Test Method Intent

Since SS construction techniques can have life safety implications, such as falling glass, to pedestrians and building occupants, it is imperative to use only products that have a performance profile that can withstand the loads imposed on such a system and which can withstand such loads for the duration of the intended service life.

Development of this test method is intended to serve as an enhancement to current performance requirements for SS and to help the industry ascertain that current and new products are sufficiently resilient to withstand years of fatigue imposed on systems by thermal expansion and contraction, or other loads which impose shear.

Sealant

Type

Movement capability, 9?

Cure chemistry

l

2 part

12.5

AUcoxy silicone

2

2 part

12.5

Alkoxy silicone

3

2 part

12.5

Alkoxy silicone

4

2 part

20

Alkoxy silicone

5

I pail

25

Alkoxy silicone

6

1 part

25

Oxime silicone

7

1 part

25

Oxime silicone

8

1 part

50

Alkoxy silicone

9

1 part

50

Alkoxy silicone

TABLE 1—Description of sealants tested.