Walraven Pacifyre® FPW & IWM III – Calculator
Determine exactly how much wrap material to cut to achieve the required number of layers for your fire stopping application.
From hesitant to confident — that’s the shift every installer can make. With Walraven Pacifyre®, you don’t have to figure out passive fire protection on your own.
We support you with expertise, easy-to-install solutions, and hands-on guidance when you need it.
Because when the right products, guidance and tools come together — you can handle it yourself, with confidence.

A passive fire protection system (or fire stopping) is used to seal openings and gaps in fire-rated walls and floors. The primary purpose is to maintain fire compartmentation—restricting the spread of flames, smoke, and toxic gases between different rooms or building levels for a specific time.
It can be overwhelming due to the local regulations, or the process could feel complex.
You can do it yourself!
With tested systems, guidance and expert support, you can move forward with confidence from design to install.
Minimise errors, reduce rework and deliver compliant results in buildings

Remove uncertainty from passive fire protection in your installations through clear guidance and direct access to experts. Never feel alone.

Designed for ease of use, Walraven Pacifyre® solutions are intuitive to install and backed by technical support before, during and after installation.

We don’t just supply products; with practical content, training, tools, and samples, Walraven helps you build confidence in passive fire protection.

Walraven Pacifyre® products are not just tested in-house but also externally to meet high fire safety standards, so you can comply with peace of mind that they work on site too.

Every pipe or cable penetration is a potential weak point in your fire protection strategy. Walraven Pacifyre® solutions help you seal these openings, maintain fire resistance and keep your project compliant.
Walraven Pacifyre® solutions are designed to:

Expansion joints, seams and void spaces are critical points where fire and smoke can spread unnoticed. Walraven’s Pacifyre® sealing products help you handle movement, maintain fire ratings, and install with confidence across every phase of your project.
These compliant solutions provide:
Determine exactly how much wrap material to cut to achieve the required number of layers for your fire stopping application.
Find the right passive fire protection solution by selecting a few project-specific filters.
From an initial product question to support during installation, we are ready to help you move your project forward.
Pre-assembled fixing systems ready for installation that reduce on-site labour, minimise waste and improve planning.
From design calculations to installation guidance, our engineering services support every stage of your project.
17 products
Pre-coated mineral wool board for mixed penetration seals
U2006
The perfect fire protection sealant for smaller pipes & cables
U04105
Paintable selant for linear joints and penetration seals
U04110
U04115
ablative coating for cables and pipes
U2010
for sealing annular gaps
U0822
U0487
The easy to fix fire collar for fire resistant sealing of plastic and multi-layer pipes
U0402
The most flexible fire protection solution for plastic and multi-layer pipes
U0423
The standard acrylic sealant with low indoor emission
U04100
U0485
Basic fire collar for plastic and multi-layer pipes
U0438