Anaerobic flange sealant is a high-performance, form-in-place liquid gasket designed to seal rigid metal flanges with precision and durability. Unlike traditional pre-cut gaskets made from rubber, paper, or cork, this advanced anaerobic adhesive cures in the absence of oxygen and in the presence of active metal surfaces, creating a long-lasting, leak-proof seal.
Ideal for applications in automotive, industrial, and heavy machinery, anaerobic sealants eliminate micro-gaps, resist fluid leakage, and provide a cleaner, more reliable alternative to conventional gasket materials.
How Anaerobic Flange Sealants Work
Application Process:
- Apply Sealant: A continuous bead is applied directly to one flange surface.
- Assemble Flanges: The parts are torqued together, spreading the sealant into all surface imperfections.
- Curing Reaction: With oxygen excluded and metal ions present (from materials like steel, aluminum, or copper), the sealant undergoes a chemical reaction and cures into a durable, flexible polymer.
- No-Cure Excess: Any excess sealant exposed to air remains uncured and can be easily wiped away, reducing mess and waste.
Key Features & Benefits of Anaerobic Flange Sealant
100% Surface Contact: Fills all microscopic surface irregularities, creating a perfect seal between metal flanges.
No Shrinking or Cracking: The 100% solid formula won’t shrink, crack, or compress over time, ensuring long-term performance.
High Resistance: Withstands vibration, thermal cycling, pressure, and exposure to oils, coolants, fuels, and industrial chemicals.
Clean and Efficient: Reduces the need for gasket inventory by replacing multiple pre-cut gasket shapes with a single, form-in-place solution.
Easy Disassembly: While offering strong adhesion, flanged parts can still be disassembled when necessary—heat may be used for tougher bonds.
Common Applications of Anaerobic Flange Sealants
Anaerobic sealants are widely used in automotive repair, heavy-duty equipment, and industrial assembly to ensure leak-proof sealing of precision-machined components:
- Automotive Engine Components:
- Water pumps, oil pans, thermostat housings, valve covers, timing covers, and engine cases
- Transmission Systems:
- Transmission pans, casings, and gear covers
- Industrial Equipment:
- Compressors, pumps, gearboxes, and hydraulic components
- Heavy Machinery (Mining & Construction):
- Load-bearing equipment subject to vibration and stress
Why Choose Anaerobic Flange Sealant Over Traditional Gaskets?
- Eliminates inventory of various gasket sizes
- Offers a custom-fit seal every time
- Reduces risk of fluid leakage
- Enhances assembly reliability in high-performance environments
Boost equipment reliability and reduce maintenance with anaerobic flange sealants—a smarter, cleaner alternative to traditional gaskets. For product recommendations or technical support, contact our team or explore Incure full range of industrial-grade flange sealants.
| Product | HeatGrip™ Highlights | Color | Strength | Temp. Range |
| HeatGrip™ 503 | HeatGrip™ 503 Rigid adhesive layer after curing. Fills gaps up to 0.25 mm in rigid flanges. High temperature resistance up to 200°C. Excellent solvent resistance. Suitable for sealing high-temperature rigid flanges. | – | – | up to 200°C |
| HeatGrip™ 504 | HeatGrip™ 504 Flexible adhesive layer after curing. Fills gaps up to 0.25 mm on rigid machined flanges. Purple color for easy identification. Compressive strength of 5.2 N/mm². | Purple | 5.2 N/mm² | – |
| HeatGrip™ 508 | HeatGrip™ 508 Excellent flexibility and solvent resistance. Fills gaps up to 0.25 mm. Easy to disassemble and clean after use. High compressive strength (7.8 N/mm²). | – | 7.8 N/mm² | – |