3M™ VHB™ Structural Glazing Tape B23F

Available Sizes

Property

Values

Attribute Modi er

Standard Roll Length

32.9 m

36 yd

Standard Width

15, 20, 25, 30 mm

1/2, 5/8, 3/4, 7/8, 1, 1-1/8, 1-1/4 in

Normal Slitting Tolerance

±0.8 mm

±1/32 in

Core Size

76.2 mm

3 in

ID

Design Guidelines

Note: For tape area calculations the following guidelines can be used. Each application should be reviewed by a 3M Application Engineer.

Dynamic Loads:

For dynamic tensile or shear loads, such as wind loads, a design strength of 12 lb/in² (85 kPa) is used for 3M™ VHB™ Structural Glazing Tapes. This design strength

guideline provides a safety factor of >5 and was established based on material property testing as well as ASTM dynamic load testing for curtain wall applications.

Static Loads:

For static tensile or shear loads, such as dead weight loads with no mechanical support, snow loads and other long-term loads, a design strength of 0.25 lb/in² (1.7 kPa)

is used for 3M™ VHB™ Structural Glazing Tapes. This means 4 in² of tape per 1 lb load (60 cm² of tape per 1 kg load) should be used to support constant stress loads.

This guideline provides a safety factor of >5. Dead load support is required for glass panel bonding in most structural glazing applications. Note: Static load and

dynamic load calculations should be performed on unsupported dead load structural glazing applications. The calculation resulting in the wider tape width should be

used as the appropriate tape width for the speci c application.

Di erential Movement:

3M™ VHB™ Structural Glazing Tapes can tolerate shear movement up to 3 times its original thickness (300% shear strain). This means 0.090 in (2.3 mm) thick tapes

can tolerate shear strain up to 0.27 in (6.9 mm).

Force/Stress:

In general, when designing with 3M™ VHB™ Structural Glazing Tapes, forces acting on the tape should consist of either shear or tensile type stress loads. This allows

the stress or force to be applied over the entire tape area. Applications placing cleavage or peel type stress on the tape should be avoided as this will place the stress

on the leading edge of the peel or cleaving.