ISO 9001:2015
Up to 1320°C
High-Temperature Resistant Structural Repair Mortar
SKU 28801
Structural Concrete HTR®
Five-Star Structural Concrete® HTR is a unique high-temperature resistant concrete repair mortar that gains strength rapidly — exposed to 540°C in six hours and 1320°C in seven days of curing.
Quotes returned same business day · Technical support at +971 56 408 1507
Five Star Structural Concrete HTR® is a premium, high-performance, heat-resistant structural repair mortar engineered for the rehabilitation and restoration of concrete exposed to elevated temperatures and demanding industrial environments. Designed to deliver exceptional compressive strength, durability, and long-term performance, it restores structural integrity while minimizing downtime in critical facilities.
Formulated for use in severe service conditions, Five Star Structural Concrete HTR® maintains its performance under thermal exposure, making it an ideal solution for industrial plants, refineries, power generation facilities, steel and cement plants, petrochemical complexes, and other high-temperature applications. Its excellent bond strength, low shrinkage, and durable composition ensure permanent repairs that withstand harsh operating conditions.
Five-Star Structural Concrete HTR is a high early strength, single component permanent repair material specifically designed for environments exposed to sustained high temperatures and thermal cycling. Supplied in a 25 kg bag. Exposed to 540°C in 6 hours and withstanding thermal cycling up to 1,320°C in 7 days, it is the go-to choice for coker, kiln, foundry, and steel mill repairs where standard repair materials fail under heat.
Why crews specify it
01High early strength and heat resistance — 540°C in just 6 hours and 1320°C in 7 days
02Thermal shock resistance & sulphate resistance
03Single component — no primer / curing agent, easy to use
04Ideal for rapid repairs during shutdowns — minimize costly downtime
05Designed for coker, kiln, and foundry repair applications
0628-day strength of 48 MPa for long-term structural integrity
Where it is used
Areas of high temperature exposure
Thermal cycling environments up to 1,320°C
Sulphate resistance
Rapid repairs during shutdowns
Coker unit repairs
Kiln repairs and relining
Foundry floor and wall repairs
Steel mill and aluminium plant infrastructure
Typical properties at 21°C
Data reflects typical results based on laboratory testing under controlled conditions. Reasonable variations may result.
Packaging, yield and shelf life
Supplied in a 25 kg bag. Yield — 12.4 liters. Shelf life is one year in original unopened packaging stored dry.
Placement in four steps
1 · Surface preparation
Surfaces must be clean, sound and rough — prepared to coarse aggregate exposure, free of oil, grease and laitance. Remove all loose material and provide a sound substrate. Saturate with potable water prior to application.
2 · Mixing
Add clean potable water to a mechanical mixer, then add powder gradually. Mix 3–4 minutes to a uniform, lump-free consistency. Working time is approximately 15–20 minutes at 21°C.
3 · Application
Apply by trowel, hand-pack, or form-and-pour. For thicker sections, place in layers, consolidating each layer before applying the next.
4 · Curing
Wet cure continuously for a minimum of 2 hours after final set. Protect from direct sun and wind during curing. Allow to reach required strength before exposing to service temperatures.
Prior to application, read all product packaging thoroughly. For detailed placement procedures refer to Five Star® Design-A-Spec™ or call +971 56 408 1507. Contains cementitious material and crystalline silica — refer to the Safety Data Sheet before use.
Get a quote and technical review
Send us the service temperature, repair dimensions and volume. A specialist confirms the right HTR grade and returns pricing with lead time the same business day.
ISO 9001:2015 certified
American owned & operated
Worldwide distributor network
Explore our product range
Different working time, different geometry, different temperature. There is a Five Star repair material matched to every placement.
