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Sealwise WCB®

Revolutionary and sustainable new material with innovative qualities

100% Waterproof Construction Board (WCB)



Blackburns Metals are UK distributors for SEALWISE WCB® the revolutionary and sustainable new material with innovative qualities that make it ideal for both internal and external applications across a wide range of industries.

Sealwise WCB® can be considered the Waterproof Construction Board (WCB) of choice, consisting of PVC 100% waterproof outer skins that surround a UPVC foam core, it is lightweight, has a low density (approx. 0.70g/cm) and retains a high rigidity - combine these attributes with an exceptional surface quality ideal for Digital printing, applying vinyl, painting and laminating and you have the perfect product for the Sign & Display industry.


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Sealwise WCB® is created from recycled materials proving its sustainability and allowing this exceptional product to be fully recycled. Sealwise also benefits from anti-bacterial qualities bringing unrivalled peace of mind in the fight against infection across a wide range of industries.

Sealwise WCB® is perfect for hardworking environments and supersedes laminates, MDF, wood, expensive thermoset resins and cheaper low-quality products. Sealwise can be an effective alternative to stainless steel and ACM's when used for certain applications. Sealwise is a co-extruded composite material suitable for fabrication and can be bonded, line bent, routered and machined.


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Sealwise WCB® excels when compared to other PVC products:

  • Sealwise WCB® has a weatherproof outer skin
  • Better surface finish
  • Anti-static making it ideal for digital printing
  • Higher resistance to atmospheric corrosion
  • UV resistant - 10 year manufacturer guarantee against deformation and colour
  • Effective anti-bacterial qualities
  • Fire retardant to DIN 4102 B1
  • Complete waterproofing for life!
  • Excellent soundproofing
  • Good chemical resistance

Blackburns offer the following sheet sizes from stock:

  • 2440mm x 1220mm
  • 3050mm x 1500mm
  • Thickness: 3mm, 6mm, 10mm, 16mm, and 18mm

We can offer other sizes from 24mm to 30mm based on mill minimum quantities and lead times. Please contact your local Blackburns service centre for further details.


Click here to download the Blackburns Sealwise WCB® PDF...

Click to view Blackburns Sealwise WCB® - Technical Datasheet...

Click to view Blackburns Sealwise WCB® - Independent Fire Cert DIN 4102 B1...



eco friendly

In the UK alone, some 400,000 tonnes of waste particle board (such as MDF and chipboard) is discarded each year into landfill. At the same time the government and other agencies are working hard to reduce waste. Laws are coming into force which will have stringent controls on what can go into landfill.

Sealwise WCB® is made from recycled material