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Resin

FINOS-997 General-purpose neutral sealant

Features & Benefits

Single-component, neutral curing, easy to apply

After curing, it forms elastic silicone, which can maintain good elasticity within a wide temperature range of 50°C to 150°C and meet the displacement caused by thermal expansion and contraction of doors and windows.

Excellent weather resistance, featuring anti-ultraviolet, anti-ozonation, anti-rainwater, anti-snow and ice aging properties, and still maintaining sealing effect even when exposed outdoors for a long time.

It can bond well with various building materials without the need for a primer.

No organic solvents are used, with low VOC emissions, meeting the requirements of green construction in the building industry.

After solidification, it forms a continuous elastic membrane, which can prevent rainwater, air and noise from penetrating, thereby enhancing the airtightness and water tightness of the doors and windows.

Applications

Suitable for the connection parts of frames and sashes of various materials such as aluminum alloy doors and windows, plastic-steel doors and windows, wooden doors and windows, and steel doors and windows.

In the joints of curtain walls and glass curtain walls, when structural sealant and weatherproof sealant are used in combination, it is possible to achieve waterproofing and seepage prevention for large areas and complex shapes.

In energy-saving and thermal-insulating window and door systems, the low thermal conductivity and excellent elasticity of the sealant help enhance the overall thermal performance.

Scenarios such as replacing old doors and windows, filling gaps around window openings, and re-sealing the door frames and walls can all be reinforced and prevented from leaking using window and door sealant.

Special environment: The window and door sealants that can withstand both high and low temperatures and salt fog can be used in coastal areas, cold regions, and projects with extremely high requirements for durability.

Typical Properties

The operating conditions are 23 ± 2℃, relative humidity 50 ± 5%, and the test results are as follows:

Test Method	Properties	Unit	Standard	Results
GB/T 13477 (ISO 7390)	Resistance to Sag (Slump)	mm	≤ 3	0
GB/T 13477 (ISO 8394)	Extrusion Rate	ml/min.	≥ 80	232
GB/T 13477 (ASTM D 2377)	Tack-free Time	h	≤ 3	2
GB/T 13477 (ISO 7389)	Elastic Recovery	%	≥ 70	60
GB/T 13477 (ISO 8339)	Tensile Strength:	MPa
— At 23℃	/	/	≥ 0.4	0.36
— At -20℃	/	/	≥ 0.8	0.45
GB/T 13477 (ISO 8339)	Elongation at Break	%	≥ 300	460
GB/T 13477 (ISO 11600)	Adhesion at Maintained Extension	/	No Failure	No Failure
GB/T 13477 (ISO 9047)	Adhesion after Heat Conditioning and Cold Tension	/	No Failure	No Failure
GB/T 13477	Adhesion after Water Immersion and UV Exposure	/	No Failure	No Failure