Thermal-curing Solder mask / Resist for Rigid Boards
For lower resolution down to about 150 microns we offer a range of excellent screen-printable thermal curing soldermask. These thermal curing solder resists are usually preferred for high-reliability application where compatible with the resolution requirements of the PCBs. Various color and viscosity adjustments help to find the optimum solution for application engineers. The table below represents a cross-section of the available thermal curing soldermask products. Information ahead is available by our global or local sales representatives (see Contacts).
Thermal Curing Solder Mask Key Features
 |  | Application by screen-printing, absolutely non-bleeding | | | Good printing definition, resolution down to about 150 microns | | | Good edge coverage | | | Reliable edge coverage | | | Excellent reliability also in harsh environments | | | State of the art solder bath stability (265°C, 20 sec) | | | Various color and viscosity adjustments available | | | Very high solids content >75% | | | Long pot-life after mixing the 2 components (8 h) | | | Especially suited for hot-air solder-levelling (HASL) |
Overview most important Products (for details contact our local or global sales staff)
Product Name |
Color | Properties & Explanations | | | |
SD 2448 NB |
Black |
Especially suited for automotive high reliability and lower resolution boards, non-bleeding, excellent definition, very high solid content, excellent chemical resistance, conforms to IPC-SM-(840 B)
Solder resistance: 20 s at 265 °C, 10 s at 288 °C |
SD 2448 NB-M/21 |
Black |
SD 2468 NB |
Green |
SD 2468 NB/M21 | Green |
SD 2442 NB-M |
Black |
Excellent edge coverage, no bleeding, excellent chemical resistance, UL 94 V0
Especially suited for mass soldering and selective soldering being conducted at the same time
Solder resistance: 20 s at 265 °C
|
SD 2462 NB-M |
Green |
SD 2462 NB-M/550 |
Green |
SD 2462 NB-M-T |
Green |
| SD 2494 NB-SM | White | Non-yellowing, no solder balls, excellent adhesion, non-bleeding, good for HASL, UL 94 V0, Solder resistance: 20 s at 265 °C | | | |
| Explanations: NB=non-bleeding, SM=semi-matte, M= matte, e.g. 21=viscosity adjustment |
Thermal curing solder mask / resist Manufactured by Lackwerke Peters distributed and serviced in Asia by Atotech
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