A single component, borate and chlorine free, water borne intumescent coating designed for on-site application to interior exposed structural steel requiring protection from cellulosic fire. Interchar 1120HY is a low VOC acrylic intumescent material independently fire tested for up to 3 hour fire ratings in accordance with ASTM E119/UL263.


Product Chemistry
Water Borne Intumescent Coating
Volume Solids
VOC content (EPA method)
20 g/lt
Colour Options
Limited range, White
Gloss level
Maximum Dry film thickness
1000 μm
Minimum Dry film thickness
300 μm
Number of components
Single Pack
Water Based
Dry time (at 15°C)
5 Hours


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  • TDS
  • SDS
  • Application Guidelines
  • Documents
Product datasheet Language Download
Interchar 1120HY English (United States) PDF
Interchar 1120HY English (United Kingdom) PDF
SDS Language Regulatory Body Download
Application Guideline Language Download
Document Name Document Type Language Download

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