No featured offers available
Learn more

No featured offers available

We feature offers with an Add to Basket button when an offer meets our high quality standards for:

  • Price,
  • Delivery option, and
  • Customer service
“No featured offers available” means no offers currently meet all of these expectations. Select See All Buying Options to shop available offers.

Product Safety
Flammable liquid and vapour. May cause drowsiness or dizziness.
Danger
  • Flammable liquid and vapour.

  • May cause drowsiness or dizziness.

  • Repeated exposure may cause skin dryness or cracking.

Everbuild – Evercryl – Emergency Roof Repair Cartridge – Instant Waterproofing Roof Repair – Suitable For Damp and Wet Conditions – Grey – 300ml

4.4 4.4 out of 5 stars 299 ratings

Grey
  • Resin based, fibre re-enforced roof repair compound formulated from lightfast acrylic polymers to withstand sunlight for longer periods than traditional bitumen.
  • Effective on all common roofing surfaces and types including concrete, bituminous, corrugated iron, tile and more.
  • Instantly waterproof when applied, providing an instant repair in wet and or frosty conditions down to - 5°C including during rain fall.
  • Once dry the resulting flexible membrane is resistant to algae and fungal growth.Also suitable to be used for repairing guttering, down pipes, vents and more.
  • Apply using a caulk, sealant / adhesive cartridge application gun, we recommend the Everbuild Power Pro Heavy Duty Sealant / Adhesive Cartridge Applicator Gun
See more product details

Similar item to consider

Amazon's Choice
Brief content visible, double tap to read full content.
Full content visible, double tap to read brief content.

From the manufacturer

About us

We are passionate about the products we produce, we have always worked on the simple premise that Trade Users will only come back for good products, so that’s all we make! This simple philosophy combined with a commitment to invest in new product development and manufacturing infrastructure has seen Everbuild - A Sika Company grow into the UK’s sealant, adhesive and building chemical brand. Everbuild - A Sika Company are owned by Sika AG, a globally active speciality chemicals company offering a comprehensive range of products, including waterproofing systems, sealing, bonding and speciality mortars etc, across many construction and associated sectors.

WORLD CLASS MANUFACTURING

Over 80% of our range is manufactured in our own factory with large scale manufacturing capacity across all our core product areas, we can produce in excess of 55 million cartridges a year and with our new polymer plant we even make our own PVA, Wood Adhesive and Acrylic Polymers.

Our manufacturing plant gives Everbuild - A Sika Company the ability to compete on a global scale, and our customers the peace of mind that they are dealing with a manufacturer with in-depth technical ability

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Regardless of your statutory right of withdrawal, you enjoy a 30-day right of return for many products. For exceptions and conditions, see Return details.

Feedback

Everbuild – Evercryl – Emergency Roof Repair Cartridge – Instant Waterproofing Roof Repair – Suitable For Damp and Wet Conditions – Grey – 300ml


Found a lower price? Let us know. Although we can't match every price reported, we'll use your feedback to ensure that our prices remain competitive.

Where did you see a lower price?

Price Availability
/
/
/
/
Please sign in to provide feedback.

Looking for specific info?

Customer reviews

4.4 out of 5 stars
299 global ratings

Review this product

Share your thoughts with other customers

Customers say

Customers find the sealant easy to apply and effective for preventing leaks. They appreciate its simple application and quick repair. However, some customers have mixed opinions on the nozzle quality.

AI-generated from the text of customer reviews

27 customers mention ‘Quality’23 positive4 negative

Customers are satisfied with the sealant's quality. They say it works well, is easy to apply, and cures quickly. Some mention it fixes issues like felt roof leaks and onduline roof problems.

"Good products" Read more

"...Overall the results are pretty good though, with vast majority of holes sealed up and holding out to torrential downpours...." Read more

"...Laid in hot and damp conditions, worked perfectly and repaired a cracked fibreglass roof...." Read more

"Worked very well on felt roof leak IN THE RAIN!!" Read more

17 customers mention ‘Ease of application’14 positive3 negative

Customers find the sealant easy to apply with the provided nozzle. It doesn't require much pressure to get it out.

"The product was simple to use with the nozzle provided. Didn't need much pressure to get it out...." Read more

"Was easy to apply .. with prime had the next day so managed to patch up cracked roof tile over Xmas period until I could repaired properly" Read more

"...This product sealed it and continues to do so. Easy to apply, if a little messy (gloves deffo needed) as flat applicator would not apply to curved..." Read more

"...nozzle wasn't missing from the delivery otherwise a very good and easy to use" Read more

12 customers mention ‘Leak prevention’12 positive0 negative

Customers find the product effective at preventing leaks. It seals most holes and effectively handles gaps up to 2 cm.

"...Overall the results are pretty good though, with vast majority of holes sealed up and holding out to torrential downpours...." Read more

"Appears to have cured leak on flat roof. Other silicones didn’t work. This one did! Happy 😃..." Read more

"...It remained tightly sealed, effectively handling gaps up to 2 cm. However, the new version is of subpar quality...." Read more

"...much success this stuff can be applied as thick as you want and stopped my leaks" Read more

5 customers mention ‘Repairability’5 positive0 negative

Customers find the product effective for roof repair. It works well and is simple to use.

"...Laid in hot and damp conditions, worked perfectly and repaired a cracked fibreglass roof...." Read more

"Very easy to apply with the nozzle provided and so far so good with the repaired roof!" Read more

"Easy to use really useful for a repair ," Read more

"Good Repair Mastic..." Read more

6 customers mention ‘Nozzle quality’3 positive3 negative

Customers have different views on the nozzle quality. Some say it's flat, while others say no nozzle was delivered with the sealant.

"...but what made it so amazingly handy for the job we did was its flat nozzle, without which we'd not've been able to do the job, tho our job might..." Read more

"Ordered two. No nozzle supplied. How am I supposed to apply the stuff? Rubbish. I'll be returning this." Read more

"No Nozzle!!!!" Read more

"No nozzle was supplied with the sealant. I note that this has been common feedback from several buyers. Come on Amazon this should not be happening." Read more

Good Repair Mastic
5 out of 5 stars
Good Repair Mastic
The product was simple to use with the nozzle provided. Didn't need much pressure to get it out. I was repairing a tear in a pent shed roof after my neighbours branch fell on to it. The hole in the photo is before I uncurled the felt from underneath the hole so it looked like a tear. I didn't bother spreading it with a brush or knife as it good enough.
Thank you for your feedback
Sorry, there was an error
Sorry, we couldn't load the review

Top reviews from United Kingdom

  • Reviewed in the United Kingdom on 11 October 2024
    Colour Name: ClearVerified Purchase
    Good products
  • Reviewed in the United Kingdom on 12 September 2022
    Colour Name: ClearVerified Purchase
    The product was simple to use with the nozzle provided. Didn't need much pressure to get it out. I was repairing a tear in a pent shed roof after my neighbours branch fell on to it. The hole in the photo is before I uncurled the felt from underneath the hole so it looked like a tear. I didn't bother spreading it with a brush or knife as it good enough.
    Customer image
    5.0 out of 5 stars Good Repair Mastic
    Reviewed in the United Kingdom on 12 September 2022
    The product was simple to use with the nozzle provided. Didn't need much pressure to get it out. I was repairing a tear in a pent shed roof after my neighbours branch fell on to it. The hole in the photo is before I uncurled the felt from underneath the hole so it looked like a tear. I didn't bother spreading it with a brush or knife as it good enough.
    Images in this review
    Customer image
    Customer image
    One person found this helpful
    Report
  • Reviewed in the United Kingdom on 30 June 2020
    Colour Name: GreyVerified Purchase
    Used to seal corrugated steel roof on garage, which it has done pretty well. BUT its very weird stuff to use, and not sure if I actually applied it correctly. The theory is you apply a wide bead of blob which then settles to seal the gaps. In my case it just skinned and sat there - but it was pretty warm and sunny - so I expect that was the cause. Overall the results are pretty good though, with vast majority of holes sealed up and holding out to torrential downpours.
    Plan to overcoat whole roof with the evercryl paint and that should finish the job off nicely
    One person found this helpful
    Report
  • Reviewed in the United Kingdom on 24 May 2024
    Colour Name: ClearVerified Purchase
    Appears to have cured leak on flat roof. Other silicones didn’t work. This one did! Happy 😃
  • Reviewed in the United Kingdom on 27 April 2020
    Colour Name: ClearVerified Purchase
    This stuff works easily as well as any other roofing product but this is UV-resistant (& has stood up well to UV the last 2 years), but what made it so amazingly handy for the job we did was its flat nozzle, without which we'd not've been able to do the job, tho our job might've been somewhat unusual! – I'll explain: we had a leak where the little flat roof over the dormer window joins the main sloping slated roof above it, & it turned out that the wood baton just underneath the slates just above the flat roof was exposed! – so the leak was literally absorbing thru the wood baton [which explains why it didn't leak as soon as the re-roofing was done - by the time we found it leaked, the roofing company'd gone bump, hardly surprising if they often did such shoddy work] (My son spotted this roofing defect with a torch) – idiot roofers hadn't extended the roofing felt over the baton – so we first of all had to cut a teeny bit off the bottom of the slates (the gap was only 3mm to 5mm & even this nozzle wouldn't go in that) which my son did with an angle-grinder [& several discs!] (we tested it on a slate from Poundland first, as I didn't wish the roof's slates to crack! - luckily the angle-grinder cut them very easily without cracking) & then when the gap was about 6mm to 8mm all the way along, this product's flat nozzle came into its own & was absolutely perfect for the job. Totally saved our bacon, couldn't've done without it. (So much for professional roofers doing the re-roofing+felting job & then other ones misdiagnosing what'd been done wrong.)
    7 people found this helpful
    Report
  • Reviewed in the United Kingdom on 3 August 2024
    Colour Name: ClearVerified Purchase
    Excellent
  • Reviewed in the United Kingdom on 6 January 2023
    Colour Name: ClearVerified Purchase
    Was easy to apply .. with prime had the next day so managed to patch up cracked roof tile over Xmas period until I could repaired properly
    One person found this helpful
    Report
  • Reviewed in the United Kingdom on 28 December 2020
    Colour Name: ClearVerified Purchase
    When I looked at this product, the picture clearly shows it fitted with a wide application nozzle. I'm like other customers and no nozzle was included with my delivery too.
    I now can't use this product until I can get a nozzle, which is going to be difficult as I don't know if you can get these wide nozzles easily!
    I contacted customer services and they were great. They gave me a refund straight away, however I'm conscious that if if buy another one, that to will be delivered without a nozzle.
    I'll probably have to buy one elsewhere 😕
    I'm disappointed with this Amazon!!!
    8 people found this helpful
    Report

Product Safety

This product is subject to specific safety warnings
  • Flammable liquid and vapour.

  • May cause drowsiness or dizziness.

  • Repeated exposure may cause skin dryness or cracking.