Description:Comensflex 8266 N is a two-component polyurethane
sealant for various joint sealing, which has the features of good
thixotropy, high elongation and good elasticity. It is a
high-performance polyurethane material for sealing and
waterproofing for construction. Usage:Concrete construction
expansion joint, expansion joint of railway, airport runway, and
highway/railway bridge.Characters:Good thixotropy, easy to apply on
vertical and inclined surface, high solid content, high elongation,
good water resistance, excellent durability and fatigue resistance.
Its service life is much longer than asphalt joint sealant. The
sealant is of high bonding strength, with no trickling at summer
time or hardening and cracking at winter time. It keeps an
elastomer permanently, which is effective sealing and
waterproofing.Technical Data: ItemsUnitData1Levelability
Even and smooth2Tack-free timeh≤83Complete dry
timeh≤124Elastic recovery rate%≥805Solid content%≥996Hardness
(23c)Shore A20-307Water impermeability 0.4Mpa, 2h8Elasticity
modulus25±2cMpa≤0.3-30±2c≤0.69Tensile strengthStandard
conditionMpa≥2.010Elongation at break (%)Standard
condition%≥50011Elasticity at low temperatureStandard
condition-35cNo crack12Bonding performance at definite
elongationHeat treatment60% definite elongationNo breakageAlkaline
treatment13Bonding strengthDry surfaceMPa≥1.0Wet
surface≥0.6Construction Technology:(1) Preparing Work Expansion
Joint Clearance The expansion joint should be dry and clean with no
sundries such as foam and matchwood, etc. Clear away the quicksand
and oil. If necessary, clear away the sundries and quicksand with
blower. Note: The clearance of the expansion joint is a factor of
the good performance of the sealant. The wet or dirty expansion
joint will cause bulge or falling down of the sealant. And the oil
or dust will impact the bonding effect. Thus, there will be
separation between the sealant and the surface under the cold
condition. Comens will not shoulder the responsibility if there is
quality problem due to the uncleaness of expansion joint. Pad
According to the need, we usually suggest to use the PE pad under
the joint, to avoid stress concentration due to bonding on three
sides. The diameter of the round pad should be bigger than the 25%
width of the expansion joint to avoid leakage of the sealant. (2)
Comensflex 8266A/B (Type N): Mixing ratio is 5: 1. As the two
components are both of non-sagging, put the two components on the
tray with the ratio and mix uniformly. Note: Comensflex 8266 A/B
(Type N) is of two-component. The mixing ratio must be 5: 1 and
assure uniformly mixed as the color appears uniform. (3) Applying
technology Apply the mixture with spade or spatula into the joints.
After working, no water can be put into the sealant within 24
hours. Note: (1) The work must be done at appropriate temperature.
(Refer to From I). (2) The consumption is different according to
the depth of the expansion joints. (3) The sealant must be applied
in working time, or the work will be affected. (Refer to From I).
(4) The sealant must be conserved for at least 24hs at the humidity
less than 80%RH, temperature 5-40. (5) It does not affect usage if
there is slight bubble or bulge after the sealant curing. (6) The
movement capability is 25LM, that is to say the deflection of the
expansion joint should be less than 25% of the expansion
joint.Storage and Shelf Life:Store in a cool and dry place. Avoid
direct sunlight. If stored at the recommended conditions in
original, unopened containers, this product has a shelf life of 12
months.Packging:Comensflex 8266N (A):22.5kg/pail, Comensflex 8266N
(B):4.5kg/pail.Partners:Packaging & Shipping: Company
Profile:Production Base:Automatic Production Lines and Quality
Assurance: Global Sales Network: Certificates:COMENS,A FULL RANGE
OF SOLUTIONSFOR MULTIPLE INDUSTRIES/* January 22, 2024 19:08:37
*/!function(){function s(e,r){var
a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
Related products about High Quality Two-Component Polyurethane Sealant Adhesive Glue for Various Construction Joint Sealing and Waterproofing
- Self-Leveling Moisture Curable PU (Polyurethane) Waterproof Membrane (Comensflex 8269)
- Weather Resistant PU Adhesive for Artificial Grass Installation with CE/ISO (Flexibond 8010)
- Weather Resistant PU Adhesive for Artificial Grass Installation with CE/ISO (Flexibond 8010)
- Third Generation Acrylic Structural Adhesive for Composite Materials
- Two-Part Acrylic Adhesive for Metal-Bonding (PT805)
- Two Component Modified Polyurethane Elastic High Temperature Resistant Adhesive for Bonding Vehicle Body-on-Frame/ Unibody Construction/ Monocoque SMC
- Multi-Purpose Polyurethane Sealant for Construction Sheet Metal Roofs Window Perimeters Sealing and Bonding
- Excellent Bead Stability Single Component Polyurethane Sealant for Wood Floor Installation