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White 50g tub of NSF H1 silicone grease, screw-top lid, matte label

Captain O-Ring NSF H1 Silicone Grease 50g

SKU CH-BZEA-28AJE

NSF H1 certified food-safe silicone grease lubricates and protects O-rings, seals and gaskets from -40°F to 400°F

  • Key featuresPrevent Corrosion
  • Overall height5.12 L x 1.8 W x 1.2 H inches
  • Overall width5.12 L x 1.8 W x 1.2 H inches
  • Overall length5.12 L x 1.8 W x 1.2 H inches
  • Product weight0.059 kg
  • Product typeGrease
  • NSF H1 certified for safe use in food and drinking water systems
  • Withstands extreme temperatures from -40°F to 400°F for reliable performance
  • High-viscosity silicone formula resists moisture, chemicals and corrosion without hardening
  • Lubricates and protects O-rings, gaskets and seals to extend equipment service life
  • Compact 50 g tube designed for precise application in plumbing, pool, automotive and marine tasks

Food-safe silicone grease

Captain O-Ring NSF H1 Silicone Grease is a 50 gram tube of food-grade lubricant certified for incidental contact with drinking water and food equipment. It suits plumbers, pool technicians, brewers and maintenance teams who need a non-toxic grease for O-rings, gaskets, valves and pump seals across potable water, spa, marine and food-service systems.

Simple squeeze-tube application

The 1.76 ounce tube lets you dab grease directly onto seals or threads without tools, and the high-viscosity formula clings to vertical surfaces without slumping. Clean mating faces first; grit or old petroleum grease can prevent the silicone from wetting the rubber and will cause leaks to persist after reassembly.

Stable from minus 40 to 400 Fahrenheit

The grease keeps its consistency through freeze-thaw cycles and continuous hot-water service up to 200 Celsius without hardening, drying out or washing away. It resists oxidation and chemical attack during long dwell times, so lubricated seals in whole-house filters, aquarium pumps or commercial coffee machines stay pliable and leak-free for extended service intervals.

How it compares

Measured against everything we stock in Greases, Lubricants & Dispensers, at today’s prices. Recalculated every night.

Price $15.99
Pricier than about 60% of the 122 comparable items (median $14.99).

Specifications

Product
Brand nameCaptain O-Ring
Product typeGrease
Size & build
Overall height5.12 L x 1.8 W x 1.2 H inches
Overall width5.12 L x 1.8 W x 1.2 H inches
Overall length5.12 L x 1.8 W x 1.2 H inches
Product weight0.059 kg

Questions about this item

How can I confirm the grease is performing correctly after applying it to an O-ring?

The O-ring should move smoothly without sticking, show no signs of drying or hardening, and maintain a consistent seal across the rated temperature range of -40°F to 400°F.

What is included in the package and are any additional items required for application?

The package contains 1.76oz (50g) of NSF H1 certified silicone grease in a tube; no separate tools or accessories are needed for application.

Which capacity should I choose for occasional plumbing and pool maintenance tasks?

The 50g tube provides enough grease for many small jobs such as faucet seals, pool pump O-rings, and filter gaskets without excess waste.

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