IOTA 992 Silicone Structural Glazing Sealant
1. Two components;
2. Structural sealing and glazing for curtain wall
Features:
1. Two parts , neutral cure to form an extremely tough elastomeric rubber
ensuring a durable, flexible, and watertight bond
2. non-corrosive to metals, coated glass, low-E glass and many other
substrates
3. Good weatherability and high resistance to UV radiation ,heat and
humidity, and ozone
4. Good stability through wide temperature range from –50 ℃ to +150 ℃
5. Good unprimed adhesion to wide range of substrates
6. High level of mechanical properties
7. Good compatibility with other neutral silicone sealants
COLOURS
Part A (base) of IOTA 992 is available in white, part B (curing agent) in
black; Black color after mixing.
PACKAGING
IOTA 992 is available in kit: part A in 200L drums (net 190L), part B in
20L pails (net 18.5L).
Typical properties:
These values are not intended for use in preparing specifications
|
Test Method
|
Property
|
Unit
|
Standard
|
Result
|
|
GB/T 13477 (ISO 7390)
|
Slump
|
mm
|
≤3
|
0
|
|
GB/T 13477 (ASTM D 2377)
|
Tack free time
|
h
|
≤3
|
0.8
|
|
GB/T 13477
|
Working time (after 20 min.)
|
|
≤10
|
2.2
|
|
GB/T 531.1 (ISO 7619)
53113477
|
Hardness
|
Shore A
|
20～60
|
43
|
|
GB 16776 (ASTM C 792)
|
Heat Aging
|
|
|
|
|
weight loss
|
%
|
≤10
|
3.5
|
|
cracking
|
|
Nil
|
Nil
|
|
chalking
|
|
Nil
|
Nil
|
|
GB/T 13477 (ISO 8339)
|
Tensile strength
|
MPa
|
|
|
|
23℃
|
|
≥0.60
|
1.13
|
|
90℃
|
|
≥0.45
|
1.02
|
|
-30℃
|
|
≥0.45
|
1.62
|
|
water immersion
|
|
≥0.45
|
1.01
|
|
water-UV exposure
|
|
≥0.45
|
1.09
|
|
adhesion failure
|
%
|
≤5.00
|
0
|
|
extension rate at ultimate tensile strength at 23℃
|
%
|
≥100
|
140
|
STORAGE AND SHELF LIFE
IOTA 992 should be stored at or below 27℃ in original unopened containers. It has a shelf life of 12 months from
the date of manufacture.
