Newton HydroCoat 903 Primer for Cementitious Waterproof Membranes - For Cementitious Waterproof Membranes
Verified by manufacturer 4 months ago
Primer designed for concrete applied prior to Newton’s cementitious waterproofing membranes & concrete repair products. 903 increases the adhesion of slurries, coatings & more to the substrate
Application
APPLICATION
Saturate the horizontal concrete with water. Allow the water to soak into the concrete for 5-10 minutes. Remove all standing water and leave for another 5-10 minutes. Apply the product onto the concrete surface using the desired method of application. Ensure that the primer is applied evenly. It is better to apply too little product and then apply more as needed, than to apply too much and have to remove. The primer must soak into the surface of the concrete. Excess product must be removed by brush or squeegee.
POT LIFE & FURTHER USE
HydroCoat 903 Primer is a single component liquid with low viscosity with no chemical cure and so has no pot life. When some product is unused, simply reseal the packaging and use within shelf life parameters.
DRYING TIMES
For curing/drying times please see Technical Data Table on page 2.
OVER-COATING
The product to be applied over the primer, must be applied within 7 days. If the primer is not over coated after 7 days, the primer will need to be removed by grinding or sand-blasting.
CONSTRUCTION & PREPARATION
In all cases, concrete floors should be ground or sandblasted to remove laitance. For further information, please refer to the data sheet of the product to be applied over the HydroCoat 903 Primer.
CLEANING
Clean tools with water. Contaminated water must be disposed of safely and in accordance with local authority regulations for the disposal of waste products. Please refer to product label and product SDS for further information on safe disposal.
LIMITATIONS
• Do not apply too much primer. The substrate should be discoloured by, not saturated in the primer. Applying too much primer will reduce the bond of the coating to the concrete
• Do not apply prior to heavy rain
• Do not apply at temperatures lower than +5°C or higher than +35°C
• Not suitable for concrete containing wax or fat capillary blocking admixtures
• If adulterated by rain, mechanically remove the primer
Description
Newton HydroCoat 903 Primer is a modified styrene/acrylic copolymer primer for concrete that is applied prior to the installation of Newton’s range of high performance cementitious waterproofing membranes, concrete repair and floor coating products, minimising the risk of out-gassing from both internal and external concrete substrate. The primer is extremely quick and simple to apply by broom, airless spray, roller or squeegee, Newton HydroCoat 903 Primer can be applied over new and damp concrete and is soon ready for the application of the Newton membrane above, providing for continuity of work even during the wetter months of the year when most membrane systems cannot be used.
KEY BENEFITS
• Quick to apply
• Is applied to saturated concrete and so can be applied shortly after heavy rain
• Can be applied to new concrete > 20 N/mm2
• Significantly reduces the risk of pin-holing within the cementitious slurry or coating lowering the incidence of outgassing
• Very quick curing - the membrane or coating can be applied within
NEWTON SYSTEMS
HydroCoat 903 Primer is a component of the Newton HydroCoat System for internal ‘Type A’ waterproofing. HydroCoat 903 Primer is applied to the horizontal concrete surface prior to the application of Newton cement based membranes, coating or repair products
LIFE EXPECTANCY
The primer is taken up by the surface capillary network of the concrete and then covered by the coating, membrane or repair product and therefore has a life expectancy of the concrete it is applied to or the covering above.
Features and benefits:
- Extremely quick to apply – 10m²/min is possible.
- Can be applied to damp/wet concrete.
- Can be applied to new concrete > 20N/mm².
- Further increases the adhesion of Newton cementitious slurries, coatings and repair products to the concrete substrate.
- Very quick curing – the membrane or coating can be applied within 40 mins at 25ºC and within 90 mins at 5ºC.
General information
Color | Green Manufacturer guidancePale green. |
Finish | Smooth |
Material | Liquid Guidance for specification option: Modified styrene/ acrylic copolymer primer |
Shape | Guidance for specification option: Form - single component: Low viscosity liquid |
Length | Bespoke |
Width | Bespoke |
Height | Bespoke |
Warranty description | 60 year |
Uniclass | |
CAWS | J30/110 Cold-applied tanking J30/130 Cold-applied damp-proofing J31/10 Warm deck roof coating J31/110 Cold deck roof coating J31/120 Warm deck roof coating J31/130 Inverted roof coating J31/353 Waterproof coating J40/295 Geocomposite studded cavity drainage/ venting membrane |
Product range |
Specification data - Primer-sealers
Composition | Low viscosity liquid modified styrene/ acrylic copolymer primer. |
Specific gravity | 1.02. |
Pack size (plastic container) | 5 L. |
Weight | 5.3 kg. |
Application rate - open surface after grinding | 0.1 - 0.2 L/m². |
Shelf life | 12 months. |
Application temperature | +5°C to +35°C. |
Service temperature | -15°C to +180°C. |
Odour | Slight neutral odour. |
VOC content | 0%. |
Sustainability data
Contains Red List materials | Yes |
Country of material origin | United Kingdom |
Country of product manufacture | United Kingdom |
Recyclability | 0 |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 0 % |
Literature
HydroCoat 903 Primer TDS
HydroCoat 903 Primer SDS
Case studies
Flooded Shop Basement Refurbishment, Chelsea