The Pressure Sensitive Adhesive Specialists in Adhesive Tapes & Glues

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Butyl Tape | Flashing Tapes | Sealing Tapes



Butyl Tape | Flashing Tapes | Sealing Tapes

What is Butyl Tape | Flashing Tapes | Sealing Tapes?

Butyl tape, alternatively known as mastic tape, comes in 3 main variations. These being, Flashing tapes, Sealing tapes, and High-Performance GCA Tapes. These adhesive tapes are suitable for adhering with the most common building materials while helping to achieve airtight and watertight seals for your applications. This tape is suitable for Pond / fish / wildlife and aquatic uses.

These tapes are sourced from one of the leading global butyl sealant tape manufacturers - HS Butyl International.

Third Party Video's of Butyl Tape in use

Please note: These videos are for informational purposes only, and the tapes used may be different variations than the ones we directly supply.

What are Sealing tapes used for?

Our double-sided butyl sealant tapes are relatively odour free & ideal for: joining membranes used in the building and construction industry to prevent the passage of water and or air. An example of this being for damp proof membranes and vapour control layers.

What are Flashing tapes used for?

These Butyl Rubber Self Adhesive Flashing Tapes are self adhesive tapes which are relatively odour free & ideal for the following uses:

  • Heating, ventilation, and air conditioning (HVAC) systems - sealing leaking pipes and chambers
  • Caravans - for sealing leaking panels
  • The building & construction industry - flashing, repairing gutters and downpipes
  • Conservatory construction and repair - flashing the roof and sealing T-bars
  • Roofing & cladding - flashing off roofs
  • Pond / fish / wildlife and aquatic uses

These tapes tend to be water resistant and waterproof.

Why use GCA tapes?

GCA Butyle Sealant Putty Tapes are relatively odour free and tend to be high performance based. Consequently, they are ideal for: external metal sheeting - sealing end and side laps in steel and aluminium roofing systems - sealing roof lights, ridge and eaves sealing in combination with foam fillers, metal liner sheeting - sealing end laps, sealing metal flashings, sealing penetrations to roof and wall cladding and similar applications.

These tapes tend to be National Federation of Roofing Contractors Class A Certified, and are excellent seal tapes.

These are suitable for use in steel and aluminium roofing systems and are Building Regulations Approved Document Part L Standard.

These double-sided butyl strips come in a putty-like consistency making them easy to apply and mould into position.

Which Manufacturer supplies these butyl tapes?

These sealant tapes are sourced from HS Butyl International, one of the leading, well trusted and global butyl sealant manufacturer's.

Available in multiple sizes

These self adhesive butyl glues are available in a multitude of sizes. Some of these being:
GCAs:

  • 4mm Bead x 12 Metres
  • 6mm Bead x 8 Metres
  • 6mm x 5mm x 9.6 Metres
  • 8mm Bead x 6 Metres
  • 9mm x 3mm x 13 Metres

Flashing tapes:

  • 100mm x 1.5mm x 20 Metres
  • 150mm x 1.5mm x 10 Metres
  • 150mm x 1.5mm x 20 Metres
  • 200mm x 1.5mm x 10 Metres
  • 200mm x 1.5mm x 20 Metres

Butyl Sealant tapes:

  • 4mm Bead x 12 Metres
  • 6mm Bead x 8 Metres
  • 6mm x 5mm x 9.6 Metres
  • 8mm Bead x 6 Metres
  • 9mm x 3mm x 13 Metres
  • 50mm x 1mm x 10 Metre (Black Membrane)

What is Butyl tape made from?

Butyl tape is made using Butyl rubber, which is a synthetic rubber made from the polymer isobutylene. Consequently, this gives it great impermeability properties, which make it ideal for applications which require an airtight or waterproof seal.

Bulk buying options available

If you are looking to buy these sealing and flashing sealant tapes in bulk, every option we have on offer comes with bulk buying options.

Temperature Ranges

These self adhesive butyl mastic tapes have a wide temperature range from -40°C to +°C.

Butyl Tape Uses

These flashing, sealing and GCA adhesive mastic beading strips are ideal for being used for or with:

  1. Sealing leaking pipes and chambers in Heating, ventilation, and air conditioning (HVAC) systems
  2. Caravans for sealing leaking panels
  3. Self adhesive flashing
  4. Self adhesive sealing strips
  5. Gutter repair "glue"
  6. Joining and sealing corrugated roof sheets
  7. Joining and sealing polycarbonate roofing sheets and roofing systems
  8. Conservatory repair
  9. Conservatory construction
  10. During conservatory roof replacements
  11. Downpipe repair
  12. Flashing sealing T-bars
  13. Sealing rooflights
  14. Flashing off roofs
  15. As a water resistant / waterproof roof sealant tape
  16. Window sealant
  17. External metal sheeting - sealing end and side laps in steel and aluminium roofing systems
  18. Repairing pond liners
  19. Joining liners
  20. Sealing roof lights
  21. Ridge and eaves sealing in combination with foam fillers
  22. Metal liner sheeting - sealing end laps
  23. Sealing metal flashings
  24. Sealing penetrations to roof and wall cladding
  25. Rubber gaskets
  26. Roof flashing tape
  27. Roof beading
  28. Roof sealing
  29. Roof sealant
  30. Flexible sealing tape
  31. Joint sealant
  32. Sealing metal flashings
  33. Washing machines
  34. Waterproof Mastic tape for metal roofing
  35. Damp proof membranes and vapour control layers
  36. Bedding greenhouse glazing sealant tape for use on glass onto an aluminium base
  37. Heating, Venting and Air Conditioning (HVAC) - Sealing leaking pipes and chambers
  38. Caravans - Sealing leaking panels
  39. Caravan sealant
  40. Motorhome sealant
  41. RV sealant
  42. Building & Construction - Flashing and repairing gutters and down pipes
  43. Conservatories tape - Flashing the roof and sealing T Bars
  44. Wide Roofing & Cladding tape
  45. Roofing & Cladding - Flashing off roofs
  46. Self adhesive waterproof roof sealant strip
  47. Roofing repair tape for fixing leaks
  48. Roof repair patch tape
  49. Roof mastic sealant tape
  50. Adhere deck fittings on boats
  51. Adhesive roof flashing
  52. As a roofers tape as a roof sealer
  53. Self adhesive rubber waterproof tape used on construction projects
  54. Waterproof sealant tape for roofs
  55. Waterproof joint sealing tape
  56. Self adhesive weatherseal tape
  57. Adhesive weatherseal tape
  58. Conservatories to brickwork
  59. Conservatory sealant
  60. Metal roof leak repair
  61. For use on and as a Flat roof repair tape
  62. Pipe seal / sealing tape
  63. Extra wide water proof tape
  64. Caravan waterproof sealant
  65. Caravans to a achieve a roofseal
  66. Caravan roof sealing & repair tape
  67. Window flashing tape
  68. Glazing
  69. Other similar applications

How to apply Butyl Tape?

Butyl tape is simple to apply. Firstly, make sure your surface is clean and free of grease and dirt. Once it is, remove it from the liner, mould into position and leave to set. It is as simple as that.

Questions people have asked us about these butyl tapes

Product questions for our 100mm x 1.5mm x 20 Metre Flashing Tape

Question: I will be undertaking a self-build project that is timber frame and timber clad. The windows I intend using are Andersen 400 windows (American company) with a nailing flange. In the instructions, they mention self-healing flashing and looking at various American web sites Tyvek Flex-wrap flashing for the sill and Tyvek straight flashing for sides and top are used. Whilst Tyvek flex-wrap is available in the UK only 150mm width is available not 250mm and Tyvek straight flashing is not available. Can you recommend a butyl flashing for weather protection and air leakage and that is self-healing butyl because some mechanical fixings on the vertical sections would penetrate the flashing? I look forward to hearing from you however if you need further information please do not hesitate to contact me. - Stephen

Answer: Morning Stephen, I feel that [this] flashing tape would help with this application as the adhesive is self-healing and 1.5mm thick. We do stock lead and white finishes in 200mm widths - Ian, Product Support Manager

Question: I need a flashing tape for sealing my polycarb roof to the wall. Is 200mm x 1.5mm x 10 Metres Flashing Tape the best choice? - Tony

Answer: Hi Tony, yes the 200mm would be perfect for this application, then simply decide on a facing colour of either white or lead - Ian, Product Support Manager

Question: Can this product stretch to form into corrugated roofing panels? - Live Chat

Answer: Hello, the product won't stretch as it is a butyl backed foil. It is very conformable though - Ian, Product Support Manager

Question: Will it bend sideways 90 degrees down the length of 100x125mm timber? ie form an upside-down U-shape; or will it crack or break at the bends? - Live Chat

Answer: Hello and thank you for your enquiry. The product would be fine for this application - Ian, Product Support Manager

Product questions for our: 150mm x 1.5mm x 10 Metre Flashing Tape

Question: Hi does this flashing tape do conservatories to brickwork? 99 % sure it does just making sure, as says washing machines and caravans - Wendy

Answer: Hi Wendy, yes this is the primary application for the flashing tape - Ian, Product Support Manager

Question: Hi there. I am in the process of replacing the roof for my conservatory with new polycarbonate. I see that this product is recommended for flashings for this type of work, which is great. I was looking at using something like DEKS KwikFlash or the Hambleside Danelaw FastFlash type products for the ridge and abutment flashings but wondered if you could tell me if the HS Butyl Flashing is the same specification as these products ie is its Aluminium stretch netting cast in polymer rubber for expansion and long term strength? I need a butyl backed flashing (definitely not bituminous!) that will not attack the polycarbonate sheeting. Am pretty certain this is the case with the HS Butyl but can you confirm for me, please? The abutment wall the flashing will go against is stone - again, can you confirm the HS Butyl will adhere satisfactorily to this, please? I should add that, in addition to the flashing tape for protection against water ingress, I will be dressing over the flashings with Code 4 lead, which will also help weather the butyl flashing. I am concerned, given they are quite a bit more expensive, that the KwikFlash or Fast Flash versions may be unnecessary 'over specify' in this scenario. If the HS Butyl meets the required specifications for the task in hand then it would be good to avoid what may be seen as an unnecessary expense! I would be most grateful for your thoughts regarding my enquiry and any advice offered would be warmly welcomed. Many thanks and best regards - Laurie

Answer: Good Morning Laurie, Thank you for your enquiry into the use of our flashing tape. I can confirm that this product is polycarbonate friendly and is used commonly for this type of application. The 1.5mm thick butyl adhesive is very aggressive and conformable, making it the perfect choice for creating a weather seal on uneven surfaces. The elasticity of the butyl will also allow for differential rates of expansion - Ian, Product Support Manager

Product questions for our: 150mm x 1.5mm x 20 Metres Flashing Tape

Question: Hi does this flashing tape do conservatories to brickwork? 99 % sure it does just making sure, as says washing machines and caravans - Wendy

Answer: Hi Wendy, yes this is the primary application for the flashing tape - Ian, Product Support Manager

Question: I would like to buy a flashing tape But what I want to know if any of the ones listed on your website are low in odour, as I want to insulate my car with it - Live Chat

Answer: The product is relatively odour free - Ian, Product Support Manager

Question: Is it coated with aluminium on top? And do you know how heavy is an m2 of that tape? - Live Chat

Answer: A 200mm x 20m weighs around 8.5kg - Ian, Product Support Manager

Question: Do you know the weight of the 150mm x20 mm by any chance? - Live Chat

Answer: It would be pro-rata 6.37kg approx - Ian, Product Support Manager

Product questions for our: 200mm x 1.5mm x 10 Metres Flashing Tape

Question: I will be undertaking a self build project that is timber frame and timber clad. The windows I intend using are Andersen 400 windows (American company) with a nailing flange. In the instructions they mention self healing butyl flashing and looking at various American web sites Tyvek Flex-wrap flashing for the sill and Tyvek straight flashing for sides and top are used. Whilst Tyvek flex-wrap is available in the UK only 150mm width is available not 250mm and Tyvek straight flashing is not available. Can you recommend a flashing for weather protection and air leakage and that is self healing because some mechanical fixings on the vertical sections would penetrate the flashing. I look forward to hearing from you however if you need further information please do not hesitate to contact me. - Stephen

Answer: Morning Stephen, I feel that [this] butyl flashing tape would help with this application as the adhesive is self healing and 1.5mm thick. We do stock lead and white finishes in 200mm widths - Ian, Product Support Manager

Question: I need a flashing tape for sealing my polycarb roof to the wall. Is 200mm x 1.5mm x 10 Metres Flashing Tape the best choice? - Tony

Answer: Hi Tony, yes the 200mm would be perfect for this application, then simply decide on a facing colour of either white or lead - Ian, Product Support Manager

Question: Can this product stretch to form into corrugated roofing panels? - Live Chat

Answer: Hello, the product won't stretch as it is a butyl backed foil. It is very conformable though - Ian, Product Support Manager

Product questions for our: 200mm x 1.5mm x 20 Metre Flashing Tape

Question: I need a flashing tape for sealing my polycarb roof to the wall. Is 200mm x 1.5mm x 10 Metres Flashing Tape the best choice? - Tony

Answer: Hi Tony, yes the 200mm would be perfect for this application, then simply decide on a facing colour of either white or lead - Ian, Product Support Manager

Question: Can this product stretch to form into corrugated roofing panels? - Live Chat

Answer: Hello, the product won't stretch as it is a butyl backed foil. It is very conformable though - Ian, Product Support Manager

Question: Will it bend sideways 90 degrees down the length of 100x125mm timber? ie form an upside down U-shape; or will it crack or break at the bends? - Live Chat

Answer: Hello and thank-you for your enquiry. The product would be fine for this application - Ian, Product Support Manager

Product questions for our: 4mm Bead x 12 Metres High Performance GCA High Performance Sealant Tape

Question: Want to stop internal leaks between glass and wood - Sandy

Question: Hi Sandy, please take a look at our GCA sealant range - Ian, Product Support Manager

Answer: Could you please advise if your 4mm bead is suitable for bedding greenhouse glass onto aluminium base. Thanks - Harry

Question: Hi Harry, yes this product is suitable for this application - Ian, Product Support Manager

Answer: Hi will this tape be ok for re sealing my car sunroof - Paul

Question: The gca will form a flexible weather seal, yes - Ian, Product Support Manager Hi which if any of the butyl's would you recommend for sealing a yacht window thanks - Liam

Answer: Hi Liam, all sizes of our GCA's are appropriate, it just depends on the size of your windows - Ian, Product Support Manager

Product questions for our: 50mm x 1mm x 10 Metre Black Membrane Jointing and Sealing Tape

Question: Hi, please can you tell me the thickness of this product. Many thanks - Adrian

Answer: Hi Adrian Thank you for your enquiry today, the total thickness of this product is 1mm - Kerry, Customer Support Manager

Question: Hi, is this suitable to join two pieces of Butyl liner in a pond? - Chris Hi Chris, yes it is suitable for this application - Ian, Product Support Manager

Product questions for our: 9mm x 3mm x 13 Metres High Performance GCA Sealant Tape

Question: Hi, which butyl sealant would you recommend for sealing deck hardware on a boat? For example, a metal cleat or stanchion so as to seal the bolt fastenings going through the fibreglass. Kind regards - John

Answer: Hi John, depending on the surface area you have to work with, you could use either our GCA range or the membrane jointing tapes - Ian, Product Support Manager

Who are Pressure Sensitive Adhesive Solutions?

PSA Solutions Ltd, are: Butyl sealant tape suppliers, based in Leicestershire, UK.

We have a large range of: mastic sealant tapes, in our Leicester warehouse, ready to be dispatched - normally - within 2-3 days.

So if you can not see the adhesive you are looking for contact our friendly sales team for free advice.

Where can I find out more about Butyl Tape?

To find out even more technical information about butyl rubber tape please see this Wikipedia page.

HS Butyl International Logo

Don't take our word for it, see what some of our past customers have said about products in this range.

A sample of the Reviews for some of our flashing tapes in this range

Name: Graeme

Your flashing tape is very useful in our business if supplying steel building kits. As it provides a permanent solution to windblown water ingress, sealing to old structures and cleaning up joints that have been abused in some way by users. All in all, I keep a roll in the car as part of my emergency kit.
5 stars



Name: Brian

I would give 5 out of 5 and would not go on a job without either the grey or white butyl flashing in my tool box.
5 stars



Name: Manoj

Score of 5.
5 stars



A sample of the Reviews for some of our sealing tapes in this range

Name: James

Brilliant product.
5 stars



Name: Paul

Hi Great Service, packed well received very quickly. Perfect product for the job sealing laps on roofing sheets, very easy to use.
5 stars



Name: Andy

5 stars.
I ordered the sealant tape from you one day and was so impressed that it arrived the very next day that I rung the number for PSA Solutions and explained that, with so many brickbats flying around, it's great to be able to throw a bouquet. THANK you, I said, for being so brilliantly efficient, it's greatly appreciated and I wouldn't hesitate in recommending you to others. All power to your elbow and long may you keep it up etc. Anyway, I was quite genuine in my call and it was excellent, prompt service and I was happy to telephone and say so.
What's it for?
I'm constructing a versatile garden building - it could be a garden office, it could have a Ping-Pong table in it, it could be an artists studio, you could store garden furniture in it. Whilst I'm here, it'll be a carpentry/joinery workshop. 3x2 insulated stud walls, wrinkly tin roof (with your sealant tape), skylights, wood cladding on two sides; corrugated iron on the backsides. Interior space 20x12foot with 20x8ft decking at the front, covered over by corrugated polycarbonate (see-through) roofing to keep the rain off when I work outside. Can't wait to get it finished, and I can't wait for these flipping winter storms to abate a bit as well!!
Incidentally, and by way of contrast, - at the same time that I ordered the sealant tape from PSA, I also ordered 12 cans of expanding foam filler from a different supplier for the underside of the corrugated iron roof, before I put up some 60mm Celotex insulation, I think it was the 8th of December(?). It arrived on the eighth of January. Not to put too fine a point on it. In The Following YEAR! !!! I was palmed off with two or three episodes of BS about couriers - twice they said: "Give us your address and we'll chase up the couriers." - Eh?? You should HAVE my address as part and parcel of an Amazon order. The order numbers staring you in the face. You HAVE my address, you muppet! Not impressed at all [with them].
So it was really good to be able to ring you when the goods arrived so quickly and offer a genuine and sincere compliment for your swift and efficient service.
Thank you again With warm regards
5 stars



Name: Geoff

Score 5.
5 stars



Name: Jay

After years of trying to make an artificial stream in my garden and being thwarted each winter when the cement lining cracked, I finally decided to use a liner. The only problem was how to fix the liner so that its edge just cleared the water level. I then found this wonderful product and have successfully used it to stick the liner to bare rock. It is also useful for securing the inevitable creases that form in the liner. I have found that it works equally well on butyl and on plastic liners. Highly recommended.
5 stars



A sample of the Reviews for some of our High-performance GCA tapes in this range

Name: Angus

The sealant tape we bought from PSA Solutions was good quality and at the right price. We used it as a lap tape for 6000 square feet of profile sheeting and associated flashings. We have no hesitation in recommending this product and will use it again on the next roofing job we undertake.
5 stars



Name: Geoff

Score 5.
5 stars



Name: Josias

Great product, work wonderfully for sealing door panel of my Seat Leon mk1. Easy ordering process, fast delivery, good quality product.
5 stars



Name: Paul

I used this product to install and seal a Motorhome Roof light into my Citroen Relay van. Because of the ribs on the roof, I was finding it difficult to just seal properly with silicone sealant. After doing a bit of internet searching I came across PSA Solutions found this product. It has exceeded my expectations considering to excellent price. The roof light has not leaked even with strong winds, heavy rain and travelling up the motorway at 70mph. If you're looking for an excellent sealing product then I would highly recommend it..
5 stars



Name: Dave

Needed to replace the glass in 2 Velux windows. As Velux overhaul kits very expensive decision to buy the glass locally. Not possible to get an original glass at 3-10-3 however 4-8-4 is available and also has an E coating so not much different. Needed a sealant when replacing and the original 5.5 mm Velux butyl sealing bead is ridiculously expensive so purchased from PSA at a very reasonable price. Size is not critical and 6 mm has worked fine. If I had purchased all from Velux cost would have been about GBP 160. Using PSA sealant and local supplied glass the cost was about GBP 65. So overall I would give a score of 5 to PSA both for quality and price.
5 stars



Name: Kenneth

I used this product to seal the windscreen trim on my wife's fiesta. It seems to be doing the job OK. But I should have used the 4mm sealant as the 6 was a little too thick.
4 stars



Name: Raheed

The mastic tape is a very effective seal 100% waterproof Easy to apply and easily managed.
5 stars



Name: Colin

5 star I use this for adhering a moister hygrometer to a subfloor To determine the amount of moister in a floor. Far cheaper than my trade suppliers and delivery Was spot on too.
5 stars



Images of these tapes

Grey versionWhite versionLead versionPutty versionPutty version foldedPutty close up 3Putty close up 1Putty close up 1Membrane version