GoMix Complete Waterproofing Systems
Liquid Membranes • Cementitious Slurries • Leak Repair • Roof Protection
GoMix supplies liquid membranes, cementitious slurries, crystalline mortar, waterproofing latex and rapid leak-repair products for roofs, wet areas, basements, pools, tanks and masonry. Product definitions, mix ratios, coverage and packaging below are aligned with the published GoMix technical data sheets.
Membranes & Surface Protection
Slurries, Mortars & Latex
Leak Stopping & Sealing
Liquid Membranes & Surface Coatings
Transparent repair coatings, exposed-roof membranes and fiberglass-reinforced acrylic sealing systems. These products have different limits and should not be treated as interchangeable.
GoMix K6 Transparent Waterproof Adhesive
A colorless, flexible high-polymer liquid coating for waterproof repair over sound exterior tiles, paint and masonry finishes without removing the original coating.
Published TDS Data
| Product form | Transparent viscous liquid |
|---|---|
| Coverage | Approx. 0.1–0.2 kg/m² at 0.1–0.2 mm |
| Key performance | 2400% elongation; 21.0 MPa bond strength |
| Impermeability | 0.3 MPa, no leakage for 30 minutes |
| Packaging | 20 kg pail |
| Shelf life | Minimum 1 year in covered, dry storage |
Suitable Uses & Important Limit
- Exterior-wall leakage repair over sound tiles or paint
- Waterproof treatment at finishing-material interfaces
- Moisture-proof treatment of interior and exterior wall finishes
Important: Not suitable for long-term water immersion.
GoMix K8 Exposed Roof Waterproofing
A cold-applied, one-component waterborne acrylic liquid membrane for exposed roofs, complex roof details and waterproofing beneath screeds.
Published TDS Data
| Product form | Grey liquid; acrylic dispersion |
|---|---|
| Coverage | Minimum total consumption 1.0 kg/m² |
| Per coat | Maximum 0.8 kg/m² without reinforcement |
| Dry film | Minimum 0.35 mm |
| Packaging | 20 kg plastic pail |
| Shelf life | Minimum 12 months in sealed storage |
Suitable Uses & Important Limit
- New and refurbished exposed roofs
- Roofs with complex geometry and difficult details
- Waterproofing under screeds in wet rooms
Important: Not recommended for permanent immersion, pedestrian traffic or direct application of cementitious tile adhesive without technical advice.
GoMix K10 Seal
A white, ready-to-use acrylic liquid waterproofing and sealing membrane reinforced with fiberglass matting for roofs, terraces and under-tile wet areas.
Published TDS Data
| Product form | White, ready-to-use acrylic liquid membrane |
|---|---|
| System | Reinforced with fiberglass matting |
| Coverage | One 15 kg drum covers approx. 5–8 m² with fiberglass |
| Elongation | 304% |
| Packaging | 15 kg drum |
| Shelf life | Up to 12 months in unopened storage |
Suitable Uses & Important Limit
- Terraces, balconies, concrete roofs and cement toppings
- Bathroom, shower and kitchen walls or floors before tiling
- Waterproofing over concrete, render and suitable building boards
Important: K10 is a liquid acrylic membrane, not a self-adhesive roll. It is non-trafficable and not intended as the final layer in permanent immersion.
Cementitious & Latex Waterproofing Systems
Two-component slurries, an acrylic cement admixture and a capillary crystalline mortar for wet areas, pools, tanks, basements and other concrete or masonry structures.
GoMix K9 Waterproofing Latex
A single-component 100% acrylic copolymer latex admixture that is mixed with ordinary Portland cement to form a flexible waterproof coating.
Published TDS Data
| Mixing ratio | 20 kg K9 latex + approx. 16 kg Portland cement (1:0.8) |
|---|---|
| Coverage | Approx. 15–20 m² per mixed set with fiberglass |
| Coat consumption | Approx. 0.75 kg/m² per coat |
| Solids | 60% by weight |
| Packaging | 20 kg and 200 kg containers |
| Shelf life | Up to 12 months in unopened storage |
Suitable Uses & Important Limit
- Terraces, balconies, concrete roofs and wet areas
- Basements, pools, tanks and masonry beneath a protective finish
- Interior and exterior walls and floors before covering
Important: K9 is an acrylic cement admixture, not a ready-to-use final coating. Do not leave it exposed in permanent immersion.
GoMix K11 Waterproofing Slurry
An ANSI A118.10 two-component acrylic and cement-based flexible waterproofing slurry for positive-side protection before tile or stone installation.
Published TDS Data
| Components | 25 kg cement-based powder + 9 kg acrylic liquid |
|---|---|
| Coverage | Ground moisture 1.5; hydrostatic 1.8; negative side 2.2 kg/m² |
| Application | Two coats; second coat after approx. 4–5 hours |
| Tile installation | Minimum 12 hours after membrane application |
| Dry film | Maximum 2 mm |
| Shelf life | Minimum 1 year in covered, dry storage |
Suitable Uses & Important Limit
- Bathrooms, showers, kitchens and other tiled wet areas
- Interior or exterior concrete and masonry floors and walls
- Pools, tanks, terraces and balconies with the specified system details
Important: Use the supplied powder and acrylic liquid components; the TDS does not specify a powder-to-water mix.
GoMix K12 Flex Waterproofing Slurry
A two-component highly flexible cementitious waterproofing mortar for foundations, retaining walls, balconies, pools and other demanding structures.
Published TDS Data
| Components | 25 kg powder + 12.5 kg liquid |
|---|---|
| Coverage | Ground moisture 1.6; hydrostatic 2.3; negative side 2.8 kg/m² |
| Water pressure | Waterproof up to 1.5 bar |
| Elongation | 130% |
| Application temperature | 5°C to 45°C |
| Shelf life | 12 months in unopened storage |
Suitable Uses & Important Limit
- Foundations, retaining walls, basements and suspended floors
- Pools, fountains, basins, terraces and balconies
- Concrete, brickwork and blockwork in coastal or industrial settings
Important: Do not add cement or sand to the supplied two-component system.
GoMix K13 High-Flex Waterproofing Slurry
A high-flex two-part acrylic-modified cementitious waterproofing material for damp areas and structures that require crack-bridging movement accommodation.
Published TDS Data
| Components | 25 kg powder + 18 kg latex |
|---|---|
| Coverage | Ground moisture 1.7; hydrostatic 2.5; negative side 3.0 kg/m² |
| Elongation | >200% |
| Crack bridging | Up to 2 mm |
| Application temperature | 5°C to 45°C |
| Shelf life | Minimum 1 year in covered, dry storage |
Suitable Uses & Important Limit
- Pools, water tanks, decks and roofs
- Kitchens, toilets, balconies and other wet areas
- Precast joints, masonry and substrates with movement or shrinkage cracks
Important: K13 is a high-flex slurry, not a crystalline waterproofing powder.
GoMix WPS Waterproofing Mortar (CCCW)
A cementitious capillary crystalline waterproofing mortar made from Portland cement, fine quartz and active chemicals for concrete and masonry structures.
Published TDS Data
| Mixing ratio | Brush/trowel: 25 kg + 7.5 L water; spray: 25 kg + 5.75–6.25 L |
|---|---|
| Coverage | 3 kg/m² at 1.5 mm; 4 kg/m² at 2 mm; 6 kg/m² at 3 mm |
| Setting time | Approx. 2–4 hours |
| 28-day compressive strength | 40 N/mm² |
| Packaging | 25 kg bag |
| Shelf life | 12 months in unopened, dry storage |
Suitable Uses & Important Limit
- Basements, tunnels, parking structures and factories
- Water tanks, reservoirs and swimming pools
- Concrete and masonry exposed to active or passive water pressure
Important: WPS is a grey cementitious crystalline powder, not a ready-to-use fast-cure polymer liquid coating.
Rapid Leak Repair
A rapid-setting hydraulic cement solution for active leaks and prepared repair cavities.
GoMix K7 Waterplug
A rapid-setting hydraulic cement plug for stopping active water leaks and repairing holes or cracks in concrete and masonry.
Published TDS Data
| Mixing ratio | 1 kg powder + approx. 0.35 L clean water |
|---|---|
| Setting time | Approx. 120 seconds |
| Leak stopping | Approx. 3 minutes |
| 28-day compressive strength | 5,500 psi |
| Packaging | 5 kg plastic sack; 6 bags per carton |
| Shelf life | 12 months at 20°C in dry, sealed storage |
Suitable Uses & Important Limit
- Active internal or external water leaks
- Leaking joints, holes and fine cracks
- Pipe or conduit sealing and anchor-bolt setting
Important: K7 is a hydraulic cement leak plug, not a polyurethane roof coating. The TDS gives no area-based coverage rate.
Waterproofing Product Selection Matrix
Use product form, intended application, packaging and published coverage together. Final selection must follow substrate condition, water pressure and the current TDS.
| Product | System Type | Typical TDS Use | Package | Published Rate |
|---|---|---|---|---|
| K6 | Transparent high-polymer liquid | Existing exterior tile/paint and wall repair | 20 kg pail | 0.1–0.2 kg/m² |
| K8 | One-component acrylic liquid membrane | Exposed roofs and complex roof details | 20 kg pail | Minimum 1.0 kg/m² |
| K10 | Ready-to-use acrylic liquid + fiberglass | Roofs, terraces and under-tile wet areas | 15 kg drum | 15 kg covers approx. 5–8 m² |
| K9 | Acrylic latex mixed with Portland cement | Flexible coating beneath protective finishes | 20 / 200 kg | Mixed set covers approx. 15–20 m² |
| K11 | Two-component acrylic cement slurry | Wet areas and pre-tile waterproofing | 25 kg + 9 kg | 1.5 / 1.8 / 2.2 kg/m² |
| K12 | Two-component flexible cementitious mortar | Pools, foundations, balconies and basements | 25 kg + 12.5 kg | 1.6 / 2.3 / 2.8 kg/m² |
| K13 | High-flex acrylic-modified cementitious slurry | Movement-prone substrates and crack bridging | 25 kg + 18 kg | 1.7 / 2.5 / 3.0 kg/m² |
| WPS | Cementitious capillary crystalline mortar | Concrete and masonry under water pressure | 25 kg bag | 3 / 4 / 6 kg/m² |
| K7 | Rapid-setting hydraulic cement plug | Active leaks, holes and cracks | 5 kg sack | Estimate by repair volume |
Rates shown above are not interchangeable. Ground moisture, hydrostatic pressure, negative-side waterproofing, reinforcement and substrate condition can change consumption.
Choose by Waterproofing Condition
These are selection starting points from the published TDS, not fixed multi-product packages. Confirm the substrate, exposure and project specification before ordering.
Existing tiled or painted exterior wall
K6 Transparent Waterproof Adhesive
Use over a sound, clean surface where keeping the original finish is important.
Exposed roof
K8 Exposed Roof Waterproofing
Use the one-component UV-resistant liquid membrane; do not treat it as an immersion system.
Bathroom or kitchen before tiling
K10 Seal or K11 Waterproofing Slurry
Choose the liquid fiberglass-reinforced system or the two-component slurry according to substrate and project specification.
Pool, tank, foundation or retaining wall
K12 or K13
Select the flexible cementitious system according to water pressure and required movement capacity.
Concrete or masonry under water pressure
WPS Waterproofing Mortar
Use the cementitious capillary crystalline mortar at the TDS rate for the relevant exposure.
Active leak
K7 Waterplug
Use the rapid-setting hydraulic cement plug and estimate material from the prepared repair volume.
Waterproofing Product Questions
Answers below are aligned with the current GoMix technical data sheets.
Is K6 a rigid cement-based coating?
No. K6 is a transparent, flexible high-polymer liquid coating used mainly for repair over sound exterior tiles, paint and other finishes.
Is K7 a polyurethane roof coating?
No. K7 Waterplug is a rapid-setting hydraulic cement product for active leaks, holes and cracks. Its set time is approximately 120 seconds and leak stopping is approximately 3 minutes.
What is K8 designed for?
K8 is a cold-applied, one-component waterborne acrylic liquid membrane for exposed roofs and complex roof details. It is not a rigid industrial cement coating.
Is K10 a self-adhesive roll membrane?
No. K10 Seal is a white, ready-to-use acrylic liquid membrane reinforced with fiberglass matting. One 15 kg drum covers approximately 5–8 m² with fiberglass under the published system.
What is the K11 package and when can tiling start?
K11 is supplied as 25 kg cement-based powder plus 9 kg acrylic liquid. Ceramic tiling may start a minimum of 12 hours after the waterproofing membrane is applied.
What is the difference between K12 and K13?
Both are two-component cementitious systems. K12 is published at 130% elongation and waterproof up to 1.5 bar; K13 is the higher-flex system with more than 200% elongation and crack bridging up to 2 mm.
Is WPS a fast-cure polymer liquid coating?
No. WPS is a grey cementitious capillary crystalline waterproofing mortar supplied as a 25 kg powder bag and mixed with water for brush, trowel or spray application.
Can one coverage rate be used for every waterproofing job?
No. Coverage changes with the product and exposure. Ground moisture, pressure water, negative-side application, dry-film thickness, reinforcement and substrate condition must be considered.
Professional Waterproofing
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