Radon/DPM Double Sided Butyl Jointing Tape 50mm x 10m

By Damplas Product code: 20591 Pack size: Each

Product Details

Looking for a practical and cost-effective way to damp proof your loft conversion or basement refit using butyl tape? Try this double-sided one from Damplas. 

The tape uses a high-quality adhesive that bonds firmly to damp-proof materials or membranes. This means you can count on it to stick in areas with high amounts of moisture in the air, such as bathrooms, attics or basements.

There's also no chance of moisture seeping through your walls or floor and causing damage, as the butyl material is totally damp proof. It's supplied on a roll, so it's easy to use too. All you need to do is overlap your membrane material by a minimum of 150 mm and then apply the tape in between the two layers. Once you're done, apply a length of Damplas single-sided jointing tape to seal up the overlap.

• A high performance butyl mastic tape

• Used for joining damp proof and DPM

• Adhesive on both sides

• Methane gas resistant (tested to ISO15015-1, achieves 0.07 ml/ linear metre/day)

• BBA-approved

Technical Specification
Brand Damplas
Width (mm) 50
Material Butyl
Manufacturer ID 9NDC801
Width (mm) 50
Safety Data Sheet click here
Length (m) 10
Delivery details

DELIVERY OPTIONS (UK mainland only)

Next Day Delivery – £5.00 or FREE for orders over £25

  • Order before 9pm Monday to Thursday for next business day delivery
  • Order Friday to Sunday before 5pm for Monday delivery
  • Orders placed after Sunday at 5pm will be delivered the following Tuesday
Pre-12pm Delivery – £10.00 to arrive before 12pm on the scheduled days above
Saturday Delivery – £10.00 or £5.00 for orders over £25 & FREE for orders over £75 (order by 6pm Friday)
Sunday delivery – £10.00 or £5.00 for orders over £25 & FREE for orders over £75 (order by 4pm Saturday)
Times may vary for items being delivered directly from the supplier. For more information, please visit our delivery information page below.
Items over 30kg can only be delivered from Monday to Friday. If ordered before 6pm, please allow up to two business days for delivery. Orders placed after 6pm Thursday will be delivered after the weekend.
More about Delivery
Click & Collect details

Collection Details

Our opening times are 7am-8pm Monday-Friday, 7am-6pm Saturday and 9-4pm Sunday. Please check your local store is open on the store locator page, before you visit.

Once you have placed your order online, we’ll have it ready for you at the store you have selected in as little as 5 minutes. We will hold your order for 14 days, after which we will automatically generate a refund to the payment type you used to place the order.

Don’t forget your mobile number – Make sure your mobile number is added so that we can text you when your order is ready to collect. Please wait for your text or email before coming to collect your items.

If an item is eligible for Next Business Day Collection in store, the order must be placed by 9pm Monday to Thursday for collection the next day. Orders placed after 9pm on Thursday, and up to 5pm on Sunday, will be available for collection on Monday. For larger items over 30kg, please allow two business days.

Radon/DPM Double Sided Butyl Jointing Tape 50mm x 10m is rated 4.8 out of 5 by 40.
Rated 5 out of 5 by from Did what it said it would do Worker just like it was supposed to
Date published: 2022-12-05
Rated 4 out of 5 by from Butyl tape, good stuff and easy to use Bought this to copy the original factory additional sealing when I replaced the door real on a '08 Mini cooper. Tape was easy enough to work with, the backing came off easy and the tape was sticky and easily worked into the necessary shape. Only negative is the tape is actually a blue colour (photo looks black) so had to be careful with how visible it was after fitting (factory applied stuff was black) seems to have done the job anyway
Date published: 2022-10-05
Rated 5 out of 5 by from Great tape Great tape used for my pond liner stuck liner down very well
Date published: 2022-08-29
Rated 5 out of 5 by from Excellent Product Excellent product, extremely strong adhesive on both sides. Would highly recommend
Date published: 2022-08-09
Rated 5 out of 5 by from High Quality Reliable Double Sided Butyl Tape High quality double sided butyl tape that was very effective in creating a strong waterproof seal between my box profile roofing sheets. Very tacky once the backing tape removed so you need to ensure you're fully ready and in a position to place the tape without the need to reposition it or the pieces you're joining together.
Date published: 2022-05-16
Rated 5 out of 5 by from Worked great to repair a fish pond - and more reasonable price Works as described. I needed some double sided joining tape to repair some cracks and holes in a PVC goldfish pond liner. the usual sources via eBay are a bit pricey esp as I needed quite a bit to make sure I got all the leaks. I wasn't sure if this would as well, but in fact it really does work well for the task. I forgot that it is blue! (usually its black) However it actually looks nice and it has certainly done the trick and I have a lot left over for when next needed. It works best if the material it is glued to is dry and clean. A slight roughing with fine/medium sandpaper helps then it really does stick well. A week or so later its all looking fine and I am really pleased to have found this.
Date published: 2022-04-16
Rated 5 out of 5 by from Excellent for sealing hatches Use it in a marine environment hard to get hold of in a hurry but tool station had it.
Date published: 2022-03-28
Rated 5 out of 5 by from Double sided butyl tape Excellent product, good for waterproofing behind panel joints etc., butyl tape use over many decades even on large scale housing renovations
Date published: 2022-03-09
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