---
catalog: WEB-I3
catalog_name: Insulating Glass Fabrication Supplies
page: 17
sku_count: 1
skus:
  - "FHC96"
bases:
  - "FHC9"
generated_at: "2026-05-21T23:30:08Z"
---

# Insulating Glass Fabrication Supplies -- Page 17

This page features 1 products:

`FHC9`

## Page Content

FHC INSULATING GLASS FABRICATION, SUPPLIES, AND EQUIPMENT
SECTION 2
FHC IG Fabrication Methods
IG15
Bulk Quantities Available
Click to Chat With Us
IG Kits
Visit fhc-usa.com to search for
Enter the Item Number or scan QR code with  
your smartphone for complete product details
When working with bulk sealant or hot 
melt extruder gun, it’s crucial to follow 
these steps:
Heating and Preparation:
Ensure that the gun and sealant 
are heated to the manufacturer’s 
recommended specifications. Allow 
sufficient time for this process. 
Clamping Units:
To ensure a tight seal, clamp the glass 
units on all sides. You can use Spring 
Clamps with vinyl-coated jaws for this 
purpose. 
If you’re sealing multiple units, you can 
stack them with separation. For units 
of different sizes, use wood blocks or 
paper between them. Place wood blocks 
approximately 1" from the edge and 4" 
from the ends. Start with the largest unit 
at the bottom. When stacking larger units, 
limit the stack to a maximum of 15 units.
Bulk Hot Extruder Gun Application: 
Load the sealant into the tank and wait for 
it to completely melt. Apply it to the edges 
of the unit. Ensure that enough sealant is 
applied to penetrate into the shoulders of 
the spacer to create a proper seal. Avoid 
using so much sealant that it displaces the 
spacer. Focus on applying extra sealant to 
the corners, which are the most vulnerable 
areas of the unit. Remove excess sealant. 
Ensure that the sealant completely fills the 
back-set and is flush with the glass edges.
Hot Melt  
Butyl Method
Glass Panels
Desiccant
Spacer
Secondary 
Sealant
Primary Sealant
(PIB)
Pane Interspace
(Filled with Gas)
Sealant to Flush 
to the Edge of 
the Glass
Check for Newton Ring:
Inspect the bottom units of the stack for a “Newton 
Ring” effect in the center of the unit. This occurs when 
two pieces of glass are in contact.
If you observe a Newton Ring, flip the affected units 
upright and repair them before transport to prevent 
permanent rub marks.
Following these steps will help ensure a proper seal 
and the longevity of your insulating glass units using 
FHC sealant.
ITEM NO. FHC96
(See Page IG31)
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