XL4001 PRIMER

Product Description

Normac XL4001 is a single component, room temperature curing, chloroprene based, liquid rubber metal primer.  Normac XL4001 yields high strength adhesion when used with Normac 900R to bond rubber to most metals, such as steel, cast iron, and aluminum .


Package Sizes

Packaged/Sold by Weight

1 litre (1 qt.) 660g net material weight    
4 litres (1 gal.) 3.0kgs net    
18.9 litres (5 gal.) 15kgs net    
200 litres (45 gal.) 170kgs net  

 

Composition
Mixture of polymers, fillers and organic compounds in Acetone.

 

Appearance Solids
Grey, brushable liquid. 23% - 26% by weight

 

Viscosity
Specific Gravity
~600 cps
1.40

 

Flash Point Shelf Life
5.5oC (42oF) 1 year (in unopened containers)

 

Oil Resistance
Operating Temperature
Excellent -40oC to 93oC (-40oF to 200oF)

 

Chemical Resiatance Storage
Refer to Normac 900R or XL2000 Chemical Resistance Chart. Store in a dry place at ambient temperatures, away from open flame, sparks and direct sunlight.

Safety, Handling and Toxicity
Flammability
See Normac XL4001 Material Safety Data Sheet (MSDS) for specific handling, safe working practices and hazards. Normac XL4001 is a flammable product in shipping, storage and application.

 

Application
For uniform mixing, cement containers should be agitated or drums rotated before use or repackaging.  
Stir XL4001 thoroughly before use and occasionally during use to avoid any possible solids separation.

Specific application sheets are available for the following:

1.  Bonding rubber sheeting to steel.
2.  Bonding urethane sheeting to steel.
3.  Bonding urethane sheeting with bonding layer to steel.

Rubber to Steel: Metallic surfaces must be free of oils, grease or other contaminants.  Rust and mill-scale should be removed by grit blasting to NACE #2 near white or better.  A profile of 2-3 mils is preferred.  The rubber, if cured should have all mould release agents removed and buffed with 24 grit or stiff bristled wire brush at a speed as not to burn the rubber surface.  Apply a first coat of Normac XL4001 to the prepared metal surface  with a scrubbing-like motion and apply your first coat of Normac 900R to the prepared rubber surface. Allow the coat of Normac XL4001 to dry for at least 1 hour at 21oC. Should the ambient temperature be lower, allow a 50% increase in drying time for every 3oC drop in temperature.  In high humidity or low temperatures use a hot air gun to help dry and repel moisture. After the required drying time a second coat of Normac 900R is applied to each surface in a manner as not to disturb the primary coat.  Let dry until tacky, adhere both surfaces and stitch down or apply pressure.  The maximum bond strength will develop to its optimum in 21 days, however, initial bond strengths will be sufficiently high after 6 hrs. and are ready for most services.

Should primed (XL4001) surfaces be left longer than 7 days reprime with XL4001 prior to rubber cement application.


Rubber to Other Substrates: for adhering other elastomeric materials or special environmental conditions, please contact our main office.  Trials, if possible are recommended before production to determine the suitability of this compound with individual materials and to determine the preferred method of application.

 

Thinner
Acetone.

 

Coverage
8.8 m2 /kg.(43 sq.ft./lb.) theoretical.


Rev.1

   

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