PU Foams | BaseTec

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High quality PU Foams products

PU Foams are versatile, high-performance solutions for sealing, filling, insulating, and protecting a wide range of construction applications. Designed to support both professional installations and everyday site work, they help create a more efficient building envelope by reducing gaps, improving air tightness, and enhancing thermal and acoustic performance.
This category includes foams for general gap filling, fire-rated sealing, elastic airtight applications, insulation and sound reduction, and adhesive bonding. Whether you are working around windows and doors, filling cavities in walls, roofs, and floors, or specifying products for passive fire protection and energy-efficient construction, PU Foams offer a practical solution for reliable results on site.
With options available in gun grade and handheld formats, the range gives you the right product for precision work, quick fixes, and fast application. If you need a dependable foam solution for sealing, insulating, or bonding, this category brings together the products you need in one place.

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Frequently Asked Questions About PU Foams

What is the difference between gun grade and handheld PU foam?

Gun grade foam is designed for professional use and requires a foam applicator gun, giving the user greater control, higher precision, and more accurate bead placement. It is typically the better choice for installers who need predictable expansion and repeat application over longer jobs. Handheld foam is ready to use with an attached straw, making it more suitable for DIY work or quick applications where convenience matters more than precision. Handheld foam usually expands more and is generally intended for single use, while gun grade products are often more efficient for controlled professional installations.

What are PU foams?

PU foam, or polyurethane foam, is widely used in construction for sealing gaps, insulating buildings, filling cavities, and improving air tightness around frames, joints, and service penetrations. It is especially common around windows and doors, where it helps reduce drafts, limit heat loss, and create a more secure seal between the frame and the surrounding structure. In larger building applications, PU foam can also support thermal performance and help reduce unwanted air leakage. Because it expands after application, it is useful for reaching irregular spaces that are difficult to fill with traditional materials.

Can PU foam help with acoustic insulation?

Yes, certain PU foams are designed to improve acoustic performance as well as thermal insulation. Foam used in walls, ceilings, floors, and mechanical rooms can reduce noise transfer by filling voids that would otherwise act as sound paths. In construction, this is especially useful where soundproofing is needed between spaces or where HVAC and service areas create unwanted noise. Acoustic foam also contributes to a more complete building envelope by reducing both sound leakage and energy loss.

What are PU foams used for in construction?

PU foams are used to seal, fill, insulate, and protect within the building envelope. They are commonly applied around windows and doors, in walls, roofs, floors, joints, cavities, and service penetrations where a reliable seal is needed. In practice, they help reduce drafts, improve thermal performance, limit sound transmission, and support airtight construction. They are also used in applications where controlled expansion and strong adhesion are important for a clean, professional finish.

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