Structural Glazing

ARBO® SST Structural Spacer Tape is a high-performance, preformed mastic strip specially engineered for use in structural glazing systems. Designed to provide consistent spacing and short-term bonding between insulated glass (IG) units and structural frames, ARBO SST ensures precision, reliability, and ease of installation in modern glazing assemblies.

• Precision Spacing for Silicone Bonding
  ARBO SST maintains the exact gap required for structural silicone application, ensuring a clean, strong and professional finish in frameless glass façades and curtain wall systems.

• High Load Support During Assembly
  Manufactured from load-bearing PVC foam, it delivers excellent short-term adhesion to secure glass panels during the critical curing period of structural silicones.

• Durability & Longevity
  With a service life exceeding 20 years, and operating effectively across temperatures from –30°C to +60°C, ARBO SST is built to perform in tough conditions.

• Superior Technical Properties
  Featuring a tensile strength of over 1000 KPa, elongation at break over 160%, and a thermal conductivity of just 0.052 W/mK, this tape is engineered for structural integrity and energy efficiency.

• Easy & Clean Application
  Supplied with a protective liner and available in a range of thicknesses and widths, the tape is simple to apply—just unwind, press, and position for instant results.

• Fully Compatible with Ultraglaze Structural Silicone
  Ensures optimal performance when used in conjunction with ARBO’s Ultraglaze silicone products, making it an ideal part of a complete structural glazing solution.

Many ARBO sealants comply with relevant British Standards (BS EN ISO 11600, BS 5889) and offer additional assurances for use in construction. If you need a silicone sealant that complies with specific standards, speak to our team and they can suggest the best product for you.

Still not sure which product is right for your application? Talk to our expert team! We can provide advice on the right sealant for the type of surface, adhesion and elasticity required.

Important Information

The information is given in good faith and based on results gained from experience and tests. However, all recommendations or suggestions are made without guarantee since the conditions of use are beyond our control.

It is the user and specifier’s responsibility to ensure ARBO product is suitable for the intended use: consult ARBO Technical Services for specific advice. Goods are supplied subject to the Company’s terms and conditions of sales, a copy of which is available on request.