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Type 7HD™ is a spray-applied, factory blended cementitious fireproofing. Type 7HD™ is high density to resist accidental physical damage. The primary use of Type 7HD™ is for protection of columns and beams. When used on floor or roof decks attachment of metal lath is required prior to application.

Product Type: Coating

Features: Combustion Resistant, Corrosion Resistant, Fire Proof, Fungus Resistant, High Density, High Durability, High Fire Retardancy, High Hardness, High Strength

Compatible Substrates & Surfaces: Metal, Steel

Application Method: Spray

Chemical Family: Calcium & Calcium Compounds

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Product Type

Features & Benefits

Product Highlights

Type 7HD™ is formulated with a non-combustible blend of high quality Portland cement and vermiculite. It is a higher density, harder and stronger product than general fireproofing. It is ideal for protection of structural steel where the potential for damage from abuse and severe conditions exist. It has excellent hardness and durability.

Applications & Uses

Application Method
Compatible Substrates & Surfaces

Properties

Physical Properties
ValueUnitsTest Method / Conditions
Adhesionmin. 15000psfASTM E-736
CombustibilityPassed, noncombustible-ASTM E-136
Compressive Strengthmin. 500lb/in²ASTM E-761
Corrosion of SteelPassed, no contribution to corrosion-ASTM E-937
Density40.0pcfASTM E-605
Effect of DeflectionPassed, no spalling or delamination-ASTM E-759
Effect of ImpactPassed, no cracking, spalling or delamination-ASTM E-760
Erosion by AirPassedg/ft²ASTM E-859
Fire ResistancePassed-ASTM E-119
Fungi ResistancePassed, no growth-ASTM G-21
Hardness40.0Shore DASTM D-2240
Surface BurningFlame Spread 0, Smoke 10-ASTM E-84