Description
ZJ-997 Silicone insulating glass sealant is a two-parts, neutral
curing silicone sealant specifically developed for the manufacture
of high performance insulated glass with good features as follows:
a. Insulating glass manufactured by ZJ-997 conforms to GB/T11944
b. Excellent adhesion to all kinds of glass
c. Neutral cured, no corrosion, non poisonous
d. Excellent structural strength with temperature durable
performance at 50~+150
e. Excellent weatherproof and UV, high temperature and humidity
stability.
No limitation for batch time match
Where to use
1. It is formulated for making the secondary seal in a dual sealed
insulating glass unit.
2. The high performance features incorporated into this product
make it especially suitable for the following applications:
1) Insulated glass unit for commercial buildings
2) Insulated glass unit incorporating specialty glass types, or
with free edges (solar architecture).
3) Insulated glass unit where high heat or humidity maybe
encountered.
Typical properties (for reference)
Item | Base | Curing Agent | Mixed Base to Curing Agent by Volume | Test method |
Colors | White | Black | Black, no flow paste | |
Specific gravity | 1.38 | 1.02 | 1.33 | |
Shelf life, month | 12 | 12 | | |
Mixed at 12:1 Base to Curing Agent by weight (or 9:1 by volume) |
Working Time((humidity 505%,temperature 232) | minutes | 20-40 | |
Tack free time (humidity 505%,temperature 232) | minutes | 80-100 | |
Corrosive | | | no | |
As Cured 7 Days at (humidity 505%,temperature 232) |
Ultimate tensile strength | MPa | 0.85 | GB/T113477 |
Ultimate elongation | | % | 120 | GB/T113477 |
Hardness (Shore A) | | | 42 | GB/T1531 |
Service temperature range | | 50~+150 ( -58~+302F) | |
Please contact zhijiang before make specification.
GB/T1___Chinese national standard
Application
ZJ-997 structural sealant has excellent unprimed adhesion to most
coated or not coated glass. It's compatible to neutral serial
zhijiang products like ZJ-2000, ZJ-888, ZJ-222, ZJ-225 or ZJ-8000.
Application method
The base and curing agents should be mixed by airless mixing system
for better physical performance. ZJ-997 is fit for general two-part
silicone sealant dispenser. It will have no good effects if using
manual mixing or using hand for air entering into sealant and later
changing the performance of sealant.
Lot matching of base and curing agent is not required for ZJ-997.
ZJ-997 should be stirred before use to prevent possible settling in
shipment.
Because of its reactivity with atmospheric moisture, curing agent
should not be exposed to air for prolonged period. The 12:1 base to
curing agent mixing ratio by weight could be adjusted by user from
10:1~14:1(mixing ratio by volume from 7.5~10.5:1) for suitable
curing time. No any significant changes will occur over this range.
The increase or decrease of air moisture will affect the snap time.
Please contact zhijiang or dispenser manufacturer for best mixing
ratio.
To obtain optimum adhesion, joints should be tooled immediately
after sealant application to ensure complete substrate contact.
During shutdown, it's recommended that the dispensing and mixing
lines be purged with un-catalyzed base. This minimizes sealant
buildup.
Questions about ZJ-997 could be answered by calling Zhijiang local
agents or representatives. Our laboratory and technical staffs are
available for assistance.
Surface clean
Cleaning all grease, dirty, water, klunky sea
