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Permatex

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US Part Number: 51531
Canada Part Number: 51550

Permatex® Anaerobic Flange Sealant

Flexible, gasketing material for use on rigid machined flanges with less than .015" gap. OEM approved – use where OE’s specify “anaerobic” gasket (cures in the absence of air). Withstands temperatures to 300°F (149°C). Eliminates preformed, pre-cut, paper, rubber and cork gaskets. Flexes with flanges that move in service.

Automobile

Suggested Applications:
For use on machined aluminum metal components; transmission pans, transmission case covers, transaxle casings, axle covers, gear cases, split crankcases, pumps, housings, and with o-ring replacement.

Motorcycle

Suggested Applications:
For use on machined aluminum metal components; transmission pans, transmission case covers, transaxle casings, axle covers, gear cases, split crankcases, pumps, housings, and with o-ring replacement.

Heavy Duty

Suggested Applications:
Case covers, power divider shaft housings, input/output power shafts, PTO covers to housing, cover housing gasket, differential, assembly to rear axle housing, power dividers, axle shaft flange

Marine

Suggested Applications:
Crank case flanges drive unit joints, and with o-ring replacement

US Item # CDN Item # Container Size Pack
515315155050 ml tube 10
5158051580300 ml cartridge 10
US Item # Tech Doc File
51531 TDS  SDS  Canada part # SDS
51580 SDS  Canada part # SDS

TO MAKE A GASKET:

  1. Clean both flange surfaces. Remove paint, dirt, grease or old gasket completely.
  2. Spray Permatex® Surface Prep™ activator on one surface only. Allow to dry 1-2 minutes.
  3. Apply a continuous bead of sealant to the unprimed surface.
  4. Assemble mating surfaces with minimal lateral movement. Excess sealant can be wiped awaywith a cloth and shop solvent.

TO DRESS A GASKET:

  1. Clean both flange surfaces. Remove paint, dirt, grease or old gasket completely.
  2. Spray Permatex® Surface Prep™ activator to both flange surfaces. Allow to dry 1-2 minutes.
  3. Completely cover both sides of the precut gasket with sealant.
  4. Place coated gasket on flange, and assemble mating surfaces with minimal lateral movement.

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Tech Documents

Type the appropriate five-digit US Or Canadian part number(s) into the field and click on the Search button. If entering more than one five-digit part number, please separate by a comma. For example: 25224,25218,24010,27010

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