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Description
S2 Heat Transfer Oil - 55 Gallon DrumDescription Sinopec L QB300 Thermal Conduction Oil is formulated using a narrow cut, highly refined mineral oil, which has excellent inherent thermal and oxidation stability, together with selected detergent, dispersant and antioxidant additives. It is recommended for use as a heat transfer oil in closed, forced or unforced, circulation systems where the bulk oil temperature does not exceed 290C or 600F. Features & Benefits Sinopec L QB 300 Heat
Description
Sinopec L-QB300 Thermal Conduction Oil is formulated using a narrow-cut, highly refined mineral oil, which has excellent inherent thermal and oxidation stability, together with selected detergent, dispersant and antioxidant additives. It is recommended for use as a heat transfer oil in closed, forced or unforced, circulation systems where the bulk oil temperature does not exceed 290°C or 600°F.
Features & Benefits
Sinopec L-QB 300 Heat Transfer Oil is suitable for use in:
- Closed heat transmission systems with forced or unforced circulation operating at a maximum bulk temperature of 290°C.
- Drying and heating process, such as those used in timber processing, textile finishing, food processing and the chemical industry.
Features & Benefits
- The narrow-cut base oil has a high distillation point, which avoids pressure build up in the closed circulation system.
- Excellent thermal and oxidation stability ensure the oil does not crack, break down or produce deposits at high temperatures, extends the life of the oil, protects the system and reduces maintenance costs.
- The high flash point and low evaporation rate enable the oil to be used in closed systems up to 290°C.
- Good fluidity at low temperatures ensures good oil circulation, even at low-temperature start-up.
- The high specific heat and thermal conductivity of the oil enable rapid heat transfer, improved operating efficiency and lower operating costs.
- Good rust and corrosion resistance protect the system and reduce maintenance costs.
- Used paraffinic mineral oil can be recycled or disposed of more easily than naphthenic or synthetic fluids.
Specifications
Sinopec L-QB300 Thermal Conduction Oil Specifications
|
Kinematic viscosity, ASTM D 445 cSt @ 40°C cSt @ 100°C |
31.4 5.38 |
|
Viscosity index, ASTM D 2270 |
105 |
|
Micro-Conradson Carbon Residue, %wt, ASTM D 4530 |
0.01 |
|
Copper corrosion, 3 hours @ 100°C, ASTM D 130 |
1b |
|
Pour point, °C, ASTM D 97 |
-12 |
| Flash point (COC), °C, ASTM D 92 | 226 |
| Density @ 15°C, kg/l, ASTM D 4052 | 0.8685 |
Sinopec L-QB300 Thermal Conduction Oil meets or exceeds the performance requirements of the following industry specifications:
|
DIN |
51522-1998 |
|
GB1 |
23971-2009 |
Cross Reference
- Chevron Heat Transfer Oil
- Mobiltherm
- Shell Heat Transfer Oil S2
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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- Delivery to the USA:
- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 1023 reviews
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Product Reviews
★★★★★ 4
Perfect size and weight with compact size
Style: Rack with 3 Pairs (3, 5, and 8 Pound)
I purchased the Amazon Basics Neoprene Dumbbell Hand Weights specifically for Pilates, and they’ve been a great addition to my routine. The size and weight are perfect for controlled movements, helping with muscle toning without feeling too bulky or awkward.
The neoprene coating gives them a comfortable, non-slip grip, which is especially important during longer sessions or when your hands get a little sweaty. They feel secure and easy to hold through a full workout.
I also like the shape—they don’t roll around on the floor, which makes transitions between exercises smoother and less frustrating. They’re compact enough to store easily but still feel durable and well-made.
Overall, these are a simple, affordable, and effective option for Pilates or light strength training. I’d definitely recommend them for anyone looking to add a little resistance to their workouts without overcomplicating things.
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Reviewed in the United States on April 20, 2026
★★★★★ 5
Well made , gym quality
Style: 10 Pound, Pair
Color is nice and bright . The weights grips are good they do not slip . Prices reflect quality
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Reviewed in the United States on May 29, 2026
★★★★★ 5
Good purchase
Style: 3 Pound, Pair
These are just the right weight for me to start gaining muscle back in my arms, after a large weight loss. They are of good quality, they are covered in a nice rubber like coating that is soft to the touch. They are small enough that i can take them with me when I travel. My dog has got hold of them a couple times and played with them, and they held up just fine without any damage.
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Reviewed in the United States on April 28, 2026
★★★★★ 5
Solid, grippy, and they don’t roll away!
Style: 10 Pound, Pair
I bought these because I’m finally trying to build a consistent home workout routine and didn't want to drop a fortune on name-brand weights. I’ve been using this 10lb pair for about a month now for everything from overhead presses to lunges, and honestly, they’re exactly what I was looking for.
The Pros:
• That Neoprene Grip: The coating is fantastic. Even when my hands get pretty sweaty halfway through a workout, I don’t feel like I’m going to drop them. It’s a much "softer" feel than cold metal or hard plastic.
• The Hex Shape: This is a small detail that makes a huge difference. Since the ends are hexagonal, they don't roll across the floor when I set them down between sets. They also stay put if I’m using them for "renegade rows" or floor work.
• Compact Size: They aren’t bulky. I can easily shove them under my bed or in the corner of the closet when I’m done.
• No Weird Odor: I was worried they might smell like a tire factory (which happens with some rubber-coated weights), but these had almost no scent right out of the box.
The Cons:
• Handle Diameter: The handles are a little on the thicker side. I have medium-sized hands and it’s fine, but if you have very small hands, they might feel a bit chunky to wrap your fingers all the way around.
• Color Scuffs: The navy blue looks great, but if you clank them together or drop them on concrete, the coating can scuff or show dust pretty easily.
The Verdict:
If you just need a reliable set of weights for HIIT, Pilates, or general strength training, these are a no-brainer. You're basically getting gym-quality equipment for a fraction of the price. I’ll probably be back for the 15lb set in a few months!
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Reviewed in the United States on January 27, 2026
★★★★★ 5
Simple, Comfortable, and Exactly What You Expect
Style: Rack with 3 Pairs (5, 10, and 15 Pound)
These are pretty much exactly what you want from a set of dumbbells — simple, functional, and no nonsense. The neoprene coating gives them a comfortable grip and keeps them from feeling slick in your hands, especially during longer workouts or if your hands get sweaty.
The coating also helps keep them from banging up floors or making as much noise compared to bare metal weights, which is nice if you’re working out at home.
Weight accuracy seems fine for general fitness use, and they’ve worked great for things like accessory movements, shoulder work, lighter presses, rehab-style exercises, and general muscle toning. The shape also helps keep them from rolling around everywhere when set down.
They’re not fancy, and they’re not trying to be — they’re just dependable dumbbells that do what they’re supposed to do at a fair price.
If you want straightforward hand weights for home workouts without overthinking it, these are a solid buy.
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Reviewed in the United States on May 26, 2026