1.1.2.1 802.3 Compound
The pumpable and gunnable compound is used to bed glass to the surrounding substrate and is intended to remain ductile and prevent air infiltration and water leakage. Type I is recommended for intermittent water contact. Type II is recommended for extended water contact, but not continuous immersion.
1.1.2.2 805.2 Compound
The pumpable and gunnable compound is used to bed glass to the surrounding substrate and is intended to bond or adhere the glass to the substrate and prevent air infiltration and water leakage. Group C demonstrates predominately cohesive failure, while Group A is limited to chemically curing sealants which demonstrate adhesive failure, when tested for peel adhesion according to Section 2.4.1 or lap shear according to Section 2.20.
NOTE 1: Sealant manufacturers may choose to test
sealants to either of the ,following sections or to both to quali)5; to AAMA 805.2 Groups A and C:
Sections 1.1.4.3.3 (Group ,4) and 1.1.4.3.4 (Group C);or Section 1.1.4.4.
The use of lap shear testing following exposures is offered to meet the needs of window manufacturers for sealant strength data which may be used for window design and estimating strength after accelerated aging.
This data may provide insight on sealant durability and performance.