Polyurethane Sealant

Polyurethane sealant is especially designed for various applications from construction industry to automobile line. Apart from excellent resistance to water, weather and mildew, it also comes with excellent elasticity, viscosity and durability. The product can be easily used even without primer, as well as easily abraded and painted. Furthermore, environmental performance offers safe working environment. After curing, no solvent or odor will be produced.

This product comes with numerous types including Kater621 construction PU sealant, Kater628 wood flooring sealant, Kater658 auto windscreen sealant, Kater691 car body PU sealant, Kater1010 PU foam sealant, and so on. It is supplied in 310ml alu cartridge, 300ml, 400ml or 600ml foil sausage, as well as 200L drum package.

Comparison Table
Testing ItemsKater621Kater628Kater658Kater661Kater691
AppearanceBlack/White/GrayBlackBrownBlackWhite/Gray
Density (g/cm3)1.301.35±0.011.35±0.021.251.30±0.02
Touch Dry Time (min)18-20≤3015-3018-3020-30
Curing Speed (mm/d)2-32-32-32-32-3
Volatile Content (%)≤4≤4≤4≤4≤4
Shore Hardness A30±535±561±365±250±5
Stretch Modulus (Mpa)≥0.4≥1.4≥4.0≥3.0≥1.6
Elongation at Break (%)>500≥500≥350≥400≥350
Extrudability (ml/min)≥80120806880
Sagging Properties (mm)00000
Pollution PropertiesNoneNoneNoneNoneNone
Application Temperature (℃)+5~+35+5~+355~+355~+355~+35
Shelf Life (month)99999

Our company is a professional polyurethane sealant manufacturer and supplier in China. We offer a wide array of products, including EVA hot melt adhesive, acetoxy silicone sealant, polyurethane foam sealant, and acrylic sealant, etc.

Kater Adhesives