RB-168 Two-Part Silicone Structural Sealant

RB-168 Two-Part Silicone Structural Sealant

Main Uses

1. Structural assembly for visible frame and hidden frame glass curtain walls.
2. Structural assembly for metal structure engineering.
3. Secondary bonding and sealing for insulating glass.
4. Other applications in the construction field and industrial uses.

Product Description

RB-168 is a two-part, neutral cure, high modulus, high strength, high elasticity silicone structural sealant specifically designed for structural bonding and assembly of building curtain walls. It boasts excellent structural bonding performance and weather and aging resistance. The two components, when mixed at the specified ratio, cure to form a long-lasting and effective structural bonding seal.

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Product Features

Adjustable curing speed and fast deep curing, suitable for continuous construction operations.
Neutral cure, non-corrosive and non-polluting to building materials such as metal, coated glass, stone, and ceramic tiles.
Excellent adhesion, capable of forming strong bonds with most building materials.
Outstanding weather and aging resistance, resistant to ultraviolet radiation, ozone, and water.
Good high and low temperature resistance, maintaining excellent elasticity within the temperature range of -50℃ to 150℃ after curing.
Good compatibility with other neutral silicone sealants and structural assembly system accessories.

Item (English)	Technical Indicator	Measured Value
Sag Resistance	Vertical Placement / mm	≤3	0
Sag Resistance	Horizontal Placement	No Deformation	No Deformation
Tack-Free Time, h		≤3	≤1.5
Application Period, min		≥20	≥20
Hardness/Shore A		20-60	40~50
Tensile Adhesion Tensile Adhesion Strength, Mpa	23°C	≥0.60	≥1.00
	90°C	≥0.45	≥0.70
	-30°C	≥0.45	≥0.80
	After Water Immersion	≥0.45	≥0.80
	After Water-UV Exposure	≥0.45	≥0.80
	Adhesion Failure Area, %	≤5	0
Elongation at Max Tensile Strength at 23℃, %		≥100	≥150
Heat Aging	Heat Loss, %	≤10	≤3
	Cracking	None	None
	Chalking	None	None

Main Uses

Structural assembly for visible frame and hidden frame glass curtain walls.
Structural assembly for metal structure engineering.
Secondary bonding and sealing for insulating glass.
Other applications in the construction field and industrial uses.

Product Packaging and Standards

Large Packaging:

Component A: 200L Iron drum, net content 180L or 189L
Component B: 20L Plastic bucket, net content 18L or 19L

Small Packaging:

Component A: 20L Plastic bucket, net content 19L
Component B: 2L Plastic bucket, net content 1.9L

Enterprise Standard: Q/GZTHG 2 Silicone Structural Sealant for Construction
National Standard: GB 16776 Silicone Structural Sealant for Building
National Standard: GB 18583 Limit of Harmful Substances in Adhesives for Interior Decoration Materials