GH-980 Weatherproofing Silicone Sealant

Guhe Weatherproofing Silicone Sealant (GH-980) is a high-performance single-component neutral silicone sealant engineered for outdoor weather sealing of curtain walls, exterior panels and building perimeter joints. It provides long-term airtight and waterproof sealing, resisting UV radiation, rain, ozone and extreme temperature fluctuations in harsh exterior environments.

Manufactured following GB/T 14683 national standard for building silicone sealants. Low-modulus formula owns high movement capability to accommodate thermal expansion and contraction of building facades, keeping sealing integrity under frequent joint displacement. Neutral cure design is low odor and non-corrosive, suitable for new construction and building renovation projects.

GH-980 delivers equivalent weatherproof performance to DOWSIL™ 791 and Sikasil® WS-305, with obvious cost advantages. Widely applied to glass, metal and stone curtain wall joints, facade panel seams, building expansion joints and perimeter exterior sealing.
Available in 300ml cartridges, 590ml sausage packs and 200L bulk drums. COA available per batch.

Cure Type	Neutral	—
Movement Capability	Class 25 / Class 50	GB/T 14683
Tack-Free Time	≤ 3 hours	GB/T 13477.5
Elastic Recovery	≥ 80%	GB/T 13477.17
Service Temperature	-50°C to +150°C	—
Shelf Life	12 months	—

 

 

 

 

 

 

 

Curtain Wall Joint Sealing:

For weather sealing of glass, metal, and stone curtain wall joints, preventing wind and rain infiltration and protecting building envelopes.

Facade Panel Sealing:

For sealing joints between facade panels and building envelopes, accommodating thermal movement.

Expansion & Connection Joints:

For sealing expansion joints and connection joints in building exteriors, ensuring waterproof integrity under varying climate conditions.

Building Perimeter Sealing:

For weatherproof sealing of building perimeters and interfaces, enhancing overall air and water tightness.