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Curtain Wall Structural Silicone Sealant FNS30

One component, neutral-curing, high-modulus, high-strength, high-elasticity silicone structural sealant. Specially designed for structural bonding assembly of building curtain walls, offers excellent structural bonding performance, outstanding weather resistance and anti-aging capability. Reacts with moisture in the air to cure when using, forming a long-lasting, effective structural bond and seal.

Features & Benefits

Easy to use, with good extrudability and thixotropy within the temperature range of 5℃ to 45℃.
Neutral curing, non-corrosive and non-polluting to building materials such as metals, coated glass, stone, and ceramics.
Excellent adhesion, forming strong bonds with most building materials.
Outstanding weathering resistance, resistant to UV, ozone, and water.
Good high and low temperature resistance, maintaining excellent adhesion and elasticity in the range of -50℃ to 150℃ after curing.
Good compatibility with other neutral silicone sealants and structural assembly system components.

Applications

Structural assembly for building frameless and semi-frameless curtain walls.
Structural assembly for metal structure projects.
Other building and industrial applications.

Standard Compliant

ASTM C1184
ROSH
GB16776-2005

Typical Properties

No.	Item			Technical Specifications	Measured Value
1	Sagging	Vertical placement, mm		≤3	0
		Horizontal placement		No deformation	No deformation
2	Extrudability, s			≤10	≤2
3	Surface Drying Time, h			≤3	≤1.5
4	Hardness / Shore A			20–60	40–50
5	Tensile Adhesion	Tensile adhesion strength, MPa	23℃	≥0.60	≥0.90
			90℃	≥0.45	≥0.70
			-30℃	≥0.45	≥0.80
			After water immersion	≥0.45	≥0.80
			After water and UV exposure	≥0.45	≥0.80
		Adhesion failure area, %		≤5	0
		Maximum elongation at peak tensile strength at 23℃, %		≥100	≥200
6	Heat Aging	Weight loss, %		≤10	≤6
		Cracking		None	None
		Powdering		None	None