Transportation & Industrial
MOLYKOTE® Cu-7439 Plus Paste V1
Copper paste for components subjected to high temperatures, high pressures and corrosive influences
Standard(1) Test Unit Result
• Wide service-temperature range (-30 to +650°C)
• Good pressure resistance and load carrying capacity • Good corrosion protection
• Very adhesive and resistant against water washout
• Low evaporation
• No drop point
• Powdered copper
• Partly synthetic oil
• MOLYKOTE® Cu-7439 Plus Paste V1 is available in a spray
and can be used wherever a paste in spray form may be desired
Well-suited for all areas that need to be protected against water, steam and corrosion (e.g., brake mechanisms, flange seals, exhauster bolts, threaded connections). Allows for trouble-free disassembly of machine components even after long service intervals in environment such as steel works, glass manufacturing, refineries and petrochemical facilities, and on agricultural and marine vehicles.
How to use
If possible, contact surfaces should be cleaned. Then apply paste with a brush or cloth. Excess lubricant need not be removed. MOLYKOTE® Cu-7439 Plus Paste can be used in grease guns and centralized lubrication systems.
If using the spray, MOLYKOTE® Cu7439 Plus Paste V1 should be applied in a sweeping motion to obtain a thin, uniform coating. Avoid over application.
Specification writers: These values are not intended for use in preparing specifications. Please contact your local MOLYKOTE® sales representative prior to writing specifications on this product.
Consistency, density, viscosity
Copper – colored
320-370 1.0 1,100
-30 to +650; paste effective to +300
ISO 2137 DIN 53 217 DIN 51 562
Unworked penetration mm/10 Density at 20°C (68°F) g/ml
Base oil viscosity at mm2/s 40°C (104°F)
Service temperature °C
°F -22 to +1,202; paste
effective to +572
Drop point °C
Load-carrying capacity, wear protection, service life
DIN 51 350 pt.4
DIN 51 350 pt.5
Four-ball tester Weld load
Wear factor under 800 N load
N 2,500 mm 1.0
N >20,000 0.07
Coefficient of friction
Press-fit test μ = (1)DIN: Deutsche Industrie Norm.
Continued on next page
Standard Test Unit Result
Typical properties (continued)
PRODUCT SAFETY INFORMATION REQUIRED FOR SAFE USE IS NOT INCLUDED IN THIS DOCUMENT. BEFORE HANDLING, READ SAFETY DATA SHEETS AND CONTAINER LABELS FOR SAFE USE, PHYSICAL AND HEALTH HAZARD INFORMATION.
Usable life and storage
When stored at or below 20°C(68°F) in the original unopened containers, this product has a usable life of 60 months from the date of production.
This product is available in different standard container sizes. Detailed container size information should be obtained from your nearest MOLYKOTE® sales office or MOLYKOTE® distributor. This product is also available in spray form, MOLYKOTE® Cu-7439 Plus Paste Spray V1.
Coefficient of friction of bolt connection M12, 8.8, blackened surface
– μ thread -μhead
Initial break-away torque
(M12 with starting torque Ma=80 Nm and heat treatment at 300°C/572°F, 21 h, bolt material: C 45, 8.8, mat.no. 1.0503)
Water resistance, static, evaluation
0.17 0.10 110
1 @ 90oC
DIN 51 807 pt.1
DIN 52 802 SKF-Emcor method
Degree of corrosion (1)DIN: Deutsche Industrie Norm.
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The information set forth herein is furnished free of charge and is based on technical data that DuPont believes to be reliable and falls within the normal range of properties. It is intended for use by persons having technical skill, at their own discretion and risk. This data should not be used to establish specification limits nor used alone as the basis of design. Handling precaution information is given with the understanding that those using it will satisfy themselves that their particular conditions of use present no health or safety hazards. Since conditions of product use and disposal are outside our control, we make no warranties, express or implied, and assume no liability in connection with any use of this information. As with any product, evaluation under end use conditions prior to specification is essential. Nothing herein is to be taken as a license to operate or a recommendation to infringe on patents.
Form No. 71-0182H-01 (11/20) AGP16261