Everbuild 145 Butyl Rubber Sealant C3 Grey 145GY 489633 Box of 12

Everbuild 145 Butyl Rubber Sealant C3 300ml Grey – Trade Box of 12 - For Reliable Sealing and Waterproofing

Trade Box of 12 - Trade Price - Money Saver Deal

Colour: Grey

Sika MPN: 489633

Model: 145GY-12

Barcode: 5029347610357

Overview:

Everbuild 145 Butyl Rubber Sealant Grey – Trade Box of 12 is the cost-effective choice for regular sealing work where a durable, flexible weather seal is required. This non-setting butyl mastic is widely used for roof panel overlaps, cladding joints, glazing bedding and general maintenance sealing, helping to keep water out while accommodating movement.

Supplied as a trade box of 12 C3 cartridges, it’s ideal for contractors, installers and maintenance teams who need a consistent, reliable sealant across multiple jobs. Everbuild 145 typically bonds well to many common building materials without primer on sound, clean surfaces, but it is not paintable, so it’s best used where the grey finish will remain visible or hidden within the joint.

Key Features

• Trade money saver deal: box of 12 cartridges for high-use sealing work

• Butyl rubber sealant (butyl mastic) for long-lasting, flexible weather seals

• Suitable for internal and external applications where moisture is present

• Ideal for roof panel laps, cladding joints, seams and overlap sealing

• Commonly used for glazing bedding on suitable frames and structures

• Strong adhesion to many building substrates (often primerless on clean surfaces)

• Good resistance to weathering and water ingress

• Not paintable – choose where grey finish is acceptable

Specifications

• Brand: Everbuild

• Product Type: Butyl rubber sealant / butyl mastic

• Pack Size: Trade box of 12 cartridges

• Colour: Grey

• Cartridge Size: C3 (310ml nominal cartridge) – 300ml fill

• Model: 145GY

• Sika Code: 489633

Applications

• Sealing roof sheet overlaps and perimeter details

• Cladding joints, seams and lap joints to help prevent water ingress

• Bedding and sealing glazing on suitable frames and structures

• Pre-cast concrete panel joints and general construction junctions

• Maintenance sealing in industrial, agricultural and general building environments

How to Use

• Ensure surfaces are sound, clean and dry; remove dust, oil, grease and loose material.

• Cut the nozzle to suit the bead size and fit the cartridge into a standard cartridge sealant gun.

• Apply a steady bead, pressing the sealant into the joint/overlap for good contact.

• Tool lightly to finish avoid over-tooling as butyl mastics remain pliable.

• Inspect after exposure and top up where necessary on demanding external details.

Everbuild 145 Butyl Rubber Sealant Grey (Box of 12) – Key FAQs

• What do I receive in this trade box?
  A full trade box of 12 C3 cartridges of Everbuild 145 Butyl Rubber Sealant in grey, ideal for ongoing sealing, roofing and maintenance work.

• Is Everbuild 145 a non-setting butyl mastic?
  Yes, it’s a butyl-based sealant/mastic designed to remain flexible, making it suitable for lap joints, overlaps and areas that experience movement.

• Can I use it for roof panel overlaps and cladding joints?
  Yes. It’s commonly used to seal roof sheet laps, seams and cladding joints to help prevent water ingress in external environments.

• Is it paintable once applied?
  No. Everbuild 145 is not paintable, so it should be used where the grey finish is acceptable or where the joint will be concealed.

• Does it need primer?
  It often bonds well without primer on clean, sound surfaces, but surface preparation is critical. For unusual substrates, a small adhesion test is recommended.

• What about plastics such as uPVC?
  Compatibility can vary with plastics. If sealing to uPVC or unknown plastics, test first and avoid use where the manufacturer guidance does not confirm suitability.

Everbuild 145 Data Sheet

"Always read the Technical Datasheet prior to first use to ensure you have the correct information and  product for your application" 

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