1. Sealant & Adhesives For Sale
  2. sku: 19323083516178632
  3. LOCTITE 2374452

LOCTITE 2374452 High Temperature Sealant Ns NS-55400 15.99 02/28

2374452 Loctite High Temperature Sealant Ns 55400 15.99 Fl Oz Brown 02/28

( Brand: Loctite ), ( Manufacturer Part Number: 2374452 ), ( Model: NS-55400 ), ( Type: Adhesives, Sealants Tapes ), ( Country Of Origin: Us )

Review LOCTITE High Temperature Sealant Ns 15.99 Fl Oz Brown 02/28

**Loctite 2374452 High-Temperature Sealant (NS 55400) 15.99 FL (02/28)** is a premium, high-performance adhesive and sealant engineered to deliver exceptional durability and reliability in demanding environments where extreme heat, vibration, and mechanical stress are present. Part of Loctite s trusted NS (Non-Shrink) series, this versatile product combines the strength of a robust adhesive with the flexibility of a high-temperature sealant, making it an ideal choice for automotive, industrial, and mechanical applications where conventional sealants fall short. Formulated with a unique blend of synthetic elastomers and specialized additives, this sealant forms a durable, gap-filling bond that resists cracking, peeling, and degradation even under prolonged exposure to temperatures ranging from -40 F to 350 F (-40 C to 175 C), ensuring long-term integrity in both high-heat and cold conditions. Its non-shrinking formula eliminates voids and gaps, providing a smooth, seamless finish that enhances both functionality and aesthetics, whether applied to metal, plastic, rubber, or ceramic substrates. Beyond its thermal resilience, the sealant also exhibits excellent resistance to oil, grease, and many chemicals, making it suitable for use in engine bays, exhaust systems, brake components, and other high-stress areas where contamination and wear are common. The product s fast curing time typically within 24 hours allows for efficient assembly without prolonged downtime, while its flexible yet strong bond prevents stress-induced failures over time. Whether used for sealing gaps in engine compartments, securing exhaust manifolds, or repairing high-temperature components, Loctite 2374452 delivers a balance of adhesion, elasticity, and thermal stability that sets it apart from conventional sealants. With its reliable performance and ease of application, this high-temperature sealant is a trusted solution for professionals and DIY enthusiasts alike who demand nothing less than superior protection in the most challenging conditions.

**Pros and Cons of Buying Loctite 2374452 High-Temperature Sealant (NS 55400, 15.99 fl, 02/28)**

### **Pros:**

1. **High-Temperature Resistance** This product is designed to withstand temperatures up to **550 F (288 C)**, making it suitable for automotive, HVAC, and industrial applications where heat exposure is common.

2. **Versatile Application** Works well on metal, glass, ceramic, and some plastics, providing a strong, durable bond for sealing gaps, joints, and leaks.

3. **Non-Sag Formula** The "NS" designation indicates it remains stable and doesn t drip or sag under its own weight, which is ideal for vertical or overhead applications.

4. **Chemical & Fuel Resistance** Resistant to oils, fuels, and some chemicals, making it reliable for automotive and mechanical systems.

5. **Easy to Use** Typically applied with a caulk gun and cures quickly, allowing for efficient installation.

6. **Long Shelf Life** The 02/28 date suggests it has been stored properly and may still be usable if unopened (check for any signs of degradation).

7. **Cost-Effective for Small Projects** At **$15.99 for a 15.99-ounce (473 mL) tube**, it offers good value for occasional or small-scale sealing needs.

### **Cons:**

1. **Limited Quantity** A single 15.99-ounce tube may not be sufficient for large projects, requiring multiple purchases.

2. **Potential for Overuse** Since it s a high-performance sealant, applying too much can lead to waste or improper curing.

3. **Curing Time** Some high-temperature sealants require time to fully cure, which may delay completion of a project.

4. **Compatibility Issues** Not all surfaces may bond perfectly; testing on a small area first is recommended.

5. **Price Sensitivity** For professional or large-scale use, bulk purchases or higher-capacity tubes may be more economical.

6. **Environmental Concerns** Like many adhesives, it may contain solvents or chemicals that require proper disposal.

### **Conclusion:**

Loctite 2374452 High-Temperature Sealant (NS 55400) is a reliable choice for applications requiring **heat resistance, durability, and stability**. It excels in automotive, mechanical, and HVAC sealing tasks where traditional silicone or rubber-based sealants would fail. However, its **limited quantity and potential overuse risks** make it best suited for **small to medium projects** rather than large-scale industrial work.

### **Recommendation:**

- **Buy if:** You need a **high-temperature, non-sag sealant** for occasional repairs (e.g., exhaust leaks, gasket sealing, or HVAC joints) and prefer a trusted brand.

- **Consider alternatives if:** You require **larger quantities** (look for 26 oz or 1-gallon options) or **flexible, non-hardening sealants** (e.g., RTV silicone for dynamic seals).

- **Best for:** DIYers, mechanics, or professionals working on **static, high-heat applications** where a permanent bond is needed.

For **frequent or large-scale use**, purchasing in bulk or opting for a slightly more expensive but higher-capacity tube may be more cost-effective. Always ensure proper ventilation when applying and follow manufacturer guidelines for best results.

Details:

Minimum Application Temperature. Maximum Application Temperature.

part #: 2374452 prices

  • $15.61-$60.00

specifications sealantadhesivee:

  • brand: Loctite
  • mpn: 2374452
  • model: Ns-55400
  • type: Adhesives, Sealants Tapes
  • country of origin: Us

payments sealantadhesivee:

  • wallet: Paypal
  • credit card: Discover
  • other

returns sealantadhesivee:

  • time: 14 Days
  • method: Money back
  • policy: Returns Accepted
  • paid by: Buyer

offer sealantadhesivee:

  • quantity: 9
  • availability: In Stock
  • started: June 11, 2026
  • sold: 0
  • options: Ship-to-home

general sealantadhesivee:

  • condition: New
  • Adhesives, Sealants Tapes > Caulks, Sealants Removers > Caulks Sealants

shipping sealantadhesivee:

  • carrier: USPS
  • service: USPS Ground Advantage
  • cost: $14.10
  • class: Standard
  • type: Calculated
  • transit: 4-7 Days

seller sealantadhesivee:

  • city: Rockford, Illinois
  • rating: 99.8%
  • # reviews: 7377
type: adhesives, sealants tapes, country of origin: us,
category: business & industrial > adhesives, sealants tapes > caulks, sealants removers > caulks sealants, sku: 19323083516178632,
Loctite 2374452 Is Similar To:
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2 offers $15.61–$60.00 USD
  • New. Offer #1 priced at $60.00 + $14.10 shipping estimate = $74.10* total. Maximum Application Temperature Sealant Type.+$14.10 shipping
  • New. Offer #2 priced at $15.61 + $13.42 shipping estimate = $29.03* total. The bushes can be used for all air-cooled Puch cylinder heads in conjunction with conventional M6 threaded studs. Aluminium centring sleeves, red anodized, suitable for Puch Maxi S / N, Puch X30 NS / NL, Puch X30 N-2AH mopeds / mopeds.+$13.42 shipping

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