---
catalog: WEB-I3
catalog_name: Insulating Glass Fabrication Supplies
page: 14
sku_count: 3
skus:
  - "1G877"
  - "F19A"
  - "LT40140"
bases:
  - "1G877"
  - "F19A"
  - "LT40140"
generated_at: "2026-05-21T23:30:08Z"
---

# Insulating Glass Fabrication Supplies -- Page 14

This page features 3 products:

`1G877`, `F19A`, `LT40140`

## Page Content

FHC INSULATING GLASS FABRICATION, SUPPLIES, AND EQUIPMENT
SECTION 2
FHC IG Fabrication Methods
THE GLAZING SUPPLY COMPANY
E X P E R I E N C E  A N D  I N N O V A T I O N
IG12
Bulk Quantities Available
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Muntin Bars
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Enter the Item Number or scan QR code with  
your smartphone for complete product details
FHC Encapsulating Art 
Glass With Super Spacer®
Enhancing the energy efficiency of specialty art glass windows has gained 
popularity through the encapsulation of panels within the air space of an 
insulating glass unit. However, it’s crucial to ensure sufficient clearance 
between the art glass and the outer layers to prevent contact during the 
expansion and contraction of the air space. Equally important is the complete 
curing of all grouting materials used in the art glass fabrication to avoid 
trapping solvents within the unit, which could potentially cause fogging in the 
future. The process of creating insulating glass units of this kind begins with 
the formation of a guide groove in the Super Spacer®. Subsequently, the Super 
Spacer® is securely attached to the art glass panel approximately every two 
or three inches (51 or 76 mm) using an instant adhesive such as our Item No. 
LT40140, with the groove serving as a centering guide. Once this is done, the 
release liner on one side of the Super Spacer® is removed, and the panel is 
centered over the first layer of glass. Afterward, the remaining release liner is 
removed, and the second layer of glass is aligned directly over the first one. 
Finally, the unit is sealed using Hot Melt Butyl or Item No. 1G877 Sealant.
FHC Fabricating 
Muntin Grids
For colonial-style insulating glass units, it’s time to incorporate muntin 
grids into the process. Muntin Bars should be precisely cut to size 
based on the inner measurements of the spacer frame. Just as with the 
fabrication of spacer frames, Muntin Bars should be cut using a fine 
100 to 150 tooth saw blade without the need for oil or coolant. It’s also 
advisable to wear FHC Item No. IGG5L Lint-Free Gloves when handling 
Muntin Bar lengths. Proceed by measuring and marking the points where 
the muntins will intersect. Then, notch each of the muntins using the 
FHC APSSN1 Air Powered Muntin Notcher, along with the appropriate die 
and punch. Once the Muntin Bar grid is securely fitted together, insert 
the suitable Muntin Bar Clips. For larger Muntin Bar grids, you may need 
to utilize internal muntin joiners. To connect the spacer frames with the 
Muntin Bar Clips, drill or punch at the connecting points using an electric 
hand drill, drill press. Subsequently, assemble the completed Muntin Bar 
grids into the spacer frame. Prior to sealing the unit with Item No. F19A 
Glass Cleaner, ensure that the Muntin Bars are cleaned. Avoid using 
MEK, alcohol, or similar chemicals for cleaning. Apply primary and/or 
secondary insulating glass sealant following standard procedures.
Art Glass
Air Space


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