID | Conduit Pre-Treating Cleaning Wipe | |
MANUALS & USER GUIDES -
- Foam Duct Sealant Installation Instructions (PDF)

- Foam Duct Sealant 250 KIT Brochure (PDF)

- Foam Duct Sealant Brochure (PDF)

- Foam Duct Sealant Specifications (PDF)

RELATED ARTICLES -
- The Facts on American Wire Gauge (AWG)
- Residential Network Installations
- What is Plenum Cable, and When Should I Use It?
- What is the Difference Between Cable Shielding and Insulation?
- Key Elements for Cable Installation Success
- Wire Wrapping Technology




Facebook Comments