IOTA 882 Silicone
Insulating Glass Sealant
Special for the secondary seal of insulating glass units used for window
and door etc.
Features
1.Two part, neutral fast cure rate,
suitable for factory application
2. High level of tensile strength and mechanical properties
3. Good adhesion to a wide range of substrates
including coated glass, low -E glass, tempered glass, laminated glass, aluminum
and steel spacers etc.
4. Good weatherability and high resistance to
ultra-violet radiation ,heat and humidity, and ozone
5. Good resistance to temperature extremes, unaffected performance from
–50 ℃ to +150 ℃
6. Good unprimed adhesion to wide range of substrates Good compatibility
with other neutral silicone sealants
COLOURS
Part A (base) of IOTA 882 is available in white,
part B (curing agent) in black, black color after mixing.
PA C PACKAGING
IOTA 882 is available in kit: part A in 200L drums (net 180L), part B in
20L pails (net 18L).
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 (ISO 9048)
|
Working time
(after 20 min.)
|
s
|
≤10
|
1.4
|
|
GB/T 13477(ASTM D 2377)
|
Tack free time
|
h
|
≤3
|
1.0
|
|
GB/T 531.1 (ISO 7619 )
53113477
|
Hardness
|
Shore A
|
30～60
|
47
|
|
GB/T 13477
|
Tensile strength
|
MPa
|
≥0.6
|
1.2
|
|
GB 16776
|
Adhesion failure
|
%
|
≤10
|
0
|
|
GB 16776 (ASTM C 792)
|
Heat aging
|
|
|
|
|
weight loss
|
%
|
≤10
|
4.5
|
|
chalking
|
|
Nil
|
Nil
|
|
cracking
|
|
Nil
|
Nil
|
STORAGE AND SHELF LIFE
IOTA 882 should be stored at or below 27℃ in original unopened containers. It has a shelf life of 12 months
from the date of manufacture.
LIMITATIONS
IOTA 882 should not be applied:
For structural glazing;
To the materials that bleed oils, plasticizers or
solvents, such as impregnated wood, oil-based caulks;
To frost laden or damp surfaces;
For continuous water immersion;
When surface temperature below 4℃ or over 50℃
HOW TO USE
Surface Preparation
Clean all joints removing all foreign matter and
contaminants such as oil, grease, dust, water, frost, old sealants, surface
dirt, or glazing compounds and protective coatings.
Mixing and Dispensing
To obtain the optimal performance of IOTA 882, it
is recommended that base and curing agent thoroughly mixed using a two-part
silicone dispensing machine.
IOTA 882 should be mixed at a ratio of 9:1～11:1 base to curing agent by volume, or 11:1～13:1 base to curing agent by weight for optimal
performance.
Lot matching of IOTA 882 base to curing
agent is not required. Before use, it is recommended that curing agent be
stirred to ensure the homogeneity of all components.
IOTA 882 part B curing agent will react with
atmospheric moisture, therefore should not be exposed to air for prolonged
periods of time.
