BOSTIK 9438

Harmonization Code : 3214.10.00 | Putty and other mastics | Resin cements, caulking compounds and other mastics

BOSTIK 9438

Main features

  • Very High Heat Resistance
  • Extended Working and Pot Life
  • Excellent Hot Tack

Product Description

Bostik Thermogrip 9438 combines very high heat resistance, strong adhesion to a variety of substrates, and long working and pot life in a hot melt adhesive for automotive and general product assembly. Excellent hot tack is paired with a suggested running temperature of 356 to 392 deg F and a 305 deg F softening point. Typical automotive uses include door panel bonding, headliner attachment, and package tray attachment. The product is selected where hot-melt processing requires both extended working time and heat-resistant bonded performance.

Key features

  • Very high heat resistance: Designed for hot-melt bonding where elevated-temperature performance is a key selection factor.
  • Long working window: Long working time and long pot life provide additional assembly time.
  • Excellent hot tack: The hot melt develops excellent tack for automotive and product-assembly bonding.

Applications

Automotive and general product-assembly bonding, including door panels, headliners, and package trays.

Product Family

BOSTIK 9438

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Technical Specifications

Physical Properties
Viscosity
Viscosity is a measurement of a fluid’s resistance to flow. Viscosity is commonly measured in centiPoise (cP). One cP is defined as the viscosity of water and all other viscosities are derived from this base. MPa is another common unit with a 1:1 conversion to cP. A product like honey would have a much higher viscosity -around 10,000 cPs- compared to water. As a result, honey would flow much slower out of a tipped glass than water would. The viscosity of a material can be decreased with an increase in temperature in order to better suit an application
@190.6C: 30,200 mPa.s
Thermal Properties
Operating Temperature
180-200 °C
General Properties
Density (g)
0.9 g/cm3

Additional Information

Technical properties

As-supplied / before-processing properties

PropertyValueUnitMethod / condition
Thermosel viscosity30,200cPBrookfield; ASTM D3236; 375 deg F (190.6 deg C)
Thermosel viscosity21,100cPBrookfield; ASTM D3236; 400 deg F (204.4 deg C)
Softening point305deg FHerzog; ASTM E28; TDS also gives 151.7 deg C
Density0.9g/cc77 deg F (25 deg C)
Shelf life900daysClean, dry place; original package; average temperature <=25 deg C; storage temperature <=40 deg C

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