Chemtronics Chemask® W - Water Soluble CW8 - Manual

PRODUCT DESCRIPTION
Chemask

W solder mask is water soluble
and designed to be removed with most
aqueous cleaning systems. Chemask

W
contains high temperature compounds that
protect component-free areas from solder
during wave soldering. This water soluble
formulation is stable to rosin, organic and
inorganic fluxes.
 Protects boards from molten solder to
515
°F (268°C)
 Compatible with most flux types
 Leaves no corrosive residue
 Non-contaminating
 UV Detectable
TYPICAL APPLICATIONS
During wave soldering, Chemask

W
protects:
 Component Free Areas
 Gold Connectors
 Gold Fingers
 Pin Connectors
TYPICAL PRODUCT DATA AND
PHYSICAL PROPERTIES
Base Material Synthetic Resin
Color Blue
Solvent Stability Dissolves in water with
or without detergent
Flux Compatibility Aqueous Flux
Temperature Stability 515
°F (268°C)
Tack-Free Drying Time
(10 mils @ 77
°F)
20 min.
Cure Time
(10 mils @ 77
°F)
1 hr.
Viscosity (@ 77
°F)
(
± 300 cps)
15,000 cps
Viscosity Adjusted With DI Water
Contains UV Indicator Yes
Solids Content ~ 40%
Flash Point Nonflammable
Weight/Gallon 8.8 lbs.
Shelflife 1 year
COMPATIBILITY
Chemask

W is generally compatible with
most materials used in printed circuit board
fabrication. As with any solder masking
agent, compatibility with substrate must be
determined on a non-critical area prior to
use.
TDS # CW8
CHEMTRONICS
Technical Data Sheet
Chemask

W