Evo-Stik Roof & Gutter Sealant C20 Black

or 6 weekly interest-free payments of £0.50 with
13 in stock

2 - 3 Days

Product Code:





Weather resistant Butyl mastic sealant for exterior use. Size: 310ml
Intended for external weather sealing
Ideal for repairing exterior leaks
Bonds to most building materials
Because of its non drying nature it is ideally suited for lap joints where it will maintain a weatherproof seal.
Will cover 10 linear metres when applied with a 6mm bead.


  • Delivery Lead Time: 2 - 3 Days
  • Manufacturer Code: 30811656
  • Brand: Evo-Stik
  • Colour: Black
  • Subcategory: Roofing Sealants
  • Barcode: 5000403104775
  • Colour: Black

Express Nationwide Delivery

Next working day delivery when ordered before 2pm. Please provide a mobile number during checkout to receive tracking updates via text message.

Returns will only be accepted if you have submitted a return form. 

If you have an item you would like to return, please complete and submit a returns form.  We will then contact you with details of how to return your item. 

Faulty Products:

  • If this product is faulty and you notify us within 30 days of receipt, a refund or replacement will be issued once the faulty item is received by us. 
  • If you notify us of a faulty product after 30 days of receipt and within six months of receipt, we will arrange for the product to be repaired by the manufacturer (if applicable).  
  • If your product comes with a manufacturer’s warranty, we recommend you register the product you purchased.  If registered, the manufacturer maybe able to work with you directly to arrange a repair.  This can be the quickest resolution if your product develops a fault after 30 days of receipt. 

Unwanted Products:

  • If the product is no longer needed, or an unwanted gift, please keep the product in the original packaging and do not use it.