MasterRoc
Underground Construction Solutions for Tunnelling and Mining
Our Comprehensive Portfolio for the Mining & Tunnelling Industry
The MasterRoc product range is comprised of market-leading innovations and application expertise for the tunnelling and mining industries. Our reliable, customer-focused solutions include several outstanding technologies:
Sprayed concrete: performance enhancers including accelerators, fibres, slump retainers, and plasticizers.
Sprayable bonded waterproofing membranes that form a unique and integral part of composite tunnel lining designs.
Injection and membrane technologies deliver safety, economy and performance to the mining and tunnelling industries.
Leading range of chemical technologies that ensures the safe and economical operation of tunnel boring machines.

What Makes MasterRoc Unique?
The MasterRoc product range is designed to be a single source for all of our customers’ underground construction needs. In addition to a wide range of products, our globally connected team assists our customers in selecting the right products and systems, providing the best, most cost-effective and complete solutions based on innovation and technology, allowing our customers to operate successfully and to the highest safety standards.
Global underground construction expertise
The MasterRoc product range, supported by Master Builders Solutions global underground construction experts, is a world leader in the provision of reliable solutions that are focused on the needs of tunnelling and mining engineers, owners and contractors. By connecting with our customers from project start-ups, we provide solutions ranging from product selection to training and application consultancy.
To learn more about our tunnelling & mining solutions you can select from the range below.
Backfill
Injection
Rock Bolting
Sprayed Concrete
Thin Spray-On Liners
TBM
Waterproofing
The MasterRoc product range
MasterRoc AGA 255
Powerful stabilizer admixture with low environmental impact to improve the performance of twocomponent backfill grouts that require higher open times in mechanized tunneling.
MasterRoc AGA 370
High-performance liquid accelerator as component B of two-components annular grout system for TBM tunneling
MasterRoc FLC 100
Shrinkage compensating and plasticising powedered admixture for anchoring and bolting cemetitious grouts
MasterRoc HCA 20
Cement hydration control system for wet and dry sprayed concrete, grouting and cement injection
MasterRoc MP 230 CLN
An organic-based solvent cleaner for cleaning injection pumps, lines and other associated equipment.
MasterRoc MP 300
Low-viscosity acrylic resin with adjustable set times and adjustable water-to-resin ratio
MasterRoc MP 304
Fast-reacting, highly flexible acrylic resin with adjustable reaction speed for permanent water sealing
MasterRoc MP 307 CE
Fast-reacting acrylic resin for permanent water sealing with low viscosity for good penetration, CE certified to EN 1504-5
MasterRoc MP 309
Acrylic resin for the consolidation of sand/silt based strata and for injection into fine joints and fissures in rock
MasterRoc MP 320
Solvent-free, colloidal silicate grout for rock injection and consolidation of sandy and silty strata
MasterRoc MP 350
1k polyurethane resin for permanent crack sealing of concrete/rock in underground structures and sealing of minor water ingress
MasterRoc MP 355 1K
1k polyurethane injection foam for small to mid-volume water ingress
MasterRoc MP 355 1K DW
1k polyurethane potable water-approved injection foam for small to mid-volume water ingress
MasterRoc MP 355 Thix
Highly Reactive, Two Component Polyurethane Injection Resin / Foam to Stop Very High-Volume Water Ingress
MasterRoc MP 358 GS
Reactive polyurethane injection resin for rapid stabilisation of strata with a 1.5 x foam factor
MasterRoc MP 358 SC
Highly reactive polyurethane injection resin for rapid stabilisation of strata with a 3 x foam factor
MasterRoc MP 367 Foam
Highly Reactive, Two Component Polyurea Silicate Injection Foam for Cavity Filling and Ground Consolidation
MasterRoc MP 368
Fast-reacting polyurea silicate resin specifically designed for rapid ground consolidation
MasterRoc MP 368 Tix
Highly Reactive, Thixotropic and Fire Resistant Two Component Polyurea Silicate Injection Resin for Ground Consolidation in Highly Fractured Strata and for Concrete Repair
MasterRoc MP 650
Fast setting 16µm microfine portland cement for rock and soil injection with a Blaine value of 650m2/kg
MasterRoc MP 650 SR
Fast setting 16µm microfine portland cement for rock and soil injection with a Blaine value of 650m2/kg
MasterRoc MS 610
Densified silica fume for cast and sprayed concrete
MasterRoc MS 685
A lubricating aid, viscosity modifying agent (VMA) and strength enhancer for concrete
MasterRoc MSL 345
Waterproofing membrane
MasterRoc RBA 380
Fast-reacting polyurea silicate pumpable resin for rock bolting and anchoring
MasterRoc RBA 387
Rapid reacting polyurea silicate pumpable resin for rock bolting and anchoring
MasterRoc SA 160
A set accelerating admixture for sprayed concrete
MasterRoc SA 194
Alkali-free, liquid high performance set accelerator for sprayed concrete
MasterRoc SA 545
Alkali-free, non-caustic and non-toxic high-performance powder accelerator for dry-mix sprayed concrete
MasterRoc SLF 30
Soil conditioning foam for Tunnel Boring Machines (TBM)
MasterRoc SLF 41
Soil conditioning foam for Tunnel Boring Machines (TBM)
MasterRoc SLP 1
Liquid polymer for soil conditioning in tunnel boring machines
MasterRoc SWA 710
Strong thickener for soil conditioning in Tunnel Boring Machines (TBM)
MasterRoc TCC 735
Chloride-free liquid concrete improver
MasterRoc TSG 800
New Fire-Resistant Tail Sealant for Underground Construction
MasterRoc TSG 870
First Fill Fire Resistant Tail Sealant for Shielded Tunnel Boring Machines (TBM)