The Universal Selection Source: Adhesives Ingredients

Formulation

SBS Solvent-Borne Panel Mastic Adhesive by Kraton

Applicable Type
Applicable Industrial Sectors

Typical Formulation Ingredients

Phase
Ingredient
Parts by weight
Styrene butadiene styrene (SBS D-1101, Kraton) 
   
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    Rosin ester tackifier (Pentalyn H, Pinova) 
       
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    C9 enblock tackifier (Picco 6140, Eastman Chemical) 
       
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    Calcium carbonate 
       
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    Antioxidant (Irganox 1010, BASF) 
       
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    Hexane 
       
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    Cyclohexane 
       
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    Toluene 
       
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    Typical Properties

    Properties
    Optimum open time, min 
       
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    Lap shear strength, 1 day after assembly, MPa 
       
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    Lap shear strength, 10 days after assembly, MPa 
       
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    Processing

       
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  • Applicable Base Polymer Properties

    Styrene block copolymers (SBCs) offer cohesion, strength, and heat resistance for both pressure sensitive adhesives (PSAs) and non-pressure sensitive adhesives. The styrene phase forms a physically crosslinked network in the adhesive at room temperature. Styrene butadiene styrene (SBS) copolymers are the least expensive of the SBCs and have the lowest cost. They are generally used in non-pressure sensitive formulations. Some of the advantages of SBSs in solvent borne adhesives and sealants are:

    • Polymers are directly soluble: no milling necessary
    • Solution times are shorter: greater productivity and efficiency
    • Solutions are more uniform: better control and reproducibility
    • Solution viscosity is lower: higher solids level, lower solvent cost, greater thickness build
    • Solutions are stable: longer shelf life.

    Resulting Properties

    The formulation is for a mastic to be used in construction projects such as attaching wall panels and plywood subflooring. The SBS block copolymers are particularly well suited for this application because of their high uncured strength.

    (Source:Kraton)

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