Silicone Weatherproofing Sealant Class 25 for Curtain Wall
General purpose, neutral cure silicone sealant for general sealing,
general glazing, waterproofing applications
These values are not intended for use in preparing specifications.
|GB/T 13477 (ISO 7390)||Slump||mm|
|GB/T 13477 (ISO 8394)||Extrusion rate||ml/min.||≥80||418|
|GB/T 13477 (ASTM D2377)||Tack free time||h||≤3||0.7|
|GB/T 13477 (ISO 7389)||Extension recovery||%||≥80||90|
|GB 16776 (ISO 10563)||Weight loss||%||≤10||7|
|GB/T 13477 (ISO 8339)||Tensile Modulus||MPa||＞0.4|
|GB/T 13477 (ISO 11600)||Movement capability||%||±25||±25|
|JC/T 485||Adhesion after UV exposure|
|GB/T 13477||Adhesion at fixed stretch|
|GB/T 13477||Adhesion after heat contract and cold extension|
|GB/T 13477||Adhesion after water immersion|
*GB: Chinese National Standard
JC/T: Chinese Recommended Standard for Construction Materials
ASTM: American Society for Testing and Materials
ISO: International Standardization Organization
GB 996 is available in disposable cartridges (net 300ml),24 pieces
to a carton, and sausages (net 500ml),20 pieces to a carton.
GB 996 is designed to meet or even exceed the requirement of:
Chinese national standard.
Complies with ASTM C 920.
STORAGE AND SHELF LIFE
GB 996 should be stored in original unopened containers. It has a
shelf life of 12 months from the date of manufacture.
GB 996 should not be applied:
For structural glazing.
To the materials that bleed oils , plasticizers or solvents, such
as impregnated wood, oil-based caulks.
In totally confined spaces as sealant requires atmospheric moisture
To frost laden or damp surfaces.
For continuous water immersion.
When surface temperature below 4℃ or over 50℃.
HOW TO USE
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.
Mask areas adjacent to joints to ensure neat sealant lines. Apply
GB 996 in a continuous operation using dispensing guns. Before a
skin forms, tool the sealant with light pressure to spread the
sealant against the backing materials and joint surfaces. Remove
masking tape as soon as the bead is tooled.
Complete technical information and literature, adhesion testing and
compatibility testing are available from Guibao.
GB 996 is a chemical product, not edible, no implantation into body
and should be kept away from children.
Cured silicone rubber can be handled without any risk to health.
Should uncured silicone sealant contact with eyes, rinse thoroughly
with water and seek medical treatment if irritation persists.
Avoid prolonged exposure of skin to uncured silicone sealant.
Good ventilation is necessary for work and cure places.
The information presented herein is offered in good faith and is
believed to be accurate. However, because conditions and methods of
using our products are beyond our control, this information should
not be used in substitution for customer’s tests to ensure that our
products are safe, effective, and fully satisfactory for intended