Multiversity Project in Blackpool: Wall Joint Sealing
Between July and September 2026 we sealed roughly 1,300 linear metres of vertical and horizontal wall joints on the Multiversity Project in Blackpool, a multi-storey build, working from a cherry picker boom.
- Project
- Multiversity Project in Blackpool
- Our scope
- Vertical and horizontal wall joints, roughly 1,300 linear metres
- Sealant
- Arbo MP20 modified polymer, with bond breaker tape
- Dates
- July to September 2026
A multi-storey build, sealed joint by joint
The Multiversity Project in Blackpool is a multi-storey build, and our part of it was the wall joints: the vertical and horizontal joints between the concrete wall panels, roughly 1,300 linear metres in all. We were on the job from July to September 2026, and the package is now complete.
Joints like these decide how a wall performs. Each one is a deliberate gap that lets neighbouring panels move as temperatures change and as the structure settles into its loads. The sealant keeps rain and driven water out of that gap, and it has to stretch and recover for years without letting go of either side.
On a multi-storey elevation the joints run in long, repeating lines, from the base of the wall to the top. A consistent method matters as much as the product, because a weak patch in one bay can become a leak path.
Wall joints, vertical and horizontal
Our package on this project was the wall joints:
- Vertical joints between the concrete wall panels.
- Horizontal joints between the concrete wall panels.
- Roughly 1,300 linear metres in total across the multi-storey structure.
- Completed between July and September 2026.
Vertical and horizontal joints behave a little differently. Vertical joints carry water straight down the face of the wall, while horizontal joints can hold it, so both need a clean, continuous bead that is properly bonded along its whole length. Where a vertical and a horizontal joint cross, the sealant has to run through the junction without a break.
How the joints were prepared and sealed
Cleaned
Every joint was cleaned before anything went in, so the sealant had a clean surface to grip on both faces of the joint.
Bond breaker tape
Bond breaker tape was fitted in each joint before sealing. It stops the sealant sticking to the back of the joint, so it is held on the two sides only.
Sealed with MP20
The joints were sealed with Arbo MP20, a one-part modified polymer sealant, applied along the full length of each joint.
Reached by boom
The joints were accessed using a cherry picker boom, so applicators could work along the wall from a stable platform.
Bond breaker tape in a precast joint
Video description (the clip has no sound): filmed from a boom lift on the Multiversity Project in Blackpool. It starts with a view across the site, then moves in along a wide horizontal joint between two precast concrete panels. On the left the joint is already sealed with grey sealant. Further along, the joint is still open and the black bond breaker tape can be seen at the back of it, so the sealant will bond to the top and bottom edges of the joint only, not to the back.
Insured & pre-qualified
Peace of mind for homeowners, builders and main contractors.
- £10m Employer’s LiabilityInsurance cover
- £5m Public Liability & Professional IndemnityInsurance cover
- Constructionline Silver member
- CSCS Skilled WorkerSealant Applicator (NVQ Level 2)
Over 20 years in construction
Products we use
Professional-grade sealants and adhesives from leading manufacturers.
Brand names and logos are trademarks of their respective owners and are shown to identify products we use. No endorsement is implied.
Why a modified polymer sealant suits concrete wall joints
Arbo MP20 is a one-part modified polymer sealant. One-part means it comes ready to use from the cartridge or sausage, so there is nothing to mix in the basket of a boom. Modified polymer sealants are widely used on concrete and precast joints because they stay flexible, bond well to concrete and cope with weather exposure.
Bond breaker tape is the other half of that detail. Without it, sealant can stick to the back of a joint as well as the two sides, and a bead held on three faces tears as soon as the panels move. With the tape in place, the bead is anchored on the two sides only and can stretch and recover the way it was designed to.
That combination, a clean joint, bond breaker tape and a flexible one-part sealant, is what we used on the Multiversity Project in Blackpool.
Boom access for a multi-storey elevation
A cherry picker boom is a good fit for long runs of wall joints because the basket can be driven along the elevation, up and down, and held steady at the joint. It keeps the applicator at the working position for the full length of each bead, which is how you get a continuous, even finish.
Our team holds IPAF 3a/3b and PASMA cards for work at height, and risk assessments and method statements (RAMS) are available on request before we start.
More concrete joint sealing
We seal wall joints, movement joints and floor joints in concrete for main contractors, developers and building owners. If you have a multi-storey or precast project, these pages explain more about what we do:
concrete joint sealing · structural movement joints · precast concrete joint sealing · expansion joint sealing · commercial mastic contractor · our Guildford car park project · all our projects
About this project
What did Pioneer Sealants do on the Multiversity Project in Blackpool?
We sealed the vertical and horizontal wall joints on the multi-storey build: roughly 1,300 linear metres in total. Each joint was cleaned and fitted with bond breaker tape before it was sealed, and the work ran from July to September 2026.
Which sealant was used on the Blackpool wall joints?
We used Arbo MP20, a one-part modified polymer sealant, with bond breaker tape fitted in each joint beforehand so the sealant is held on the two sides of the joint and can move with the panels.
How were the joints reached?
The joints were accessed using a cherry picker boom, which gave our applicators a stable platform to work from along the vertical and horizontal lines of the wall.
Can you seal the wall joints on our multi-storey project?
Yes. Send drawings, a joint schedule or a few photos to office@pioneersealants.co.uk, or call 01234 607 252. We will come back with questions about access, joint sizes and programme, and then with a quote.
Have wall joints that need sealing?
With over 20 years in construction, we know what a main contractor needs from a sealant package. Send drawings, a joint schedule or photos to office@pioneersealants.co.uk or call 01234 607 252.
- Opening hours
- Monday – Friday8:00am – 6:30pm
- Saturday9:00am – 4:00pm
- SundayClosed
