Construction Sikaflex ® 1a One part polyurethane, elastomeric sealant/adhesive Description



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CALLING 201-933-8800.

ISO 9001

Certificate # FM 69711

RC 14001

Certificate # RC 510999

Sika and Sikfaflex are registered trademarks.

Printed in Canada.

Coverage 

How to Use

Surface Preparation  Clean all surfaces. Joint walls must be sound, clean, dry, frost-free, and free of oil and grease. Curing compound

residues and any other foreign matter must be thoroughly removed. A roughened surface will also enhance

bond. Install bond breaker tape or backer rod to prevent bond at base of joint.

Priming

Priming is not usually necessary. Most substrates only require priming if testing indicates a need or where

sealant will be subjected to water immersion after cure.

Consult Sikaflex Primer Technical Data Sheet or Technical Service for additional information on priming.



Application

Recommended application temperatures: 40°-100°F.

For cold weather application, condition units at approximately 70°F; remove prior to using. For best performance,

Sikaflex-1a should be gunned into joint when joint slot is at mid-point of its designed expansion and contrac-

tion. Place nozzle of gun into bottom of the joint and fill entire joint. Keep the nozzle in the sealant, continue

on with a steady flow of sealant preceding the nozzle to avoid air entrapment. Avoid overlapping of sealant to

eliminate entrapment of air.


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