antas-293 Modified Polyurethane Sealant

Product manual

Antas-293 is one-component, low-modulus, neutral curing polyurethane sealant. It is safe and environment friendly with good weatherproofing ability. It shows good adhesion to concrete, aluminum, glass, and stone materials.

Product feature

Excellent mechanical property with high strength and elasticity. Can be used for expansion joints. Excellent adhesion to most building materials such as UPVC，window, aluminum window, precast construction, expansion joint, ground sealing, etc.
Good surface painting feasibility.
Excellent performance of aging, heat and humidity resistance.
Safe and environmentally friendly with low VOC and no cyanate ester.

Main purpose

Widely used on the sealing of fabricated walls.
Perfect designed for the sealing of wood, stone, glass, concrete, plastic, FPC, and other nonmetallic materials.
Widely used for the sealing of aluminum alloy, stainless steel, cast iron, stainless iron, and other metallic materials.
Successfully applied to expansion joint, airfield runways, highways, bridges, etc.
Successfully applied to cars, buses, shipping and other transportation tools.

Standards compliant

JC/T 881-2013

Technical parameters

Number	Test items			Standard Ordain (JC /T 881-2017 20LM)	Test results
1	Appearance			Smooth, uniform paste, without bubbles, skinning or gels.	Smooth, uniform paste, without bubbles, skinning or gels.
2	Sag degree, mm		Vertical	≤3	0
3	Tack-free time, h			≤24	1
4	Extrudability, ml/min			≥150	417
5	Elastic recovery rate,%			≥60	94
6	Tensile modulus, MPa	23℃		≤0.4	0.2
6	Tensile modulus, MPa	-20℃		≤0.6	0.2
7	Tensile properties at maintained extension			No destruction	No destruction
8	Tensile properties at maintained extension after water immersion			No destruction	No destruction
9	Tensile properties at maintained extension after cold drawn and hot press			No destruction	No destruction
10	Loss of mass, %			≤8	1

Use restrictions

Antas-293 should not be applied:
1. On building materials that bleed oil, plasticized or solvent, to materials such as impregnated wood, oil-based caulks, green or partially vulcanized rubber gaskets, or tapes or bituminous below-grade waterproof and asphalt-impregnated fiberboard.
2. In totally confined spaces.
3. When substrate surface temperature over 45℃or below 5℃.
4. On wet surface.
5. On the surface in direct contact with food.
6. For structural glazing.

antas-293 Modified Polyurethane Sealant