A combination of two Denso Steelcoat™ systems to give extra protection in difficult areas such as badly pitted and rusted pipe/steelwork and damp sweating pipe/steelwork.

Surface Preparation

  • Hand Tool Cleaning


The combined Steelcoat 100/400 System is now widely specified for difficult applications because it brings all of the strengths of both Steelcoat systems together so well. The combined system comes in two variations A and B.

Denso Steelcoat 100/400(A) System:
For badly pitted and rusted pipework and structural steelwork. For pipework, Steelcoat 100/400(A) System comprises Denso Hi-Tack Primer followed by a double wrap (55% overlap) of Denso Hi-Tack Tape. The outer Denso Ultraseal RT Tape is applied with a 25% overlap before painting. For steelwork, the Steelcoat 100/400(A) System is applied as above but with a single layer only (25% overlap) followed by Denso Ultraseal RT Tape with a 25% overlap before painting. Once applied the fabric backed Denso Ultraseal RT Tape is overpainted with two coats of Denso Acrylic Topcoat.

Denso Steelcoat 100/400(B) System:
For damp/sweating pipework surfaces. As above ‘For pipework’ with Denso Paste S105 replacing the Denso Hi-Tack Primer.


  • Cold-applied
  • Surface tolerant
  • Minimum surface preparation needed – hand tool cleaning only
  • Highly conformable
  • Ideal for badly pitted and rusted steelwork
  • Ideal for damp or humid steelwork
  • If applied in the recommended way it will have a 30 year expected service life
Technical Data Sheet

Denso Hi-Tack Primer

Denso Hi-Tack Tape

Denso Ultraseal RT Tape

Denso Paste S105

Denso Acrylic Topcoat

Application Instructions

Denso Steelcoat 100 / 400 System IFU

Denso Steelcoat 100 /400 System IFU – High Temperature


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WCD Steelcoat Systems

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