CRL Edgetech Super Spacer® Black 1/4" x 3/16" 66ft Window/IGU Spacer

• Allows simultaneous production of regular and special-shaped insulating glass units
• Save production time — no desiccant beads to add or corner keys to assemble
• Available in gray or black; rolls are 66' (20.1 m) long

CRL Edgetech Super Spacer® is a high-performance silicone foam insulating glass spacer designed to reduce perimeter condensation and lower overall window heat loss. The flexible, UV-resistant silicone foam accommodates glass bowing and thermal movement, making it ideal for curved, odd-shaped, triple-glazed, and art-glass insulating glass (IG) units. The spacer’s open-cell permeability enables fast moisture pick-up, while a multilayer barrier film minimizes moisture vapor transmission and inert gas loss.

The Super Spacer® system eliminates the need for desiccant beads and corner keys—streamlining fabrication of custom and curved IG units. NOTE: Super Spacer® must be used with an approved edge sealant; CRL recommends CRL Hot Melt Butyl or CRL 877 Super Spacer Sealant.

Durability & UV Resistance: UV-stable silicone prevents spacer degradation for long-term performance in exterior insulating glass applications.

Product Warning:

Always wear proper protective safety gear when working with and handling glass.


SKU: SS1431666BL — Order Super Spacer® rolls for faster fabrication of custom insulating glass units today.