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LOCTITE SI 587 is a silicone paste used for gasketing and sealing applications for both plant maintenance and small, medium, and large-sized OEM. As a formed-in-place gasket sealant, it has been designed to give outstanding performance in typical automotive gasketing applications including valve covers, rocker covers, oil pans, water pumps, end seals, intake manifolds, and rear axle housings.

  • Fills gaps upto 6.35 mm
  • 260oC Service Temperature
  • Oil resistant
  • Adheres to wide range of substrates

*The minimum order quantity for this size should not be less than 10 items.

MRP Rs. 666.00/-
Discounted Price Rs. 333.00/-
Introductory offer on first order
  • 1-5 qty 50% off
    upto INR 1500
  • 6-10 qty 33% off
    upto INR 2500
  • 11-25 qty 25% off
    upto INR 4000
  • > 25 qty 10% off
Final discount applicable will be based on the total quantity in your cart

Features and benefits

  • Occupies all surface imperfections between flange surfaces providing a leak proof seal
  • Oxime silicones which do not corrode flange surfaces unlike ordinary RTV sealants which are acetoxy based
  • Excellent adhesive for bonding and repairing fabricated silicone gaskets
  • Excellent resistance to automotive engine oils and adheres to a wide range of substrates
  • Enhances load bearing & shock absorbing characteristics of the bonding area


Tech specifications
Gap Fill Upto 6.35mm
Temperature Resistance (continuous) 260oC
Gasket Type Silicone RTV (Room Temperature Vulcanization)
Skin Formation Time 50 mins
Cure Time 24 hours

Technical Documents

How To Videos

Step-by-step application


  We require a gasket that can withstand very high pressures. Can we use Loctite Gasketing solutions?

Yes, LOCTITE Anaerobic Gaskets can resist pressure upto 34.47 N/mm2.

  Our design uses the pre-cut gasket as a shim. Is there any way to use Loctite Gasket in case the gaps between the flanges are large?

Yes, in case the product design specifies the use of pre-cut gasket as a shim, LOCTITE Anaerobic Gasket Dressing can be used in conjugation with the pre-cut gasket. Just clean the flange surfaces and apply LOCTITE Anaerobic Gasket Dressing to both the sides of a fresh pre-cut gasket. Make sure to use a primer on both the sides of the pre-cut gasket before application of the Gasket Dressing.

  What type of materials can LOCTITE gasketing compounds be used on?

LOCTITE gasketing sealants can be used on many different materials including metals, wood, rubber, plastic, ceramics, glass and even concrete. The type of sealant selected for a specific application depends on the material to be sealed, environmental conditions, temperature and operating pressures in the system.

  There are some traces of the old gasket left on the parts. What can be used to remove them?

In order to remove any old gasket parts, you can use LOCTITE SF 790 Chisel Gasket Remover.

  We have to seal a fuel system. Would LOCTITE gasketing compounds be effective?

Yes. LOCTITE has two types of gasket technologies - one is anaerobic and the other is high performance Silicones. LOCTITE Anaerobic Gaskets are resistant to gasoline and Fuel oils. LOCTITE High Performance Silicones are 8 times more oil resistant than standard RTV silicones and hence perform well when used to seal hot oil systems like oil pans. They are both definitely superior to ordinary silicones as the latter swell and loose their sealing ability when used to seal fluid systems.

  How can we disassemble a part sealed with LOCTITE Gasketing Compound?

In order to disassemble the flanges sealed with LOCTITE Gasketing Compound, just use hand tools, and clean the flange surfaces with LOCTITE SF 790 Chisel Gasket Remover.

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