Top Automotive Silicone Sealants for Car Care

The best Silicone Sealers includes E/FUSING 900 Moldable Silicone Putty, Design Engineering Hi-Temp Silicone Coating Spray, SILCA Ultimate Sealant (500ml) Fiber Foam and many others as mentioned below.

1

E/FUSING 900 Moldable Silicone Putty

  • Moldable silicone putty for versatile use.
  • Ideal for sealing pinhole leaks in pipelines.
  • Works well with E/Fusing 140 and 330.
  • Made in the USA for quality assurance.
  • Lightweight package, only 2.65 ounces.
  • Durable and long-lasting sealing solution.
  • Easy to apply and mold as needed.
  • Average Rating out of 5:
  • Price Range: $13.39
  • Material: Silicone
2

Design Engineering Hi-Temp Silicone Coating Spray

  • Ultimate protection for exhaust wraps and metal surfaces.
  • Withstands extreme heat up to 1200°F effectively.
  • Enhances heat retention and durability of wraps.
  • Easy application with a quick curing process.
  • Compatible with various metal surfaces and applications.
  • Improves performance of heat-sensitive vehicle components.
  • 12 oz. spray bottle for convenient use.
  • Average Rating out of 5:
  • Price Range: $13.40
  • Size: ‎12 Ounce (Pack of 1)
3

SILCA Ultimate Sealant (500ml) Fiber Foam

  • Seals punctures up to 6mm in size.
  • Injectable directly through the valve for convenience.
  • Lasts over 6 months for durable protection.
  • Made with natural and synthetic latex blend.
  • Optimized with carbon fiber strands for strength.
  • Easy to use for quick repairs on-the-go.
  • Lightweight design for hassle-free transportation.
  • Average Rating out of 5:
  • Price Range: $26.99
  • Material: 500 ml
4

GEAR AID Seam Grip SIL Silicone Sealant

  • Durable silicone sealant for silnylon tents and tarps.
  • Seals up to 24 feet with 1.5 oz tube.
  • Permanently bonds to silicone-treated surfaces.
  • Cures to a flexible, elastic seal.
  • Long-lasting, waterproof protection against elements.
  • Ideal for ultralight gear and rainwear.
  • Previously known as SIL Net for versatility.
  • Average Rating out of 5:
  • Price Range: $11.78
  • Material: Silicone
5

Loctite Gray RTV 5699 Silicone Sealant

  • High-performance silicone sealant for durable applications.
  • Designed for leak-proof sealing in various environments.
  • Temperature resistant for indoor and outdoor use.
  • Easy to apply with a precision dispensing tube.
  • Compatible with many materials including metals and plastics.
  • Ideal for automotive, plumbing, and household repairs.
  • Fast-curing formula ensures quick project completion.
  • Average Rating out of 5:
  • Price Range: $8.59
  • Material: silicone_rubber
6

Ford RTV Silicone Sealant [5 oz]

  • High temperature RTV silicone sealant for durability.
  • Specifically designed for Ford diesel engines.
  • Fast curing time for quick applications.
  • Non-corrosive formula ensures vehicle safety.
  • High viscosity for effective sealing performance.
  • Ideal for automotive and engine maintenance tasks.
  • Trusted genuine Ford fluid for reliability.
  • Average Rating out of 5:
  • Price Range: $22.50
  • Material: Silicone
7

3M Silicone Paste [08946] - 8 oz Clear

  • 100% silicone lubricant for optimal performance.
  • Safe on rubber and plastic vehicle parts.
  • Thick film application for long-term use.
  • Thin film option for nearly invisible protection.
  • Resistant to severe conditions and extreme temperatures.
  • Prevents sticking, squeaking, and corrosion effectively.
  • Easy to apply for efficient maintenance.
  • Average Rating out of 5:
  • Price Range: $31.25
  • Material: Silicone
8

FORTIVO 2 Pack Seam Sealer - Black

  • Bonds to all surfaces: metal, painted, primed.
  • Quick-curing: ready for paint in just 30 minutes.
  • All-weather performance: flexible, durable, weather-resistant seal.
  • No surface prep needed for easy application.
  • Compatible with standard urethane caulk guns.
  • Versatile use: ideal for cars, trucks, RVs.
  • Trusted by professionals for high-quality repairs.
  • Average Rating out of 5:
  • Price Range: $27.99
  • Color: Black
  • Material: Polyurethane
9

Permatex Black Silicone Sealant [12.9 oz]

  • Sensor-safe, versatile black RTV sealant.
  • Perfect for indoor and outdoor applications.
  • Waterproof and flexible for durable seals.
  • Resists water, weather, and vibration damage.
  • Temperature range: -75°F to 450°F.
  • Ideal for door frames and electrical connections.
  • Repairs and secures various materials effectively.
  • Average Rating out of 5:
  • Price Range: $16.60
  • Material: Glass, Plastic, Metal, Fabric
10

Motorcraft RTV Silicone Sealant [10.3 oz]

  • High-quality RTV sealant for reliable performance.
  • Designed for automotive applications and repairs.
  • Genuine Ford part ensures perfect fit.
  • Resistant to oil, water, and temperature changes.
  • Easy application for quick and efficient sealing.
  • Compact size for convenient storage and use.
  • Lightweight design minimizes shipping costs.
  • Average Rating out of 5:
  • Price Range: $25.86
11

Permatex Blue RTV Silicone Gasket Maker [3 oz]

  • Replaces any cut gasket effectively.
  • Universal fit for various applications.
  • Forms reliable, durable gaskets.
  • Resists cracking, shrinking, and migrating.
  • Safe for use with oxygen sensors.
  • Temperature range: -65°F to 500°F.
  • Ideal for valve covers and oil pans.
  • Average Rating out of 5:
  • Price Range: $10.49
  • Material: Silicone
12

3M Marine Grade Silicone Sealant [3 oz]

  • High-quality marine-grade silicone sealant.
  • Ideal for above waterline applications.
  • Non-yellowing and non-sagging formula.
  • Adheres to various surfaces effectively.
  • Moisture-curing for reliable sealing.
  • Suitable for industrial and occupational use.
  • Comes in a convenient 3 oz tube.
  • Average Rating out of 5:
  • Price Range: $19.07
  • Color: White
  • Material: Mixed
13

Versachem Mega Grey OEM Silicone [3 oz]

  • Cures into strong silicone rubber for gaskets.
  • Designed for high performance in import engines.
  • Set time: 8-10 minutes for quick use.
  • Cure time: 12-24 hours for durability.
  • Maintains flexibility for long-term applications.
  • Works best on silicone, cork, and rubber gaskets.
  • Easy to apply for efficient gasket formation.
  • Average Rating out of 5:
  • Price Range: $8.29
  • Material: Aluminum,Rubber,Silicone
14

BUFFZIT Black Silicone Sealant (30g)

  • Durable seal for various automotive applications.
  • Resistant to extreme temperatures and weather conditions.
  • Strong adhesion for leak-proof performance.
  • Easy application with no special skills required.
  • Effective against vibrations and impacts.
  • Addresses water leakage and soundproofing issues.
  • Compact 30g size for convenient use.
  • Average Rating out of 5:
  • Price Range: $13.99
  • Material: Silicone
15

Red Devil Extreme Temperature Silicone Sealant

  • Ideal for HVAC/R applications.
  • Weather resistant from -60°F to 400°F.
  • Strong adhesion to various surfaces.
  • Flexible, durable seal that lasts.
  • Resists cracking, shrinking, and peeling.
  • Forms a weather-resistant seal easily.
  • Ensure clean, dry surfaces for best results.
  • Average Rating out of 5:
  • Price Range: $15.50
  • Size: ‎1 Pack
  • Material: Blend
16

POLIXEL Black RTV Silicone Sealant (1.8oz)

  • Fast curing for quick seal formation.
  • Multi-purpose for various applications.
  • User-friendly formulation for easy application.
  • Waterproof and weather resistant for durability.
  • Strong adhesive strength for lasting bonds.
  • Effective on metal, glass, plastic, ceramics.
  • Resists UV exposure and extreme temperatures.
  • Average Rating out of 5:
  • Price Range: $13.99
  • Color: Black
17

Visbella High Temp RTV Silicone Gasket Maker (3.7OZ)

  • High temperature resistance from -54°C to 343°C.
  • Waterproof and oil resistant for durability.
  • Good flexibility and elastic recovery after stretching.
  • Easy to disassemble without shrinking after curing.
  • Excellent pressure resistance, load-bearing capabilities.
  • Suitable for various automotive and industrial applications.
  • Quick-drying formula for efficient bonding.
  • Average Rating out of 5:
  • Price Range: $8.99
  • Material: Silicone
18

Ford TA-29 Ultra Silicone Sealant (2.4 oz)

  • High-quality RTV silicone for durable sealing.
  • Gray color blends with automotive components.
  • Resistant to oil and transmission fluids.
  • Safe for use on O2 sensors.
  • No odor for comfortable application.
  • Ideal for transmission and axle covers.
  • 2.4 oz tube for convenient use.
  • Average Rating out of 5:
  • Price Range: $6.36
  • Material: Silicone
19

cocomfix Fast Curing Windshield Adhesive (310ml)

  • Fast curing professional grade urethane adhesive.
  • High bond strength for durable auto glass repair.
  • Weather resistant for all climate conditions.
  • No primer needed for easy application.
  • Compatible with standard caulking guns.
  • Versatile for various automotive sealing applications.
  • Meets high industry standards for reliability.
  • Average Rating out of 5:
  • Price Range: $12.49
20

Loctite 5699 Grey Silicone Gasket Maker (80 ml)

  • OEM-approved for reliable automotive performance.
  • High torque applications exceed performance requirements.
  • Flexible and withstands high vibration effectively.
  • Low odor, noncorrosive formulation for safety.
  • Outstanding oil resistance for durability.
  • Ideal for various engine sealing applications.
  • Trusted by professionals worldwide in engine repair.
  • Average Rating out of 5:
  • Price Range: $4.97
  • Color: Grey
  • Material: Metal
21

Versachem Flowable Windshield Silicone [1.5 oz]

  • Forms a clear, tough, flexible seal
  • Resistant to weather and vibration
  • Set time: 1 hour, cure time: 24 hours
  • Ideal for glass, metal, wood, and plastic
  • Perfect for windshield and sunroof repairs
  • Works on rubber and concrete surfaces
  • Easy-to-apply flowable silicone formula
  • Average Rating out of 5:
  • Price Range: $10.52
  • Material: Silicone
22

Permatex High Temp Anaerobic Flange Sealant

  • High temperature resistance up to 400°F.
  • Fills gaps up to 0.020 inches effectively.
  • Maintains clamping loads for strong assemblies.
  • Ideal for rigid assembly gasket applications.
  • Perfect for automotive and industrial use.
  • Ensures leakproof seals in critical areas.
  • Easy to apply for quick repairs.
  • Average Rating out of 5:
  • Price Range: $33.45
  • Material: Silicone or High-Temperature Synthetic Rubber
23

FILA Silicone Finishing Kit with Spray

  • Includes silicone finishing spray and caulk tool.
  • Easy caulking for flawless surface finish.
  • Prevents air bubbles while spreading silicone.
  • Rapid dry technology for quick results.
  • Safe for all surfaces, including metals.
  • No residue left after application.
  • Suitable for indoor and outdoor use.
  • Average Rating out of 5:
  • Price Range: $23.40
  • Color: No Color
24

LOCTITE High-Temp Black Silicone Sealant (80 ml)

  • High-temperature resistant silicone sealant for various surfaces.
  • Flexible and durable, absorbs shock and movement.
  • Waterproof, ideal for indoor and outdoor applications.
  • Resists oils, weather, and grease for tough conditions.
  • Tack-free in one hour, full strength in 24 hours.
  • Perfect for electrical insulation and sealing ductwork.
  • Easy to apply with a convenient 80 ml tube.
  • Average Rating out of 5:
  • Price Range: $6.60
  • Material: Silicone
25

LATICRETE Latasil Silicone Sealant #88

  • High performance silicone sealant for durability.
  • Easy to smooth and tool for application.
  • Excellent for masonry construction and sealing.
  • 25% extension and compression movement capacity.
  • Perfect for ceramic tile and glass joints.
  • Suitable for window framing applications.
  • Silver Shadow color blends with many surfaces.
  • Average Rating out of 5:
  • Price Range: $23.95
  • Material: Silicone
26

Cyclo Silicone Spray (C33V)

  • 200% more silicone than leading competitor.
  • Effectively lubricates, seals, and protects surfaces.
  • Prevents sticking and freezing mechanisms.
  • Stops squeaky door hinges and drawers.
  • Protects plastics, rubber, and leather from elements.
  • Ideal for gears and moving parts maintenance.
  • Extends lifespan of tools and equipment.
  • Average Rating out of 5:
  • Price Range: $26.02
  • Material: Silicone
27

Versachem Black RTV Silicone Sealant [10.3 oz]

  • High strength, moisture curing RTV silicone sealant.
  • Durable and flexible for long-term performance.
  • Forms tough, leak-proof silicone rubber material.
  • Resists aging and weathering effectively.
  • Temperature range: -100°F to 450°F.
  • Ideal for home, marine, and automotive applications.
  • Excellent bonding for various materials and surfaces.
  • Average Rating out of 5:
  • Price Range: $18.44