Medium Open Time FDA Compliant Bulk Hot Melt Adhesive for Product Assembly

Extended Open Time APAO Hot Melt for Flexible and Controlled Assembly

This medium open time bulk hot melt adhesive is designed for product assembly applications that require extended working time and precise component positioning. Formulated with APAO ethylene copolymer chemistry, it delivers excellent tack, flexibility, and reliable adhesion across a range of substrates including plastics, wire and cable, and filtration components.

With an open time of approximately 60 seconds, this adhesive is ideal for applications where alignment and adjustability are critical, including automotive, construction, and low pressure molding systems. It is FDA compliant under 21 CFR 175.105 for indirect food contact, supporting use in applications where regulatory compliance is required.

Performance Benefits of Medium Open Time APAO Hot Melt Adhesive

• Extended Open Time for Precise Positioning: Approximately 60 seconds of working time allows for accurate part placement and adjustment.
• Excellent Tack and Wet-Out: Promotes strong initial grab and improved substrate contact.
• Flexible Bond Performance: Maintains flexibility for applications requiring movement or stress resistance.
• Versatile APAO Chemistry: Bonds well to a wide range of substrates including plastics, wire and cable, and filtration materials.
• Ideal for Complex Assemblies: Supports applications where alignment, coverage, and control are critical.
• FDA Compliant Formulation: Meets FDA 21 CFR 175.105 requirements for indirect food contact applications.

Specifications

• Chemistry: Amorphous Polyalphaolefin (APAO)
• Polymer Type: High Ethylene Copolymer
• Melt Viscosity: 3,500 cPs @ 374°F (190°C)
• Softening Point (Ring & Ball): 270°F (132°C)
• Glass Transition Temperature: -22°F (-30°C)
• Open Time: 60 seconds
• Tensile Strength: 50 psi (0.34 MPa)
• Density: 0.0311 lb/in³ (0.860 g/cc)
• FDA Status: Compliant with FDA 21 CFR 175.105

Hot Melt Adhesive Applications for Automotive, Construction, and Industrial Use

• Automotive assembly (battery assembly and component bonding)
• Building and construction (window sealants and carpet backing)
• Wire and cable (filling and flooding applications)
• Filtration systems (HVAC, transportation cabin filters, water and fluid filtration)
• Low pressure molding and specialty adhesive formulations
• Applications requiring extended open time, flexibility, and high tack