LOCTITE DSP 190024
Harmonization Code : 3919.10.80 | Other self-adhesive plastic rolls not exceeding 20 cm wide.
Main features
- Fast UV Fixture Development
- Thixotropic Edgebond Placement
- No-Post-Cure Electronics Bonding
Product Description
LOCTITE DSP 190024/S is a one-component UV/visible-cure acrylate adhesive developed for edgebonding electronic components on printed circuit boards. The bone-white to beige translucent paste combines medium viscosity with thixotropic behavior to help limit material migration after placement. In a zero-gap glass-slide test at 6 mW/cm^2 and 365 nm, typical fixture time is 10 seconds or less. The one-component adhesive cures with UV or visible light and does not require a post cure.
Key features
- Fast UV Fixture: Typical fixture time is 10 seconds or less on glass microscope slides with zero gap at 6 mW/cm^2, measured at 365 nm; fixture is defined as 0.1 N/mm^2 shear strength.
- Migration-Limiting Rheology: Medium-viscosity thixotropic paste is designed to reduce material migration after application.
- UV/Visible-Light Cure: The one-component adhesive requires no post cure.
Applications
Edgebonding and bonding electronic components on printed circuit boards.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Appearance
Bone-white to beige translucent paste
Specific Gravity
1.1
Physical Properties
Viscosity
44,000 mPa.s
Thermal Properties
Glass Transition Temperature (Tg)
-39 °C / 77 °C
Thermal Conductivity
0.17 W/m.K
Mechanical Properties
Elongation
186 %
Electrical Properties
Volume Resistivity
1.13×10¹⁷ Ohms⋅cm
Other Properties
Storage Temperature
8 to 28 °C
Additional Information
Technical properties
As-supplied properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Viscosity | 44,000 | mPa s | HBT; spindle TB Helipath; 10 rpm; 25 deg C |
| Specific gravity | 1.1 | 25 deg C | |
| Recommended UV intensity | 30 | mW/cm^2 | Zeta 7411 UV flood system |
| Cure wavelength | 365 | nm | Recommended UV cure condition |
| Recommended UV cure time | 80 | s | 30 mW/cm^2 at 365 nm |
| UV fixture time | 10 or less | s | 6 mW/cm^2 at 365 nm; glass slides; 0 gap; 0.1 N/mm^2 shear threshold |
Technical properties
Final-state properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Glass transition temperatures | -39 / 77 | deg C | Tg 1 / Tg 2; ASTM D1640 |
| Thermal conductivity | 0.17 | W/(m K) | ASTM E1530 |
| Elongation | 186 | % | Documented cured property |
| Tensile modulus | 175 | N/mm^2 | ASTM D882 |
| Tensile strength | 15.6 | N/mm^2 | ASTM D882 |
| Volume resistivity | 1.13 x 10^17 | ohm-cm | 100 V |
| Block shear strength | 12.56 | N/mm^2 | ASTM 700; polycarbonate to polycarbonate |
