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17, February 2023

Guide to Using High-Temperature Silicone Sealants

Guide to Using High-Temperature Silicone Sealants

High-temperature silicone sealants are versatile and essential materials for home and industrial applications.

They can withstand high temperatures and are resistant to water, oil, and chemicals.

However, using them correctly requires some knowledge and skills. In this guide, we'll cover everything you need to know to use general silicone sealants a.k.a high-temp silicone effectively.

Top 6 things to keep in mind while using high-temp silicone sealants for effective results.

  • Preparation: First things first, before you begin you must prepare the surface by removing any debris, dirt, or old sealant that may be present. Clean the surface with soap and water, and then wipe it with a cloth & allow it to dry completely before you apply the silicone sealant.
  • Application: Apply the high-temperature silicone sealant to the surface using a caulking gun. Hold the gun at a 45-degree angle and apply steady pressure to the trigger. Apply the sealant in a continuous bead, without stopping or lifting the gun, to ensure a uniform application.
  • Spreading: After applying the general silicone sealant, use a putty knife or a finger to spread it evenly. Spread the sealant in a thin layer, making sure to fill any gaps or voids in the surface. Smooth the surface of the sealant using a finger or a tool dipped in soapy water.
  • Curing: The curing time of the sealant depends on the brand and temperature. The manufacturer's instructions should be followed. Generally, high-temperature silicone sealants take 24 to 48 hours to cure. It is essential to avoid disturbing the sealant during the curing process.
  • Maintenance: High-temperature silicone sealants are long-lasting and require minimal maintenance. However, they can be damaged by exposure to harsh chemicals or abrasives. Avoid using abrasive cleaners or solvents on the sealant. If the sealant is damaged, it can be repaired using the same process as the initial application.
  • Safety: High-temp silicone sealants are safe to use when handled correctly. However, some precautions must be taken. Always wear gloves and safety glasses when working with sealants. Avoid contact with skin or eyes, and keep sealants out of reach of children.

Directions for safely using high-temperature silicone sealants

  • Before use, you must clean the surface and it must be dried with a towel or paper towel.
  • To get the right size bead while using a cartridge, trim the nozzle at 45-degree angles.
  • Apply the sealant with a caulking gun by pushing it forward of the nozzle.
  • As soon as the sealant has been placed, take it, and try to complete the tooling within a 5- to 10-minute interval.
  • Without sagging, slumping, or running off, this sealant can be applied to sidewall joints and surfaces as well as overhead.
  • Apply a bead of adhesive to one surface before joining the two components together to attach materials and sealants.
  • After that, press down to make sure the surfaces are completely in contact.
  • As long as the surface is dry and frost-free, you can apply the sealant at low temperatures as low as -85°F.
  • Within the first 24 hours, the sealant will be entirely cured and should feel dry to the touch.
  • Avoid combining the sealant with other chemicals, and when applying it, always wear safety goggles to protect your eyes.
  • Following usage, keep the sealant somewhere cool and dry that is between 40°F and 90°F.
  • After usage, all of the application equipment needs to be cleaned with warm water.

Applications of high-temperature silicone sealants

High-temperature silicone sealants are versatile products that have many uses in various industries. These sealants are designed to withstand high temperatures, making them ideal for applications that involve extreme heat.

1. High-temperature silicone sealant for automotive bonding:

High-temp silicone sealants are used in the automotive industry to seal engine components, such as valve covers, oil pans, and timing covers. These sealants can withstand high temperatures and resist oil and other automotive fluids.

2. High-temperature silicone sealant for sealing HVAC:

High-temp silicone sealants are used in the HVAC industry to seal air ducts and other components that are exposed to high temperatures. These sealants help to prevent air leaks and improve energy efficiency.

3. High-temperature silicone sealant for industrial usage:

High-temp silicone sealants are used in various industrial applications, such as sealing and bonding components in furnaces, boilers, and ovens. These sealants can withstand extreme temperatures and resist chemicals and other harsh conditions.

4. High-temperature silicone sealant for construction application:

High-temp silicone sealants are used in construction to seal and bond various components, such as metal roofs, window frames, and masonry. These sealants can withstand high temperatures and resist weathering and UV exposure.

5. High-temperature silicone sealant for aerospace equipment:

High-temp silicone sealants are used in the aerospace industry to seal and bond components in aircraft engines, exhaust systems, and other high-temperature applications.

These sealants can withstand extreme temperatures and resist vibration and shock.

How to choose the right high-temperature silicone sealant?

There are many types of high-temperature silicone sealants available on the market. When selecting a sealant, it is essential to consider the application, temperature range, and other factors.

1. Temperature range: Make sure the sealant can withstand the highest temperature expected in the application.

2. Chemical resistance: Check if the sealant can resist exposure to chemicals and other materials present in the environment.

3. Curing time: Consider the time it takes for the sealant to cure and form a strong bond.

4. Application method: Determine if the sealant can be applied using the desired method, such as by brush, roller, or spray.

5. Bond strength: Ensure that the sealant has adequate bond strength to meet the needs of the application.

6. Compatibility with surfaces: Verify that the sealant is compatible with the surfaces it will be applied to.

How can Bondzil high-temperature silicone help you?

Bondzil is one of the leading silicone sealant manufacturers in India.

Bondzil’s wide-range of high-temperature silicone sealants are available in over 23 unique shades and are capable of application under extreme temperatures of -30 to 125.

Bondzil high-temp silicone sealants are made using Bondzil’s unique proprietary technology which grants them complete resistance to weather, extreme temperatures, UV rays, Ozone, etc.

Bondzil sealants are renowned for their long shelf life, gentle smell, forever elastic nature, high-strength bond, and flexibility.

For more information, contact our team of experts.