Chemask LF - Lead-Free Solder Mask
Chemask LF Lead-Free Solder Masking Agent is a temporary, fast curing, peelable solder masking agent formulated for use in high-temperature lead-free applications. It is a temperature resistant coating that protects component-free areas of the PCB during wave soldering. Chemask Lead-Free can be introduced into the preheat oven within 4 minutes of application without adverse effects. Use to protect pins, posts, contacts and edge connections during conformal coating processes.
Key Features:
- Formulated for use with lead-free applications
- Can also be used with Tin/Lead solders
- Usable within five minutes of application with preheat cycles
- Provides short-term high temperature protection up to 550°F (288°C)
- RoHS compliant
Typical Applications:
- Ideal for protecting contacts during lead-free soldering
- Component-free areas for soldering
- Components and sockets
- Pin connectors during soldering
- Temperature-sensitive components during wave soldering
Product Key Properties: Natural latex rubber base material, pink color, stable in hydrocarbon, hydrofluorocarbon, chlorinated, and halogenated solvents (cured mask). Compatible with all types of flux. Temperature stability up to 550°F/ 288°C. Tack-free drying time of 15 min. (10 mils @ 77°F/25°C). Cure time of 30 min. (10 mils @ 77°F/25°C). Viscosity (@ 77°F) 190,000 cps ( 500 cps). Adjusted with Deionized water. Solids Content 80%. Nonflammable. Weight/Gallon 7.2 lbs. Shelflife 2 years. RoHS Compliant.
Product Performance Benefits: Stable to 550°F (288°C) Can be used in lead-free or Tin/Lead applications Compatible with rosin, no clean, and water soluble fluxes Unaffected by cleaning solvents Leaves no residue non-contaminating Ready for wave solder in 4 minutes Dries tack free in 15 minutes RoHS compliant