Quick Details

• Material:

  PU

• Standard or Nonstandard:

  Standard

• Place of Origin:

  Beijing

• Samples:

  Free

• Delivery Time:

  10 Days

• Packing:

  310ml Cartridge 600ml Sausage 200L Drum

• Delivery Port:

  Tianjin

• Max. Production Capacity:

  3000000pcs

• Export Ratio:

  71% - 80%

• OE Experience:

  No

Product Name:Multi-Purpose Polyurethane Sealant (Comensflex 8221)

Multi-Purpose Polyurethane Sealant (Comensflex 8221)

Application

bus/car

Product Description:

DESCRIPTION
Comensflex 8221 is a one-component, moisture-curable, polyurethane-based, elasto-meric adhesive sealant. It is a fast curing, non-sag system. After curing, it provides a permanently elastic bond to fasten materials with different coefficients of expansion.

ADVANTAGES
1, Good Adhesion to a wide range of substrates.
2, Cures rapidly to a permanently elastic consistency with excellent cut and tear resistance.
3, Low odor, non-staining.
4, Surface paintable with water, oil, and rubber based coatings.
5, Non-corrosive.
6, Provides shock resistance and vibration damping.
7, Exhibits high recovery (> 90%), making it ideal for sealing dynamically moving joints.
8, Weather resistant.

CHARACTERISTICS

Color Black White/Gray
Appearance Paste Paste
Density (DIN 53479) 1.25 ± 0.05 kg/l 1.45 ± 0.05 kg/l
Sagginess 0 mm 2mm
Cure mechanism Moisture-curing Moisture-curing
Tack-free time* 30~60 min 30~80 min
Rate of cure* 2~3 mm per 24 hrs 2~3 mm/ 24 hrs
Shore A hardness (DIN 53505) 60± 5 40± 5
Tensile strength (DIN 53504) 2.5 N/mm2 2N/mm2
Elongation at break (DIN 53504) 500% 600%
Shear strength (without primer) 2 N/ mm2 1 N/ mm2
Glass transition temperature (DIN 53445) -45° C, approx -45° C, approx
Service temperature (continuous) -40° C to +90° C -40° C to +90° C
Short term (up to 48 hrs) 120 ° C 120 ° C
*= at 23° C and 55% relative humidity

APPLICATIONS

1, Vehicle bodies and cab construction including panels, underbody components, and roofing.
2, Front and rear spoilers, auto trim, moldings, body seams, and welded joints.
3, Waterproofing exterior lap seams in many applications, including truck trailers, RV's, metal roofs, window perimeters, grain bins and HVAC units.
4, Waterproofing rivet seams.
5, Sealing of exposed and concealed joints of aluminum, steel, coated metals, wood, roof rails, and door hinges in transport equipment.
6, Sealing and caulking expansion joints, pre-cast concrete panel joints and joints between logs on log homes.

PACKAGING
1.310ml cartridge
2. Flexible Package: 400ml, 600ml
3. Drum: 200L

STORAGE AND SHELF LIFE
When stored at the recommended conditions in original, unopened containers, this product has a shelf life of 9 months (cartridge), 6 months (sausage and drum).
The shelf life of polyurethane sealant is related to the temperature and humidity of the environment. The recommended storage temperature is 5-25° C, humidity is <50% RH. It is strictly prohibited that the transportation or storage temperature is over 30° C or the humidity is over 80% RH. And high-temperature container transportation is prohibited as well. In the long-time high temperature and high humidity storage environment, the product is easy to get viscous, extrusion will be deteriorated and shelf life will be shortened.

Comens New Materials is a listed company in China ("Comens Materials", Stock Code: 300200. SZ) committed to providing professional solutions for bonding (including lamination, wrapping, etc. ), sealing and protection in the field of soft packaging, assembling, construction, furniture and building ...[Read More]

Company Profile:

• Main Product:

  Polyurethane Sealant, Polyurethane Adhesive, Polyurthane Waterproof Coating

• Business Type:

  Manufacturer

• Current Export Market:

  North America, South America, Western Europe, Eastern Europe, Eastern Asia, Southeast Asia, Mid East, Africa, Oceania

• Total Annual Sales:

  USD 50,000,001 - 100,000,000

Factory Profile:

• Number of Employees:

  301 - 400 People

• Shift:

  2

• Years of OEM Experiences:

  8

• Certification:

  ISO 9001, ISO 14001, TS16949