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ANDEK 950 is a single component, moisture curing polyurethane adhesive.  It will bond all materials commonly employed in the construction of infrastructure such as bridges, piers, foundations, etc., including steel, masonry, aluminum, wood, etc. ANDEK 950 expands to fill voids and rapidly cures to reach its full strength.

 

OUTSTANDING FEATURES:

 

§         Saves labor time; requires no mixing, metering or preactivation

§         Remains flexible and allows low temperature movement

§         Non-sticky rheology allows better flow properties

§         Moisture-cures without catalyst addition

§         Allows normal substrate movement to continue without disruption of bond

§         Will not become brittle

 

SPECIFICATIONS: 

Adhesive  Type:    

Moisture curing polyurethane

VOC:  

Zero gms/liter

Pot Life: 

Single component

Shelf Life:      

6 months

Recommended Thickness:   

3 mils wet up to 6 mils dry

Coverage:    

50 square feet per pound

Packaging:

10 pound and 50 pound units

Color:   

Tan

 

 

APPLICATION:

 

Caution! READ THIS ENTIRE DATA SHEET BEFORE CONTINUING.   CONTINUING.                                   

For pressure injection: All cracks to be treated should be clean and dry. Drill ½" diameter holes 3" deep into all visible cracks at intervals of one per 18" of running crack.  Coat 6" lengths of ½" diameter plastic pipe with Andek 950 and insert 3" deep into the holes as entry ports. After all entry ports have set, apply Andek 950 over the cracks and while still wet, encapsulate a layer of 4" wide Roofab over the crack with a 2nd coat of Andek 950. Only one side of the structure should be prepared, with the opposite face or side left untouched. As soon as the Andek 950 has thoroughly cured (8-12 hours after the last application), injection may commence. A Grayco 45:1 King or similar equipment with ½" diameter hose and insertion nozzle should be used.  Insert bungs into all entry ports except the one that is to be connected to the flow.  Begin at the lowest entry port and progress systematically upwards, replacing the bungs after each application is complete. Inject Andek 950 into each entry port at 100 psi; flow rate will be determined by the extent of the interior cracks. Observation of the opposite face will determine when all interior cracks are filled as Andek 950 should begin to appear on the surface. Andek 950 will swell upon curing.  All equipment should be cleaned with xylene before cure takes place. When sealing horizontal cracks, Andek 950 (low viscosity, Type ‘B) is applied into the crack using an applicator bottle with the necessary width of nozzle.  Cracks less than 50 mils wide and 250 mils deep.  Any dust generated in this process should be vacuumed or blown away.  Voids in poured screeds may also be treated in a similar manner.

 

LIMITATIONS:

Avoid humid atmospheres and keep lids tightly closed.  Shelf life is limited to 6 months.  Clean tools and equipment in xylene or high aromatic napthas.

 

PRECAUTIONS:

It is recommended that standard safety equipment, such as masks, goggles and chemical splash goggles be worn while handling this product. Use only in well ventilated areas. Avoid inhalation. In case of contact with skin or eyes flush with water for 15 minutes. For contact with eyes, seek immediate medical attention in addition to flushing. Obtain medical attention if swallowed or if symptoms develop from contact or inhalation. For additional information, contact our technical department.

 

TECHNICAL DATA:

Shear Strength:    

600 lbs psi

Solids Content:  

100% (B.W.); 110% (B.V.)

Peel Strength: 

35 lbs psi

Flammability:      

Non-flammable

Weight per gallon:   

10.2 pounds

Cure Time:    

10 hours @ 70°F (70% R.H.)

 

 

 

 

NOTICE:  The information presented herein is based on tests and data that Andek Corporation believes to be reliable.  It is intended for use by technically qualified personnel at their own discretion and risk.  Since conditions of handling and use are beyond our control, we make no warranties, express or implied, and assume no liability in connection with any use of this information.  Nothing herein is to be construed as a license to operate or a recommendation to infringe any patent.

 

 

Copyright Andek Corporation 2005.  All rights reserved.