



TriboDyn Tri-Guard 4046 ISO 46 Rotary Screw Synthetic PAO Air Compressor Oil
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TriboDyn Tri-Guard ISO 46 Synthetic Compressor Oil
TriboDyn Tri-Guard 4046 is an ISO 46 PAO-based synthetic compressor oil engineered for rotary screw air compressors. It delivers an industry-leading 8,000 to 10,000 hour service life, resists varnish and thermal breakdown, and meets or exceeds OEM specifications for Atlas Copco, Ingersoll Rand, Kaeser, Quincy, Gardner Denver, Champion, and Sullair.
With a pour point of -60°C and flash point of 244°C, it performs reliably in extreme cold starts and high-heat conditions — reducing maintenance costs, minimizing downtime, and extending equipment life.
Key Benefits:
- Extended 8,000–10,000 hour service life
- Excellent thermal and oxidative stability
- Resists varnish, sludge, and carbon buildup
- Superior low-temperature fluidity for cold starts
- High flash point for enhanced safety
- Compatible with most rotary screw compressor brands
Recommended Applications: Designed for rotary screw air compressors in industrial, manufacturing, construction, and automotive service environments. Ideal for operations seeking longer drain intervals and reduced maintenance.
Technical Specifications – Tri-Guard™ 4046 Rotary Screw Compressor Oil
ISO Viscosity Grade (ASTM D2422): 46
Viscosity @ 100°C (ASTM D445): 7.5 cSt
Viscosity @ 40°C (ASTM D445): 46 cSt
Viscosity Index (ASTM D2270): 128
Pour Point (ASTM D97): -60°C (-51°F)
API Gravity (ASTM D4052): 33.0
Flash Point (ASTM D92): 244°C (465°F)
Copper Strip Corrosion (ASTM D130): 1b
Foam Test (ASTM D892): Pass
Total Acid Number (TAN) (ASTM D664): 0.02
Service Life: Up to 8,000 – 10,000 hours under normal operating conditions (oil life is dependent on operating conditions and maintenance practices — a regular oil analysis program is recommended).
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Why TriboDyn Tri-Guard 4046 Outperforms Ordinary Rotary Screw Compressor Oil

Up to 10,000 Hours Service Life
Typical rotary screw compressor oils last only 4,000–6,000 hours. Tri-Guard 4046 delivers up to 10,000 hours of reliable service — dramatically reducing oil changes, labor, disposal costs, and downtime in continuous-run industrial applications.

Widest Temperature Range
Rotary screw compressors must perform reliably in extreme cold and high heat. Tri-Guard 4046 offers the widest operating temperature range with a pour point of -76°F and flash point of 465°F, ensuring consistent performance in the harshest environments.

Exceptional Varnish Resistance
Varnish buildup is a leading cause of inefficiency and downtime in rotary screw compressors. Tri-Guard 4046’s advanced PAO base and Tri-Guard™ technology provide outstanding resistance to varnish formation, keeping your airend and internals clean far longer than standard oils.

Reduced Energy Consumption
Inefficient lubricants increase power draw and operating costs. Tri-Guard 4046’s superior film strength and low friction reduce energy consumption, helping your rotary screw air compressor run more efficiently and lowering your overall electricity costs.
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Meets or Exceeds Demanding Industry Specifications
ISO 46 Rotary Screw Synthetic PAO Compressor Oil • Up to 10,000 Hours Service Life • Highest Level Patented Ceramic Coating • Highest Moly Content • Widest Temperature Range (-76°F to 465°F) • Exceptional Thermal & Oxidative Stability • Compatible with Atlas Copco, Ingersoll Rand, Kaeser, Quincy, Gardner Denver & many more
100% Customer Satisfaction
Hundreds of 5-star reviews • Perfect 100% rating on eBay for over 5 years. You are buying the worlds best oil, our shipping speed, packing, and service is 2nd to none.
Made in the USA
Exclusively manufactured in our own ISO 9001 certified facility. Unmatched purity and quality in every drop.
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Safety Data Sheet (SDS)
Download the official Safety Data Sheet
Frequently Asked Questions
It is fully compatible with most synthetic and conventional compressor oils and exceeds warranty requirements for major manufacturers including Atlas Copco, Ingersoll Rand, Kaeser, Quincy, Gardner Denver, and many others.
TriboDyn oils are developed by world-renowned Tribologists with decades of experience engineering high-performance lubricants for aerospace, heavy industry, and professional racing applications. This deep technical expertise ensures every formulation, including Tri-Guard 4046, delivers professional-grade performance and reliability you can trust in your rotary screw air compressor.
Varnish buildup is one of the biggest issues in rotary screw compressors, leading to reduced efficiency and costly cleaning. Tri-Guard 4046’s advanced PAO base and Tri-Guard™ technology provide exceptional resistance to varnish formation, keeping your internals clean far longer than standard oils.
Yes. Its superior film strength, foam control, and low friction reduce internal drag, lowering energy consumption and helping your rotary screw air compressor run more efficiently compared to standard oils.
Extremely well. Rotary screw compressors must perform in both very cold starts and high-heat conditions. Tri-Guard 4046 offers the widest temperature range with a pour point of -76°F and flash point of 465°F, ensuring consistent performance in the harshest environments.
Yes. Its superior film strength, foam control, and low friction reduce internal drag, lowering energy consumption and helping your rotary screw air compressor run more efficiently compared to standard oils.
