Foshan Dechenghezhong Chemistry co.,LTD
No,12 Yuyang 2nd Road, Huchong Industrial District, Nanzhuang Town,
Chancheng District, Foshan City, Guangdong, China
Tel:0086-757-82012410
Fax:0086-757-82012430
Website:http://dchz.en.alibaba.com
E-mail:fsdchz@outlook.com
DCHZ-Tec501 Water Displacing Rust Preventive
The DCHZ-Tec501 is a solvent based rust and corrosion inhibitors and lubricants for ferrous and
non-ferrous metals. It rapidly displace moisture from metal pores and recesses leaving a thin,
transparent film which seals out moisture. The films are continuous, polar and non-conductive.
It will not gum under high humidity or high temperature conditions. It is harmless to plastic, rubber,
paints and certain silicones.
RECOMMENDED USES
It can be applied to wet or dry metal parts for protection while in process or storage.Used to seal
and enhance the depth of black chemical conversion metal finishes.
Excellent protection for unfinished dies, jigs, tools, machine surfaces, office machines, firearms,
fasteners, automotive and marine equipment. DCHZ-Tec 501 penetrates and loosen rusty “frozen”
parts.
PROPERTIES
|
Film Characteristic
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slightly oily
|
|
Humidity test (ASTM-D-1748)
|
35 days
|
|
Salt spray test (ASTM-B117)
|
96 hours.
|
|
Corrosion Test Mil-C-23411
|
pass
|
|
Corrosion Test Mil-C-81309
|
pass
|
|
Water displacement(Mil-C-16173D, Grade 3)
|
pass
|
|
Stain test (Mil-C-22235A)
|
pass
|
|
Approximate coverage, sq. ft./gallon
|
2,200
|
|
Approximate film thickness-dip
|
0.19 mil.
|
|
Flash point T.O.C.
|
126°F
|
|
Weight per gallon , pounds
|
6.72
|
APPLICATION
The DCHZ-Tec501 formulations is used as received, and applied by dipping, brushing or low pressure spray.
Tanks and other equipment may be constructed of mild steel.
When used as a sealant for black chemical conversion finishes, the parts are immersed for one (1)
minute in the DCHZ-Tec501 solution while still wet from the final water rinse in the process.
The DCHZ-Tec501 will displace the rinse water to the bottom of the tank, where it can be
periodically drawn off. It is recommended that a sight gauge be built into the side of the tank and
used to determine the level of water in the tank and to assist in determining when the water level
has been drawn down sufficiently to avoid immersing the work in the water rather than the DCHZ-Tec501 solution. It is recommended that baskets and rotating barrels used to contain parts for
blackening and rinsing not be immersed in the DCHZ-Tec501 solutions because they will become
coated with the DCHZ-Tec501 solution and could contaminate by run off of the DCHZ-Tec501
into the other solutions in the process while being transported back to the beginning of the line.
The DCHZ-Tec tank should contain an unload chute and catch basket(s) to receive the parts
upon unloading the baskets and barrels.Tanks should be kept covered when not in use to minimize
evaporation.The DCHZ-Tec501 solution is formulated to dry rapidly (510 minutes) at ambient
temperatures and work may be unloaded from the tank directly into tote pans or bins for drying.
Small parts can be rapidly dried in spin dryers.DCHZ-Tec501 finishes may be removed with
solvents, chlorinated solvent vapor degreasers or with alkaline soak cleaners.
CAUTION
Contains petroleum distillates. Solutions are combustible. Harmful or fatal if swallowed.
Use with adequate ventilation. If swallowed, do not induce vomiting. Call a physician immediately.
Wear eye protection (glasses, goggles or face shield) when preparing solutions and working with
solutions. Avoid prolonged contact with skin. Wash from skin with soap and water. For eye contact,
flush freely with water and get medical attention.
