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UNI-REZ™ 2641

1 of 47 products in this brand
UNI-REZ 2641 hot melt polyamide adhesive is a resin based on dimer acid. UNI-REZ 2641 hot melt polyamide adhesive has excellent green strength, chemical resistance and adhesion to PVC.

Chemical Family: Polyamides

End Uses: Hot Melt Adhesive

Compatible Substrates & Surfaces: Plastics

Features: Blocking Resistance, Chemical Resistance, Excellent Adhesion

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Identification & Functionality

Chemical Family
CASE Ingredients Functions
Technologies

Features & Benefits

Product Highlights
  • Good hot melt stability
  • Heat resistance
  • Excellent blocking resistance
  • Chemical and grease resistance
  • Good adhesion to plastic including plasticized PVC

Applications & Uses

Compatible Substrates & Surfaces
Adhesive & Sealant Type
Applications
  • Multipurpose assembly
  • Packaging
  • Automotive

Properties

Sales Specifications
ValueUnitsTest Method / Conditions
Softening Point (Ring & Ball)135 - 150°CASTM E28 (AQCM 003)
Viscosity LVT Brookfield, Spindle #31, cps/mPA.s 190°C6000 - 11000ASTM D3236 (AQCM 146)
Color , 40% in n-Butanolmax. 6GardnerAQCM 002
Typical Properties
ValueUnitsTest Method / Conditions
Acid Number10.0mg KOH/gAQCM 001
Amine Number0.6mg KOH/gAQCM 139
Color , 40% in n-Butanol5.0GardnerAQCM 002
Moisture Quintel Moisture Analyzer0.15%AQCM 056
Tensile Strength520 (3.6)MpaASTM D1708
Elongation at Break700.0%ASTM D1708
Tensile Modulus7000 (48)MpaASTM D638
Peel Strength pli, plasticized PVC to itself30 (131)N/25mmASTM D1876
Mandrel Bend Flexibility (1” diameter), pass-10.0°CASTM D3111
Open Time seconds, 10 mil film20.0ASTM D4497
Shear Adhesion Failure Temp (SAFT), 1 kg. wt. C130.0ASTM D4498
Hardness85Shore AASTM D2240-97
Water Absorption after 24 hours0.6%ASTM D570
Water Absorption after 7 days1.6%ASTM D570
Pounds per gallon 25°C8.2 (0.98)g/ccASTM D792
Flash Point (COC)271 (520)°C (°F)ASTM D92-16

Technical Details & Test Data

Viscosity/Temperature Curve

Kraton UNI-REZ 2641 Viscosity/Temperature Curve

Packaging & Availability

Packaging
  • UNI-REZ 2641 hot melt polyamide adhesive is in pellet form, packaged in poly-foil lined multi-wall bags, 40 or 50 lb . net

Storage & Handling

Storage

This product will slowly absorb moisture from the air, which may cause foaming when the resin is melted and could result in inadequate bonds. Partially used containers should be closed tightly, or the remaining resin transferred into an airtight container and kept in a cool, dry area.