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Red 3 oz Hi-Temp Silicone tube in caulk gun format

J-B Weld

J-B Weld Hi-Temp Silicone Red 3 oz sealant

SKU CH-V48M-SJT7Y

High-temperature red silicone sealant in a 3 oz tube for bonding and sealing automotive moldings, trim, windows, windshields, door frames and lens housings

  • Withstands extreme heat with hi-temp silicone formula
  • Seals windshields, door frames and lens housings securely
  • Bonds interior trim and moldings for lasting repairs
  • Water-resistant RTV compound resists UV, mold and mildew
  • Convenient 3 oz tube for precise application control

Hi-Temp Silicone Red 3 oz Sealant

J-B Weld Hi-Temp Silicone Red is a hybrid caulk formulated for bonding and sealing applications where heat resistance is required. The 3 oz tube delivers a high-strength bond in a distinctive red colour suitable for automotive and general repair tasks.

Verify Surface and Temperature Needs

Confirm that the substrates you intend to bond or seal are compatible with a hybrid silicone formulation and that operating temperatures fall within the product's rated range. The tube size suits smaller jobs; calculate coverage so a single 3 oz unit will complete the repair without interruption.

Replaces Standard RTV and Generic Caulks

This sealant upgrades from basic room-temperature vulcanizing silicones or all-purpose caulks that lack equivalent heat tolerance or adhesion strength. The switch is worthwhile when the repair involves mouldings, trim, glass or lens housings exposed to elevated temperatures or vibration.

How it compares

Measured against everything we stock in Electrical Trade Tools & Kits, at today’s prices. Recalculated every night.

Price $4.99
Cheaper than about 98% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameJ-B WELD

Questions about this item

Does the 3 oz tube include a nozzle or caulking gun, or must I buy them separately?

The tube is a standard squeeze cartridge; a caulking gun is not included and must be purchased separately if preferred.

Should I choose the red 3 oz Hi-Temp Silicone or a different colour or size for automotive sealing?

The red 3 oz Hi-Temp Silicone is formulated for high-temperature bonding and sealing of moldings, trim, windows, windshields, door frames and lens housings; other colours or sizes are separate products.

What does the 3 oz size mean for coverage when sealing a windshield or door frame?

The 3 oz cartridge provides enough material for typical automotive sealing jobs such as a windshield perimeter or door frame, yielding a continuous bead several metres long depending on bead diameter.

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