• +/- 25% flexibility
• High modulus
• Extremely elastic
• Bubble and primer free
• Interior and exterior use



BOSTIK PRO PU91 CONSTRUCTION POLYURETHANE SEALANT is a professional grade polyurethane sealant developed for sealing construction joints subject to high movement.

This white PU sealant has a high modulus formulation and is extremely elastic with up to 25% movement capability.

Suitable for interior and exterior applications, Bostik PU91 is bubble and primer free, can weather environmental stress, and is ideal for joints that will experience a lot of movement and traffic, such as gallery floors in high rises, or warehouse floors.

• Developed for construction joints subject to high movement
• +/- 25% flexibility - allows for movement
• Ideal for sealing expansion joints in floors and facades

Delivery (UK mainland only)

 

Next Day: £5, or FREE over £40

- Order by 9pm Mon-Thu: next working day

- Order Fri to 5pm Sun: Monday

- Order after 5pm Sun: Tuesday

 

Pre-12pm: £10

- Same cut-offs as Next Day above

 

Saturday & Sunday: £10, or £5 over £40, or FREE over £75

- Saturday: order by 6pm Fri

- Sunday: order by 4pm Sat

 

Heavy items (over 30kg)

- Mon-Fri only. Order by 6pm and allow up to two working days

- Order after 6pm Thu: arrives after the weekend

 

Supplier items

- Sent directly by the supplier, so timings vary. Lead times appear on the product page in working days (Mon-Fri)

 

More about delivery 

Next Business Day Collection (eligible items)

- Order by 9pm Mon-Thu: collect next day

- Order after 9pm Thu to 5pm Sun: collect Monday

- Heavy items (over 30kg): allow up to two working days

 

Opening hours

- Weekdays vary by branch: open 6:30am-7am, close 6pm-8pm

- Saturday: 7am-6pm

- Sunday: 9am-4pm

 

Check your local store's hours and that it's open before visiting. Please wait for our text or email before collecting.

 

Holding your order
We'll hold it for 14 days, then automatically refund your original payment method.