General Purpose PU Foam Sealant

General Purpose PU Foam Sealant

Kater general purpose PU foam sealant A222 is a single part, multi-functional polyurethane foam which has perfect adhesion to a wide rage of substrates like UPVC, masonry, glass, steel, timber, as well as other substrates excluding PP, PE and Teflon. This ready to use product is furnished with a plastic adapter head, so it can be used with a foam application gun or a straw. The foam will expand and cure on the exposure to the moisture in the air when applied to the working temperature of + 5℃ to +35℃. Especially, when used in the temperature ranging from +18℃ to +25℃, it works better. Containing CFC-free propellants, no damaged will be produced to the ozone layer.

Moreover, our general purpose PU foam sealant holds the advantages of excellent filling and mounting capacities, as well as superior thermal and acoustical insulation. Last but not the least, it should be kept in the cool, shade and well ventilated area. Always keep the can with the valve pointed upwards.

Typical Properties
ConsistencyStable Foam
Curing SystemMoisture-cure
Tack-Free Time (min)7~15
Drying TimeDust-free after 20-25 min.
Cutting Time (hour)1~1.5 (+25 ℃ )
2~3 (-25 ℃ )
Yield (L)30~35
Shrink None
Post ExpansionNone
Cellular Structure60~65% open cells
Specific Gravity (kg/m³)17~22
Temperature Resistance-40 ℃ ~+80 ℃
Application Temperature Range+5 ℃ ~+35 ℃
Fire Class (DIN 4102 )B3
Insulation Factor (Mw/m.k)<40
Compressive Strength (kPa)>100
Tensile Strength (kPa)>30 (10%)
Adhesive Strength(kPa)>80
Water Absorption (ML)0.5~2(no epidermis)
Shelf Life(Month)12 months when stored in unopened packing store at the temperature between +5℃ and +25℃

Due to the outstanding performance described above, general purpose PU foam sealant is commonly found in the building industry. It can be used for installing, fixing, and insulating of door and window frames, insulating the electrical outlets and water pipes, etc. If applied for wrapping the precious and fragile commodity, it can provide shake-proof and anti-pressure performance.

Application methods
1. Shake the aerosol can for at least 40 seconds.
2. Clean and moisten surfaces with a water sprayer prior to application.
3. Fit the gun or straw on the adaptor. Firmly screw the can on the adapter and turn the flow adjustment screw.
4. Fill the holes and cavities approximately 50% as the foam will expand. Bottom up during application.
5. Foam will be tack-free in about 10 minutes, and excess can be trimmed in about 20 minutes.

Our company is a specialized general purpose PU foam sealant manufacturer and supplier in China. We offer a wide range of products, including crystal transparent hot melt stick, roof and gutter silicone sealant, PU auto windscreen sealant, and more.

Kater Adhesives