The Bostik PU91 Sealant is a professional-grade polyurethane sealant developed for sealing construction joints subject to high movement.

Features:

• This 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 can weather environmental stress and is ideal for sealing joints that will experience a lot of movement and traffic, such as gallery floors in high rises, or warehouse floors.
• It has a 25% flexibility, which allows the user to move freely.
• In order to accommodate construction joints that move a great deal, this product was developed.
• The material is extremely elastic.
• Modulus of high strength.
• There are no bubbles nor primers on this product.
• The product can be used on both the interior and exterior of the house.

Technical data:

• Brand - Bostik
• Range - PU91
• Product Type - Construction Polyurethane Sealant
• Size - 310ml
• Colour - Black
• Form - Soft Gunnable Paste
• Storage/Shelf Life - Up to 15 months.

Standards & Certifications:

• Meeting the requirements of BS EN 15651:2017- parts 1 and 4; Sealants for façade and pedestrian walkway joints.

Please Note:

• Cannot be applied to surfaces which are wet or have frost or ice on them.
• Will not resist abrasion in floor joints.
• Do not use in swimming pools.
• Do not use for aquarium applications.
• Prevent entry of uncured sealant into drains or watercourses.
• Do not use on or against bitumen.
• Not suitable for bedding double glazed/insulating glass units into frames.
• Not suitable for pedestrian walkways.