PRODUCT DESCRIPTION
Chemask® is a fast curing peelable solder
masking agent. It contains a high
temperature resistant compound that protects
component-free areas during wave soldering.
Chemask® may be used to protect pins, posts,
contacts and edge connections during
conformal coating processes.
Stable to 515°F (268°C)
Compatible with rosin, water soluble
fluxes and cleaning solvents
Leaves no residue
Dries tack free in 30 minutes
Non-contaminating
TYPICAL APPLICATIONS
Chemask® protects:
Component Free Areas for Soldering
Components
Pin Connectors During Soldering
Temperature Sensitive Components
During Wave Soldering
Sockets
Board Areas From Conformal Coating
TYPICAL PRODUCT DATA AND
PHYSICAL PROPERTIES
Base Material Natural latex rubber
Color Pink
Solvent Stability Stable in all Hydrocarbons,
Hydrofluorocarbons, water
and chlorinated solvents
Flux Compatibility All Types
Temperature Stability 515°F
Tack-Free Drying Time
(10 mils @ 77°F) 15 min.
Cure Time
(10 mils @ 77°F) 30 min.
Viscosity (@ 77°F)
(± 300 cps) 18,000 cps
Viscosity Adjusted With DI Water
Solids Content ~ 60%
Flash Point Nonflammable
Weight/Gallon 7.2 lbs.
Shelflife 2 year
RoHS/WEEE
Status
COMPATIBILITY
Chemask® 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 # CM8E
CHEMTRONICS®
Technical Data Sheet
Chemask®
APPLICATION METHOD
Squeeze Bottle/Syringe Yes
Spatula Yes
Screening No
Automatic Dispensing Yes
Removal/Clean-up By Hand
USAGE INSTRUCTIONS
For industrial use only.
Read MSDS carefully prior to use.
Chemask® solder masking agent is
engineered for all electronic manufacturing
applications. When applying by hand using
squeeze bottle or spatula, insure that all areas
of the pretinned hole are evenly covered on
the side to be soldered. Automatic
dispensing equipment may also be used as
appropriate.
REMOVAL: After allowing the mask to
become fully cured, peelable solder mask can
be removed by hand or by the use of
tweezers. Depending on ambient conditions,
peelable mask may remain on assemblies for
extended periods of time prior to component
insertion.
AVAILABILITY
CM8E 200 ml. Squeeze Bottle
CM1 3.7 L. Liquid
TECHNICAL & APPLICATION
ASSISTANCE
Chemtronics® provides a technical hotline to
answer your technical and application related
questions. The toll free number is: 1-800-
TECH-401.
ENVIRONMENTAL IMPACT DATA
ENVIRONMENTAL IMPACT DATA
CFC 0.0% VOC 3.1%
HCFC 0.0% HFC 0.0%
Cl. Solv. 0.0% ODP 0.00
CFC, HCFC, CL. SOLV., VOC, and HFC numbers
shown are the content by weight. Ozone depletion
potential (ODP) is determined in accordance with the
Montreal Protocol and U.S. Clean Air Act of 1990. The
ODP of this product is 0.0. It is the sum of the ODP of
the substances that may contribute to the depletion of
stratospheric ozone, based upon the weight of each
substance in the product’s formulation.
NOTE:
This information is believed to be accurate. It is
intended for professional end users having the
skills to evaluate and use the data properly.
ITW CHEMTRONICS® does not guarantee the
accuracy of the data and assumes no liability in
connection with damages incurred while using
it.
MANUFACTURED BY:
ITW CHEMTRONICS
8125 COBB CENTER DRIVE
KENNESAW, GA 30152
1-770-424-4888 REV. F (06/06)
Chemtronics® and Chemask® are registered trademarks
of ITW Chemtronics. All rights reserved.
DISTRIBUTED BY:
