Loctite 135354 Blue 079340-24221-BO 242 Removable Thread Locker, 3/4″ Length x 1/4″ Width, 10 mL

Description

Product Overview

Loctite 242 Blue is a premium removable thread locker designed for precision sealing of medium‑size fasteners. The formulation combines a high‑strength polymer matrix with a proprietary blue dye that visually indicates proper application. Engineered to cure at room temperature, it creates a flexible, vibration‑resistant bond that can be disassembled with standard hand tools, eliminating the need for heat or special equipment. The 10 mL tube offers a compact, easy‑to‑use dispensing tip that delivers consistent bead size, reducing waste and ensuring accurate coverage on 3/4″ x 1/4″ threaded components. Compatibility spans steel, stainless steel, aluminum, brass, and many engineered plastics, making it a versatile choice for a broad range of industrial and consumer applications.

Usage

Ideal for automotive engines, transmission assemblies, and chassis components, Loctite 242 Blue excels in environments where periodic maintenance is required. It is equally effective on industrial machinery such as pumps, gearboxes, and hydraulic valves, where fasteners are subject to cyclic loads and temperature fluctuations. DIY enthusiasts will appreciate its straightforward application for projects like bicycle repairs, outdoor equipment, and home‑improvement tasks. Apply the product to clean, dry threads, allow a brief air‑dry period, and assemble the parts. The adhesive reaches full strength within 24 hours, yet remains removable for up to 30 days, providing a balance of security and serviceability that meets the expectations of both professional technicians and hobbyists.

Why Choose Us

Choosing Loctite means selecting a brand with over 80 years of chemical engineering expertise and a global reputation for reliability. Our removable thread locker undergoes rigorous quality‑control testing, including shear‑strength, impact‑resistance, and environmental durability assessments, ensuring consistent performance across batches. The blue coloration not only aids in visual verification but also signals compliance with industry standards for removable sealants. Additionally, Loctite provides comprehensive technical support, safety data sheets, and application guidelines, empowering customers to achieve optimal results without guesswork. Our commitment to sustainability is reflected in the low‑VOC formulation and recyclable packaging, aligning product excellence with environmental responsibility.

Key Features

• Easy‑to‑apply 10 mL tube with precision tip reduces mess and waste.
• Blue dye provides instant visual confirmation of proper coverage.
• Removable bond tolerates up to 30 days of service before requiring heat.
• Compatible with metal, plastic, and composite substrates for versatile use.
• Backed by Loctite technical support and a 1‑year warranty for peace of mind.

FAQ

Can Loctite 242 Blue be used on stainless steel?

Yes, the formulation is designed to adhere to stainless steel as well as carbon steel, aluminum, brass, and many engineered plastics. Ensure the surface is clean and free of oil before application for best results.

How long does it take to reach full strength?

The adhesive achieves handling strength in about 10 minutes at 20 °C, with full cure typically reached after 24 hours. Ambient temperature and humidity can affect cure time, so refer to the technical data sheet for specific conditions.

Is the product safe for use in food‑processing equipment?

Loctite 242 Blue is not certified for direct food contact. For applications involving food‑grade equipment, select a sealant that meets FDA or NSF standards. However, it can be used on non‑contact components of such equipment.

What is the recommended storage condition?

Store the tube in a cool, dry place away from direct sunlight and temperatures above 30 °C. Keep the cap tightly sealed to prevent moisture ingress, which could affect performance.

Can the adhesive be removed without tools?

For most fasteners, the bond can be broken by applying moderate torque with a standard wrench or screwdriver. If the fastener is seized, gentle heating (up to 80 °C) can assist removal, but this is rarely necessary within the 30‑day service window.