The Bostik Pro PU91 Construction Sealant is a professional-grade polyurethane sealant designed to provide a durable, permanently flexible and weather-resistant seal for a wide range of construction and expansion joint applications. Supplied in a 300ml cartridge, it offers excellent adhesion to most common building materials without the need for a primer on many substrates.

Ideal for sealing movement joints, concrete, brickwork, masonry, timber, steel, aluminium and many other construction materials, PU91 provides excellent resistance to weathering, ageing and UV exposure. Once cured, it can be painted, making it suitable for both interior and exterior building projects.

Suitable for professional builders, contractors and DIY users, Bostik Pro PU91 delivers reliable long-term sealing performance for demanding construction applications.

Key Features

• Professional polyurethane construction sealant
• White finish
• 300ml cartridge
• Permanently flexible
• Paintable after curing
• Excellent adhesion
• Interior and exterior use
• Weather resistant
• UV resistant
• Professional trade quality

Specifications

• Brand: Bostik
• Product Range: Pro Sealants
• Model: PU91
• Product Type: Polyurethane Construction Sealant
• Colour: White
• Capacity: 300ml
• Packaging: Cartridge
• Cure Type: Moisture Curing Polyurethane

All dimensions are approximate.

Brand Information

Bostik is a leading global manufacturer of professional adhesives, sealants and construction chemicals. Trusted by tradespeople worldwide, Bostik products deliver reliable performance, durability and innovative bonding and sealing solutions.

Why Buy From Us

• Trusted UK Supplier
• Fast dispatch from UK stock
• Competitive pricing
• Friendly customer support

Delivery

We aim to dispatch all orders placed by 1pm the same day.

We offer 2 delivery services:

Standard 3-5 working day - £5.95

Next Working Day - £7.99

Please note that some items on our site do come direct from the supplier and may not be available on Next Day Delivery.

Collection

We offer a click and click service from our Dundee Depot.

We aim to have orders ready to collect within 24 hours. Please note that this may not be possible if the item is not held in stock and needs to come on from the supplier.