Sealwise · Makers of waterproof boards

Waterproof
Not water-restistant

Our boards are waterproof all the way through. Not coated, not treated. Water simply can’t get in. Leave them underwater.

They do not care.

Dive in
You are now below the waterline
This is where most boards fail. Ours live here happily.
0%
Water ingressall the way through
15yrs
Zero callbackssince 2011
99.99%
Antibacterialclinical-grade
Lifetime guaranteein writing
WCB

The board you build from.

Our Waterproof Construction Board: one solid panel, the same waterproof material all the way through. It saws, routes and drills like wood, holds a screw 2.5× better than MDF, and never swells at a cut edge.

FS

The board you laminate onto.

Our Waterproof Fabrication Sheet: the waterproof core under the finish you choose. Light to handle, and bonds with HPL, laminate, veneer and PVC.

FS-cored IPS washroom panelling
The proof

One week underwater. Two outcomes.

Real footage, no edits — plus the data and the guarantee behind it.

The Sealwise guarantee

Zero callbacks. Fifteen years.

A lifetime waterproof guarantee, in writing — because the boards earned it first.

0
Sectors

At home where water usually wins.

Healthcare, dental, veterinary, cleanrooms and flood-resilient builds.

Circular by design

Made using recycled material. Fully recyclable.

Recycled material in, decades of service, then free take-back — never landfill.

About Sealwise

A Somerset family business.

Designed and backed from Somerset since 2011, and used in hospitals and clinics worldwide.

Where you’ll find us.

The rooms where water and hygiene give no second chances.

Veterinary

Practices & kennels

Cleanrooms

Labs & controlled spaces

Flood resilience

Kitchens & ground floors

Healthcare

Wards & wet rooms

Dental

Surgeries & sterile rooms

Your sector?

Talk to us →

Your sector?

Talk to us →

Flood resilience

Kitchens & ground floors

Cleanrooms

Labs & controlled spaces

Veterinary

Practices & kennels

Healthcare

Wards & wet rooms

Dental

Surgeries & sterile rooms

Get started

Drill it. Fill it with water. Leave it a month.

We’re confident in what you’ll find. Request a free sample and put it to the test yourself.