BOSTIK SMARTFLEX POLYURETHANE SEALANT

About BOSTIK SMARTFLEX POLYURETHANE SEALANT

91 000 74051 Bostik SmartFlex PU is a high-performance, low-modulus, one component polyurethane (PU) sealant. It cures to a permanently elastic, weather-resistant seal capable of 25% joint movement (50% total), making it ideal for both internal and external sealing joints. It offers excellent resistance against rain, sunlight, ozone, pollution and maintains durability without surface tackiness. 
Key Features:Low modulus elastic sealant for expansion & connection joints. Movement capability: 25% of joint width (total 50%). Permanently elastic; resists weathering, UV, ozone & pollutants. Thixotropic: no sagging on vertical/overhead joints. Good extrusion force for narrow joints. Paintable over cured surface.
Q1. What is movement capability of SmartFlex PU It can handle 25% movement of the original joint width (total 50%) without failing. 
Q2. Where can this sealant be used Good for joints in concrete, aluminium panels, fibre-cement sheets, windows, facade joints, plasterboard, and connection joints inside & outside. 
Q3. How to apply it Clean joint surfaces (remove dust, grease). Use appropriate backing rod. Apply directly from sausage/cartridge using a PU gun. Tool the joint if needed. Ensure surface is dry. It will cure by moisture.
Q4. What about UV, weather, durability It resists sunlight, rain, ozone, environmental pollutants. It remains flexible, does not sag, and once cured, the surface is not tacky. 
Q5. Is it paintable over after curing Yes, once fully cured, it accepts paint. 
Q6. What is the shelf life & storage condition Usually 12-24 months when stored sealed, in dry and cool conditions. (Listings show Shelf Life, 12-24 Months.) 
Q7. What is approximate price for 600 ml pack In Hyderabad, sellers list around 490 for 600 ml pack of the grey variant via Civiliz Mart. Prices may vary by color (grey/white), seller, and purchase quantity. Always confirm with supplier for the best offer.