Gear Shield P – Sump Bath | Semi Synthetic Gear Oil

Product Description - Open Gears Lubrication - Semi-Synthetic Gear oil

Petron GEAR SHIELD® P is semi synthetic Gear oil for kiln girth gear lubrication and other open gear lubrication applications. 

Gear Shield P open-gear grease is a high viscosity and is one of the high-performance Engineered open gear lubricants of the Petron Gear Shield series,  designed for open gear drives on stationary rotating machinery. Gear Shield P can be applied through an auto-lube system, sump, or bath-type application.

Petron Gear Shield P is a high viscosity and is a semi-synthetic gear oil type lubricant that is part of a long family of proven open-gear lubes open gear lubrication. Gear Shield P is a high-viscosity fluid that provides superior separation of gear teeth on rotating machinery and it is especially effective on rotating machinery that operates at elevated temperatures. These units would include kilns, driers, and coal mills. 

Gear Shield P is a blend of high-viscosity semi synthetic gear oil and mineral base fluids as well as a highly refined resin.  These resins are combined with E.P. and oxidation-resistant additives that further enhance gear protection. Petron Gear Shield P is the open gear lubricant of choice for mills and kilns in grinding and indurating processing. It is also the product of choice in the power generation and cement industries where elevated heat is encountered on a regular basis. 

Features & Benefits of Petron Open Gear semi-synthetic lube oil - For Open Gear Lubrication - Open gear lube for sump bath

  • High Viscosity, semi synthetic gear oil fluid designed to lubricate heavily loaded open gears.

  • Semi synthetic gear oil, Anti-wear and extreme pressure additives provide unparalleled protection in the most heavily loaded zones of gear tooth mesh.

  • Designed for auto-lube systems, sump, or bathtype lube systems.

  • No build-up in gear tooth roots.

  • Drains freely from gear guards.

  • Pumps freely down to 15º F/-9º C. 

  • Environmentally friendly open gear grease. Does not contain chlorinated solvents or lead and is free of all carcinogens.

  • Excellent for elevated temperatures such as kilns and driers

Open Gear Grease Application - Kiln girth gear lubrication & Cement & other applications

Petron Gear Shield P semi synthetic gear oil may be applied by spraying, sump, or bath-type lube system. Petron Gear Shield P synthetic lube oil is designed to be sprayed through all automatic (open gear grease spray) lubrication equipment. 

Petron Gear Shield P is available in pails, kegs, drums, bin tanks, and tank truck.

Petron Gear Shield P for open gear lubrication, exceeds OEM and AGMA base oil viscosity requirements for open gear lubricants applied by intermittent spray application.

Gear Shield P - For Open Gear Lubrication - Semi Synthetic Gear Oil


Test Method

Typical Data



Viscous, Semi-Fluid

Specific Gravity

ASTM D-1298


Copper Corrosion

ASTM D-130


Flash Point


> 245°F (>118oC)

4 Ball, Weld, Kg

ASTM D-2596


Load Wear Index

ASTM D-2596


4 Ball Wear (scar diam., mm)

ASTM D-2266


Timken OK Load, Lbs.

ASTM D-2509


Ventmeter @ 30°F

Lincoln VE-1

30 seconds <300 psi

Viscosity, cSt @ 100º C (Undiluted)

ASTM D-445

1150 to 1350



Viscosity, cSt @ 40º C (Diluted)

ASTM D-445

5800 to 6800

Semi Synthetic Gear Oil Type Product - Girth Gear Grease

Gear Shield®

Semi synthetic gear oil high viscosity girth gear grease P, synthetic lube oil, especially effective on rotating machinery operating at elevated temp. e.g. kilns, driers, and coal mills.  Use for at elevated temp. above 93°C (200°F).

Semi Synthetic Gear Oil

Table of Contents

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Contact us - Open Gear lube for Sump Bath

Please send your inquiries to Performance Products Tech (FZE), PPT (FZE), and Sharjah (UAE). Email:

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