Brand: 3M™
Product Number: 3738
Technologies: Hot Melt Adhesive
Color: Tan
Cure Type: Thermoplastic (Hot Melt)
Package Sizes:
Shelf Life: 24 months
3M™ Hot Melt Adhesive 3738 is a 100% solids, thermoplastic adhesive designed for fast and strong bonding of various substrates, including wood, plain and coated corrugated materials, sand cores, foams, many plastics, and other lightweight materials. It offers low to medium viscosity and long open times, making it ideal for large assemblies and surfaces. This adhesive quickly cools, hardens, and reaches bond strength in seconds, eliminating the need for clamping or extended drying times.
| Attribute Name | Test Method | Temperature | Value |
|---|---|---|---|
| Color | – | – | Tan |
| Density | – | – | 0.95 g/cm³ (0.034 lb/in³) |
| Open Time | OSB | – | 50 s¹ |
| Flash Point | ASTM D92-72 | – | 288°C (550°F)² |
| Delivery Time | – | – | 35 s³ |
| Viscosity | Brookfield Thermocel Viscometer (#27 Spindle @ 10 RPM) | 191°C (375°F) | 2,875 cP⁴ |
¹ Open time based on a 3.2 mm (1/8 in) semicircular bead on non-metallic substrates at 24°C (75°F).
² Measured using the Cleveland Open Cup method.
³ Extrusion time for one 25 x 76 mm (1 x 3 in) PG cartridge.
⁴ Measured using a Brookfield viscometer.
| Attribute Name | Test Method | Temperature | Substrate | Value |
|---|---|---|---|---|
| 180° Peel Adhesion | – | 23°C (73°F) | Flexible Canvas to Douglas Fir | 23 N/cm (208 oz/in) |
| Overlap Shear Strength | – | 23°C (73°F) | Douglas Fir | 26 kg/cm² (375 lb/in²) |
| Ball & Ring Melt Point | ASTM E28-67 | – | – | 86°C (186°F) |
| Application Temperature | – | – | – | 177 – 196°C (350 – 385°F)¹ |
| Temperature Resistance | – | – | – | 54°C (130°F)² |
¹ Recommended application temperature range to regulate viscosity, delivery rate, and pot life.
² Maximum temperature at which the adhesive supports a 14 kPa (2 psi) dead load.
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As the year draws to a close and the Christmas season arrives, Avantek Viet Nam would like to extend our warmest Christmas greetings to all our valued customers, partners, and friends.
Avantek Viet Nam is a dynamic MRO, direct materials and equipment supplier that brings advanced technological solutions to maximize satisfaction of customers.
We are expert in import and export of adhesives, accessories and equipment in both domestic and cosmetic industrial fields, production and technology research and development.
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