OKS 240 – Copper Paste

High-temperature screw paste on copper basis for preventing corrosion, seizing and binding.

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Areas of application

Assembling screw threaded connections subjected to high temperatures and corrosive influences
Screwed connections at pipe fittings, flange joints and fittings in superheated steam lines
Combustion chamber screwed connections and mounting bolts of gas and oil burners
Screwed connections at combustion engines, exhaust systems, silencers and exhaust gas pipe connections

Advantages and benefits

Allows reliable non-destructive dismantling even after longer operating period under high operating and ambient temperatures
Provides an optimal ratio of screw pretension and tightening torque
Electrically conductive
Also available as spray version OKS 241

Technical specifications

lower operating temperature: -30 °C
upper operating temperature: 1100 °C (separation)
four-ball test rig welding load: 3,000 N
Total friction coefficient (μ): 0.13 / 0.14 (screw ISO 4017 M10x55-8.8 black-oxide, nut ISO 4032 M10-10 black-oxide / Screw ISO 4017 A2 M10x55-70, Nut ISO 4032 A2 M10-70)
UFI: E9H1-7007-M00H-J2S2

Applications

For best adhesion, clean contamination and other lubricants from thread and slide surfaces. Best way is to clean mechanically first (for example, with a wire brush) and then with OKS 2610/OKS 2611 universal cleaning agent. Apply sufficient OKS 240 evenly to the head or nut contact surface and to the thread by using a brush, spatula, etc. Do not use paste instead of grease and mix only with suitable lubricants.