Page 1 of 4 Chemaflex 276 One-Component Polyurethane Fuel Resistant Sealant

________________________________________________________ Product Chemaflex 276 is a low modulus, one component Description polyurethane sealant. It is manufactured strictly

under the system of ISO 9001 and ISO 14001. __________________________________________________________________ Uses Chemaflex 276 is an elastomeric sealant for use in

horizontal and vertical joints in: Insitu concrete Precast concrete Brick and block work Granite, sandstone and marble GRC, Fibre glass & Specialty panel systems Metal curtain wall Water tanks Flooring Garage floors and car washing bays Car parks Runways, parking bays and garages at airports Canal and drain

_________________________________________________________________ Advantages Chemaflex 276 provides the following advantages:

Bubble-free curing system Easy to apply, ready for use Excellent adhesion onto various substrates Good UV, weather and ageing resistance High tear strength. Good expansion and contraction properties Good mechanical properties Stability at high ambient temperatures Excellent resistance to chemical and environmental

attack __________________________________________________________________ Tests Reports Tested according to BS5215-1986, Type A

BS5889: 1989, Type A US-FS-TT-S-00230C Type 11, Class A US-FS-TT-S-00227E Type 11, Class A ASTM C920, Type S, Grade NS, Class 25 use NT,

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Page 2 of 4 ________________________________________________________ Product Data __________________________________________________________________ Color shade Concrete Grey; other colors available on demand. _______________________________________________________________ Packaging 600 ml sausage, 20 pcs/carton Bulk packing on demand _______________________________________________________ Storage and Shelf Life __________________________________________________________________ Storage Condition Store in a cool and dry place (5~ 30 C

recommended). Avoid damage to the package. __________________________________________________________________ Shelf Life When stored at the recommended conditions in

original, unopened containers, this product has a shelf life of 12 months.

__________________________________________________________________ Technical Data __________________________________________________________________ Colors Black, White, Grey __________________________________________________________________ Odor No __________________________________________________________________ Solid Content 100 % __________________________________________________________________ Appearance Uniform paste (Unhardened state) __________________________________________________________________ Density Approx 1.30 g/cm3 __________________________________________________________________ Tack Free Time Approx 6 hours __________________________________________________________________ Curing Rate ~ 2mm/24 hr __________________________________________________________________ Sagginess 0 __________________________________________________________________ Elastic Recovery 95% __________________________________________________________________ Shore A Hardness ~ 30 __________________________________________________________________ Tensile Strength 1.3 Mpa __________________________________________________________________ Elongation at Break approx 900% __________________________________________________________________ Shearing Strength approx 0.6 Mpa __________________________________________________________________ Application Temperature 5C ~ 35C __________________________________________________________________

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__________________________________________________________________ Service Temperature - 20C ~ 80C __________________________________________________________________ Applications Details ________________________________________________________ Cleaning Clean and dry surfaces by removing foreign matter

and contaminants such as oil dust grease, frost, water, dirt, old sealants and any protective coating. Dust and loose particles should be blown out of joints or vacuum cleaned. Non porous surfaces may require preparation/priming. Cleaning solvents should not be allowed to dry or evaporate without being wiped with a clean, dry cloth.

__________________________________________________________________ Priming Activators and /or primers may be required to

achieve optimal adhesion depending on the nature of substrates. Consult Technical Deptt. for advice.

__________________________________________________________________ Application Minimum application temperature 5C.

Chemaflex 276 should be dispensed from the sausage by means of a caulking gun. Smaller quantities can be applied by hand. Pierce the membrane at the top of the cartridge and screw on the nozzle. Cut nozzle to give the required angle and bead size. Place the sausage in an applicator gun and squeeze the trigger. Using the trigger extrude the sealant. Apply Chemaflex 276 in a continuous bead using enough pressure to properly fill the joint.

__________________________________________________________________ Product Consumption

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Joint depth

running meters of joint per 600 ml unit width of joint b (mm)

D (mm) 8 10 12 15 20 25 30 35 8 9.3 7.5 6.2 5.0 10 7.4 6.0 5.0 4.0 3.0 12 4.0 3.3 2.5 2.0 1.8 1.3 15 2.0 1.6 1.3 1.0 20 0.8

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__________________________________________________________________ Condition of The contact surfaces must be of sufficient strength, Substrate dry, free of oil, fat and loose particles; friable

sections must be removed. __________________________________________________________________ Cleaning Clean all tools and equipment immediately after

use. Hardened material can only be removed mechanically.

__________________________________________________________________ Safety __________________________________________________________________ Toxicity Non Toxic. __________________________________________________________________ Transportation Non- hazardous __________________________________________________________________