Loctite SI 587 blue silicone gasket maker

🔧 Overview of Loctite SI 587 Blue Silicone Gasket Maker – 300 ml

The Loctite SI 587 blue silicone gasket maker is a high-performance RTV (Room Temperature Vulcanizing) silicone sealant designed for flexible sealing of metal flanges and mechanical assemblies. Supplied in a large 300 ml cartridge, this product is perfect for industrial environments where durability and oil resistance are critical.

Formulated to withstand harsh conditions, it creates a flexible, durable, and oil-resistant seal that eliminates the need for traditional gaskets, reducing maintenance and improving efficiency.

⚙️ Technical Specifications

• Brand: LOCTITE

• Model: SI 587

• Color: Blue

• Size: 300 ml cartridge

• Type: RTV silicone gasket maker

• Tack-Free Time: ~20 minutes

• Full Cure Time: 24 hours

• Temperature Range: -75°F to 500°F (-59°C to 260°C)

• Oil Resistance: Excellent

• Sensor-Safe: Yes (low odor and non-corrosive)

🧰 Common Applications

• Sealing oil pans, valve covers, timing gear covers

• Replacing or supplementing cut gaskets

• Gearboxes, pumps, compressors

• Industrial machinery and automotive engines

• Sealing metal flanges in OEM and MRO settings

Whether you’re maintaining high-performance engines or sealing sensitive industrial components, Loctite SI 587 blue silicone gasket maker delivers superior results.

💡 Key Benefits

• Flexible and durable seal: Absorbs vibration and thermal expansion

• Excellent oil resistance: Ideal for oil-contacting surfaces

• Non-corrosive formula: Safe for electronics and oxygen sensors

• Large cartridge: 300 ml size for extended application use

• Easy to apply: Compatible with standard caulking guns

• OEM-approved: Meets or exceeds industry performance standards

🛠 How to Use Loctite SI 587

1. Clean and dry all surfaces to be sealed. Remove any old gasket material.

2. Cut the nozzle to desired bead size and puncture inner seal.

3. Apply a continuous bead of loctite si 587 blue silicone gasket maker to one surface.

4. Assemble parts immediately while the sealant is still wet.

5. Allow to cure for 24 hours before operating under pressure.

⚠️ Not recommended for use on head gaskets or parts in constant contact with fuel.

🔍 Recommended Surfaces

• Aluminum

• Steel

• Cast iron

• Sheet metal

• Painted and coated metal surfaces

🏆 Why Choose Loctite?

LOCTITE, a global leader in adhesives and sealants, delivers professional-grade solutions for industrial and automotive applications. The Loctite SI 587 offers a premium, OEM-quality alternative to traditional gaskets, helping reduce leak points and improve equipment life.