SKU: 56889320620

RISLONE Heavy Duty Hydraulic Seal Stop Leak & Conditioner - 3.8 Litre 41821

Sale price$173.24 Regular price$192.49
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Ships within 48 hours · Estimated delivery Sep 19 - Sep 24

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Description

RISLONE Heavy Duty Hydraulic Seal Stop Leak & Conditioner - 3.8 Litre 41821Rislone Hydraulic Seal Stop Leak & Conditioner is designed to keep hydraulic seals soft and pliable and reduce friction and wear in hydraulic systems. Our formula cleans and prevents harmful formation of sludge and varnish while helping keep the hydraulic systems run cooler and last longer. Rislone Hydraulic Seal Stop Leak & Conditioner mixes with all factory approved hydraulic fluids and synthetics. Works on all Petroleum Synthetic Fluid, Pump Seals,


Rislone Hydraulic Seal Stop Leak & Conditioner is designed to keep hydraulic seals soft and pliable and reduce friction and wear in hydraulic systems.  Our formula cleans and prevents harmful formation of sludge and varnish while helping keep the hydraulic systems run cooler and last longer.  Rislone Hydraulic Seal Stop Leak & Conditioner mixes with all factory approved hydraulic fluids and synthetics.  Works on all  Petroleum Synthetic Fluid, Pump Seals, Control Valve Seals, Actuators, Rams, Cylinders, O-ring Boss Hose Fitting, and Hydrostatic Transmission.  This formula is safe to use on Construction, Farm, Manufacturing, Forestry Machinery, Mining, and Marine.

  • Keeps Hydraulic Seals Soft & Pliable
  • Reduces Friction and Wear in Hydraulic Systems
  • Works on all Petroleum Synthetic Fluid, Pump Seals, Hydrostatic Transmission
  • Safe To Use On Construction, Farm, Manufacturing, Forestry Machinery, Mining, & Marine

Dosage & Directions

Mixes with all factory-approved hydraulic fluids and synthetics.

Frequently Asked Questions

Will Rislone Hydraulic Seal work with all regular types of hydraulic fluids?
Yes, Rislone Hydraulic Stop Leak is compatible with all petroleum based, mineral oil, and synthetic fluids. Do not use with water-glycol or phosphate ester flame retardant hydraulic fluids. Do not use in brake fluid systems.

How does Hydraulic Seal work?
After time, hydraulic seals and o-rings tend to dry out and shrink. Rislone revitalizes these seals and o-rings and makes them soft and pliable again

If first application does not completely stop leak, may I add another dosage?
Yes, you can install a second application for hard to stop leaks. If your leak still persists after a second application, then mechanical attention is needed, and replacement of seals may be required.

Can Hydraulic Seal be used for preventative maintenance to help prevent leaks?
Yes, this is a great product to use in older systems to keep them working properly not only to prevent leaks, but keep the system lubricated and protected. The recommended preventative maintenance dose is 15mL per liter of fluid capacity.

How long does it take to start working?
Rislone Hydraulic Seal starts working the minute you install and start using equipment. Most leaks are sealed within a few hours of application and usage. Some leaks can take longer, up to a few days. Old accumulation of fluid on outside of system may drip for a few days after leak has stopped.

My hydraulic system uses motor oil, can I still use Hydraulic Seal?
Yes, Hydraulic Seal will mix and work perfectly in a hydraulic system using motor oil.

Will Hydraulic Seal change the fluid viscosity?
No, we have designed the formulation using a multi-viscosity hydraulic fluid as a carrier which when used at the recommended dosage will not take ISO 22, ISO 32, ISO 46, ISO 68 or ISO 100 out of grade specification.

Will Hydraulic Seal harm painted surfaces?
No, this product will not affect painted surfaces any differently than straight hydraulic fluid.

Will Hydraulic Seal harm hoses?
No, this will not harm or affect hoses in any way.

What is the difference between hydraulic fluid and hydraulic oil?
Nothing, they are the same thing, just a terminology difference.

Technical Information

SAFETY DATA SHEET
CODE: 41821
SIZE: 3.8L

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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
SKU: 56889320620

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Wendy Adkins
San Leandro, US
★★★★★ 5
Incredible purchase
Color: White, Size: King
Beautiful and lightweight. Adds texture to any bedding. It is a warm ivory color.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
P
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Patricia Hurt
Chelsea, US
★★★★★ 5
Summer perfect! Soft and light
Color: White, Size: Twin
I bought 3. As soon as I opened the bag there was an odor to them. They didn’t feel like made with natural products. I washed them & when they came out of the dryer they smelled good & are so soft. I will order other colors.
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Reviewed in the United States on April 8, 2026
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Verified Purchase
Brandon Gabriel
Louisville, US
★★★★★ 2
Impossible to keep clean
Color: White, Size: Queen, Color: White, Size: Queen
Great blanket. How TF are you supposed to keep it clean? They provide garment bag, but my zipper broke before I could even use it. I had one of these before and my ex lost the bag, so I had no idea it even came with one. These rip and get burned in the dryer. DON’T WASTE YOUR MONEY
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Reviewed in the United States on May 10, 2026
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Lisa
Carnegie, US
★★★★★ 5
Soft and perfect for warmer days
Color: White, Size: Queen, Color: White, Size: Queen
Soft and I love the waffle design just get it perfect for warmer days. It’s not too light therefore still gives some warmth.
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Reviewed in the United States on March 5, 2026
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Noble1Uncle
Lexington, US
★★★★★ 4
Element of its stitched pattern may matter to some.
Color: Light Grey, Size: Queen (90" x 90"), Color: Light Grey, Size: Queen (90" x 90")
The blanket color was as expected, its fabric I believe will keep you warm, and no material odd scents which is good. Not a flaw, but what might matter to some, at least for me, is that in its stitched pattern it has a repeated section that has loose threading. I noted close up of that in my photos. I can see that element of the blanket being something that may snag on things sometimes over time from items you might set on this bed blanket. Nothing to cut much of a rating on but I wouldn’t of wanted this blanket due to that if I saw that design feature up close beforehand.
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Reviewed in the United States on June 1, 2026

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