---
catalog: WEB-I3
catalog_name: Insulating Glass Fabrication Supplies
page: 15
sku_count: 2
skus:
  - "CT3003"
  - "P1B210"
bases:
  - "CT"
  - "P1B210"
generated_at: "2026-05-21T23:30:08Z"
---

# Insulating Glass Fabrication Supplies -- Page 15

This page features 2 products:

`CT`, `P1B210`

## Page Content

FHC INSULATING GLASS FABRICATION, SUPPLIES, AND EQUIPMENT
Keyword
Visit fhc-usa.com to search for
Enter the Item Number or scan QR code with  
your smartphone for complete product details
SECTION 2
FHC IG Fabrication Methods
IG13
Bulk Quantities Available
Click to Chat With Us
Capillary Tubes
Visit fhc-usa.com to search for
Enter the Item Number or scan QR code with  
your smartphone for complete product details
Breather Tubes
Primary Seal 
Application
If you plan to transport the unit from lower elevations 
to altitudes of 5,000 feet or more (or vice versa), 
it’s important to follow these steps in the production 
process: Install FHC Item No. CT3003 Breather Tubes 
(see page IG32) into the spacer frame. Create a small 
hole in the spacer frame using an awl, center punch, nail, 
or drill. Insert the Breather Tube into the hole and apply 
sealant around the base of the tube.
Apply FHC Item No. P1B210 Polyisobutylene (PIB) 
Primary Seal to the spacer. PIB Tape is available in strips 
on waxed paper rolls. Remove the release paper from the 
underside of the PIB strip, then place the PIB strip onto 
one side of the spacer frame. Note that dual-seal spacers 
have a groove designed to accommodate the PIB strip. 
Press the PIB strip into the corners to prevent moisture 
infiltration. Only use one PIB strip at a time. Position the 
second clean glass pane on top of the spacer, ensuring 
that the corners are squared and evenly aligned. Place 
weights over the spacer to compress the PIB strip and 
ensure a secure seal.
W.T
Breather Tube
Assure Even Contact 
of PIB Tape to One 
Side of Unit
Assure Even Contact 
of PIB Tape to Other 
Side of Unit
Compress to Assure 
Good Seal
Compress
 PIB
PIB Tape
Allow Adequate 
Set-back for Sealant
Spacer
FRAMELESS HARDWARE COMPANY LLC
2323 Firestone Blvd. South Gate, CA 90280 
Toll Free: (888) 295-4531  |  Direct: (323) 968-2031
Fax: (323) 336-8307  | fhc-usa.com